🏅 High Temperature Materials And Processes

Investigation on improving the comprehensive performance of ... - Nature

· The CMAS corrosion behavior of high-entropy (Y 0.2 Dy 0.2 Er 0.2 Tm 0.2 Yb 0.2) 4 Hf 3 O 12 hafnate material prepared by ultrafast high-temperature sintering (UHS). J. Eur.

5 days ago

Microstructure and wear behaviour of AlCoCrFeNi-coated SS316L by ...

· The ageing process gradually increases by 13.8% in the monoclinic phase of zirconia and a clear increase in thermal expansion ... High-temperature wear analysis was examined at 200°C, 400°C and 600°C. ... where the material experiences high shear stress and undergoes plastic deformation [Citation 54]. As the relative motion continues, the ...

3 days ago

Study on preparation and mechanical properties of a new type of high ...

· Ultra-high performance concrete (UHPC) tends to crack and flake at high temperature, which causes the structure to lose its overall stability and collapse, posing a serious threat to people’s lives and property safety. In this study, by selecting the cementitious material and the high-temperature resistant aggregate, a new type of high-temperature resistant ultra-high performance concrete ...

4 days ago

Crystals | Free Full-Text | High-Temperature Tribological Behavior of ...

· This article details a method for preparing cermet matrix composites via Fast hot pressing (FHP) sintering technology and emphasizes their potential use in extremely high-temperature settings. The material primarily consists of NiCr alloy, Cr3C2, and LaF3. An in-depth investigation was conducted on the tribological properties of the specimen by conducting sliding tests against a Si3N4 ball at ...

3 days ago

Precipitation Hardening – How It Works, Benefits & More

· Precipitation hardening is a type of heat treatment process used to increase the yield and tensile strength of metal alloys. in which material hardness improves as a function of time. The process uses dissolved impurities to improve the mechanical properties of a material. It works by separating specific constituents that bind the mixture ...

5 days ago

HTC2024 - Jönköping University

· Jönköping University – Department of Materials & Manufacturing is pleased to invite you to the 11th International Conference on High Temperature Capillarity, HTC 2024, May 26- 30, 2024, Sweden. The conference will be held at Ersta Konferens & Hotell in Stockholm (Monday) and on board the Baltic Sea cruise ship (Tue.-Thur.).. The conference will consist of oral presentations (single session ...

5 days ago

Thermal Management System with Intrinsically High Thermal Conductive ...

· Phase-change materials with high latent heat can release and absorb large amounts of heat, which has potential application in various fields such as energy storage, electronic devices, and electrical vehicles (EVs). However, there is still a need to improve thermal conductivity and antileakage performances. Herein, a three-dimensional (3D) metal–organic hydrogel (HGL) has been prepared by ...

Apr 8, 2024

Materials | Free Full-Text | Exploring the Influence of Nanocrystalline ...

· The materials used in high-temperature applications must exhibit the required resistance to oxidation at such temperatures. ... The consolidation process utilized specifically optimized parameters: a temperature of 900 °C, pressure of 90 MPa, heating rate of 100 °C/min, holding time of 2 min, and a vacuum level of 0.1 Pa. The consolidated ...

Apr 8, 2024

High Temp. Mater. Processes

Powder-size driven facile microstructure control in powder-fusion metal ...

· With increasing particle sizes from 10 µm until ~35 µm, the preheat temperature falls significantly with fine particles at very high temperatures (Fig. 1a). Exceeding a particle size of 35 µm ...

4 days ago

Investigation on improving the comprehensive performance of ... - Nature

· These findings are of great advantage to further accelerate the screening process of candidate EBC materials in ... Mater. 15, 804–809 ... 4 Al 2 O 9 with good high temperature stability, low ...

5 days ago

A Strategy for Partial Replacement of Lime by Limestone and Its Impact ...

· In the present study, laboratory experiments are conducted by changing the size, temperature, and time of exposure which help in understanding high-temperature behavior of limestone. With these inputs, along with theoretical calculations, a trial is conducted in a 160 t BOF by limestone addition and replacing equivalent amount of lime.

2 days ago

Microstructure and wear behaviour of AlCoCrFeNi-coated SS316L by ...

· The high-temperature wear analysis is carried out for two temperatures where the SWR and COF is estimated at different load, sliding velocity and sliding distance. ... Ghadami S. Abrasive wear behavior of nano-ceria modified NiCoCrAlY coatings deposited by the high-velocity oxy-fuel process. Mater Res Express. 2020;6:1250d6. doi: 10.1088/2053 ...

3 days ago

Study on preparation and mechanical properties of a new type of high ...

4 days ago

The Oxidation Behavior of Spark Plasma Sintered Ti-48Al Alloys - Springer

· Titanium aluminide (TiAl)-based alloys are lightweight intermetallic compounds used in critical high temperature structural applications, such as jet engine components. However, its applications are limited by its inadequate high temperature oxidation resistance. The as-cast microstructure is lamellar, with alternating plates of γ-TiAl and α2-Ti3Al phases. On the other hand, the spark plasma ...

3 days ago

Optimizing SLM process parameters using FE analysis for distortion ...

· J Mater Process Technol 2010; 210: 1624–1631. ... In-situ residual stress reduction, martensitic decomposition and mechanical properties enhancement through high temperature powder bed pre-heating of selective laser melted Ti6Al4V. Mater Sci Eng A 2017; 695: 211–220.

4 days ago

Materials | Free Full-Text | Exploring the Influence of ... - MDPI

· The present study examines the high-temperature (500–800 °C) oxidation behavior of Fe-10Cr-(3,5) Al alloys and studies the effect of nanocrystalline structure and Al content on their resistance to oxidation. The nanocrystalline (NC) alloy powder was synthesized via planetary ball milling. The prepared NC alloy powder was consolidated using spark plasma sintering to form NC alloys ...

Apr 8, 2024

Highest Melting Temperature

Generating Temperature Comparable to a Star — In the Lab

· This is one of the highest temperature thermal conductivity measurements ever reported. What tungsten looks like when it's melting. (Contributed photo) The new knowledge of the exact changes in temperature properties at such extremes opens avenues for the creation of materials designed to withstand intense heat fluxes, such as those essential ...

Apr 8, 2024

Direct observation of a magnetic-field-induced Wigner crystal

· Examining the δI dc map as a function of ν at the highest magnetic field and lowest temperature in our study (13.95 T, 210 mK electron temperature), we obtain precise measurements of the WC ...

5 days ago

Tungsten - Wikipedia

Of all metals in pure form, tungsten has the highest melting point (3,422 °C, 6,192 °F), lowest vapor pressure (at temperatures above 1,650 °C, 3,000 °F), and the highest tensile strength. Although carbon remains solid at higher temperatures than tungsten, carbon sublimes at atmospheric pressure instead of melting, so it has no melting point.

Europium in plagioclase-hosted melt inclusions reveals mantle melting ...

· Rare earth element in plagioclase-melt temperatures. ... Nielsen, R. L. et al. Melt inclusions in high-an plagioclase from the gorda ridge: an example of the local diversity of MORB parent magmas.

Apr 8, 2024

Copper - Wikipedia

Copper is a chemical element; it has symbol Cu (from Latin cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color.

High-entropy alloy - Wikipedia

High temperature and high ΔS mix also promote the formation of HEA because they significantly lower ΔG mix, making the HEA easier to form because it is more stable than other phases such as intermetallics. ... where T m is the average melting point of the elements in the alloy. Ω should be greater than or equal to 1.1, which means entropy ...

Disentangled Melt of Ultrahigh-Molecular-Weight Polyethylene ...

· A series of rheological studies have shown that slow heating of low-entangled nascent ultrahigh-molecular-weight polyethylene (UHMWPE) powders to temperatures above the equilibrium melting temperature causes the formation of “the disentangled nonequilibrium melt” due to consecutive detachment of chain stems from the edges of crystals keeping the largely intact low-entangled middle part of ...

Apr 8, 2024

Melting Point and Thermometer Calibration - ualberta.ca

· The typical melting behavior for most 1:1 two-compound mixtures will result in a depression of the melting temperature below that of the individual compounds and a broadening of the melting range. Different molar ratios of the two compounds give different melting temperatures, the lowest melting point of any mixture being the so-called eutectic temperature.

Apr 8, 2024

High Temperature Materials Pdf

Investigation on improving the comprehensive performance of ... - Nature

· The diffraction peaks of RES1.0 and RES2.0 corresponded to PDF cards of PDF#40-0384 and ... Application to combustion environments, High Temperature Corrosion and Materials Chemistry IV, pp. 535 ...

5 days ago

(PDF) Hot compression deformation characteristics of TiBw/Ti65 ...

· The high-temperature compression tests were carried out on the Gleeble 1500D dynamic thermomechani - cal simulator in the temperature range 1040–1100 °C

6 days ago

Study on preparation and mechanical properties of a new type of high ...

4 days ago

Crystals | Free Full-Text | High-Temperature Tribological Behavior of ...

3 days ago

Bond shear modulus in reinforced concrete at high temperature: A design ...

· Modeling bond behavior in either ordinary or high-temperature conditions requires the knowledge of bond shear modulus—called also slip modulus or simply bond stiffness—that has received so far scanty attention because of the greater interest for bond as a guarantee of equilibrium at the Ultimate Limit State (and in fire conditions) than as a means to guarantee both equilibrium and ...

2 days ago

High-Temperature Aluminum Alloys, David Dunand Research Group ...

· Al-Sc alloys have been demonstrated to exhibit high strength at ambient temperature due to the formation of L1 2 -ordered Al 3 Sc precipitates. On an atom-per-atom basis, Sc is the most potent strengthening addition to Al alloys. Additions of Li, the lightest of all metals, to Al result in an increase in strength due to both solid solution ...

Apr 8, 2024

Thermal Management System with Intrinsically High Thermal Conductive ...

Apr 8, 2024

Temperature effects in topological insulators of transition metal ...

· Our work reveals that, among the four 1 T ′ − M X 2 studied monolayers, MoSe 2 is a promising candidate for room-temperature applications because its band gap displays remarkable resilience against thermal expansion, while the topological order of WS 2 can be tuned under the combined influence of strain and temperature. Both materials represent novel examples of temperature-promoted ...

6 days ago

High Temperature Alloy Materials

High-entropy alloy - Wikipedia

High-entropy alloys (HEAs) are alloys ... until after 2004 when Yeh and his team of scientists built the world's first high-entropy alloys to withstand extremely high temperatures and ... late 1970s and early 1980s, though he did not publish until 2004. Unaware of Yeh's work, he did not describe his new materials as "high-entropy" alloys ...

Investigation on improving the comprehensive performance of ... - Nature

· Ceramic matrix composites (CMCs) are suitable materials to replace nickel-based alloys in aero-engine hot-end components 1,2,3.Among them, SiC f /SiC and Al 2 O 3f /Al 2 O 3 composites are up-to ...

5 days ago

$Kink bands promote exceptional fract...$

Kink bands promote exceptional fracture resistance in a NbTaTiHf ... - AAAS

· Theories for the high-temperature strength of these systems are based on the reduced mobility of edge dislocations and the pinning of screw dislocations by atomic jogs (15–18).However, no clear understanding exists for the high room-temperature toughness of 211 MPa⋅m 1/2 reported for the HfNbTaTiZr alloy ().Tensile tests of this material only add further mystery because the alloy exhibits ...

4 days ago

High-Temperature Aluminum Alloys, David Dunand Research Group ...

· An aluminum alloy with high temperature capability, therefore, is an attractive alternative to the titanium-based components currently used in the frontal sections of jet engines. ... Materials Science Forum 2006;519-521:1035. van Dalen ME, Dunand DC, Seidman DN. 2011;In Preparation. Krug ME, Dunand DC, Seidman DN. Acta Materialia 2011;59:1700 ...

Apr 8, 2024

Electro‐Thermo‐Mechanical Characterization of Shape Memory Alloy Wires ...

· Advanced Engineering Materials, part of the prestigious Advanced portfolio, is a comprehensive materials journal focusing on the latest breakthroughs in the field. The typical phase transformation temperatures of commercially available shape memory alloys (SMA) for actuator applications are in the region of 80 °C to 90 °C for austenite finish and around 60 °C...

4 days ago

Effect of Ta content on high temperature oxidation and hot ... - Springer

· 3.1 High temperature oxidation behaviour of alloys with different Ta contents 3.1.1 XRD phase analysis. The results of the XRD analysis of the oxidation products of alloys with various Ta contents after oxidation in air at 900 °C for 200 h are shown in Fig. 1.The phase diffraction peaks of alloy matrix are stronger; while, the oxide peaks are relatively weaker, which means that X-rays are ...

3 days ago

Advancement of microstructural evolution and ... - ScienceDirect

· Initial material. A commercial aluminum alloy was provided with a chemical composition consisting of Al-1.05Si-0.8Mg-0.66Mn-0.37Fe wt.% in the form of a rolled sheet in T6 condition with a thickness of 2 mm. ... Dynamic recrystallization mechanisms of 2195 aluminum alloy during medium/high temperature compression deformation. Materials Science ...

4 days ago

An additively manufactured precipitation hardening medium entropy alloy ...

· The idea of high entropy alloy (HEA), medium entropy alloy (MEA), and multi-principal-element alloy (MPEA) provides a new way for alloy design. In this work, we develop a Co 42 Cr 20 Ni 30 Ti 4 Al 4 quinary MEA which exhibits a superiority of mechanical properties over a wide temperature ranging from 77 to 873 K via selective laser melting (SLM) and post-heat treatment.

6 days ago

High Temperature Material Testing

Breaking Limits: The High Temperature Chamber for Extreme Testing ...

· Moreover, The data gathered from high temperature testing play a crucial role in the research and development of new materials and products. By understanding how materials behave under extreme conditions, Engineers can design components that are lighter, stronger, and more resilient, Driving advancements in technology and contributing to the development of more sustainable and efficient products.

6 days ago

Investigation on improving the comprehensive performance of ... - Nature

· The CMAS corrosion behavior of high-entropy (Y 0.2 Dy 0.2 Er 0.2 Tm 0.2 Yb 0.2) 4 Hf 3 O 12 hafnate material prepared by ultrafast high-temperature sintering (UHS). J. Eur.

5 days ago

Thermal Screening and Adiabatic Calorimetry Testing Methods

· Suspected high energetic materials; Best for homogenous or pure samples; ... The Carius Tube takes differential temperature measurements during throughout the testing lifecycle. Temperature variations between the oven temperature and the sample’s temperature are recorded and then plotted. These measurements provide data points that offer ...

3 days ago

Study on preparation and mechanical properties of a new type of high ...

· 2.1 Materials. The calcium–aluminate cement, with 72 h compressive strength of 43.3 MPa and a specific surface area of 431 m 2 /kg, was used. The Portland cement (P.II 52.5), with 28d compressive strength of 60.9 MPa and a specific surface area of 372 m 2 /kg, was used. The chemical composition testing standards of the two cements were in line with GB/T 205-2008, and the specific surface ...

4 days ago

Precision measurement in harsh conditions | GlobalSpec

· The materials of construction include high-temperature transducers made with hermetically sealed, all laser-welded Inconel housings, along with metal-jacketed, mineral-insulated cables. AMS-3946 series. The AMS-3946 non-contact, high-precision proximity measuring system is part of Kaman’s AMS-3000 series of sensors.

6 days ago

Mechanical Behaviour of As-Manufactured and Repaired Aligned ... - MDPI

· Furthermore, the fibres prove to have outstanding environmental resistance such as high-temperature tolerance, good acid and alkali resistance, and are non-toxic and easily processed [14,15]. Basalt is an abundant material, which leads to a cheap fibre price. ... (LEFM) Approach. American Society for Testing and Materials (ASTM): West ...

2 days ago

Advanced high temperature latent heat storage system - design and test ...

· In 2008, a test storage using sodium nitrate as phase change material (PCM) with a melting temperature of 306 °C was operated in a 5 kW laboratory loop. The designed heat transfer rate was achieved and after 172 cycles no degradation was observed. ... phase change material, high temperature: Veranstaltungstitel: Effstock 2009 ...

4 days ago

High-Temperature Aluminum Alloys, David Dunand Research Group ...

Apr 8, 2024

High Temperature Materials Journal

The Role of Grain Size in Achieving Excellent ... - ScienceDirect

· The mechanical behavior of metallic materials at high temperatures is complex due to the concurrent motion of multiple defects, including dislocations and vacancies, which become active both mechanically and thermally. ... Journal of Materials Science, 48 (13) (2013), pp. 4653-4660. CrossRef View in Scopus Google Scholar [8]

5 days ago

Investigation on improving the comprehensive performance of ... - Nature

· The CMAS corrosion behavior of high-entropy (Y 0.2 Dy 0.2 Er 0.2 Tm 0.2 Yb 0.2) 4 Hf 3 O 12 hafnate material prepared by ultrafast high-temperature sintering (UHS). J. Eur.

5 days ago

Synergic effects of scanning pattern and heat treatment on the ...

· The synergic effects of scanning pattern types and subsequent heat treatment on the room- and elevated-temperature tensile properties of powder bed fusion-laser beam additively manufactured Hastelloy X Ni-based superalloy are investigated. The samples were built via bi-directional and chessboard scanning patterns. The as-built microstructures comprised dislocation and solidification cells ...

1 day ago

Rapid, Direct‐Fabrication of Thermochromic Ceramic Composite Sensors ...

· Advanced Engineering Materials, part of the prestigious Advanced portfolio, is a comprehensive materials journal focusing on the latest breakthroughs in the field. An inorganic, high temperature (∽600°C) thermochromic sensor is synthesized from a chemically bonded ceramic composite. The ceramic composite is composed of thermochromic 10 wt ...

3 days ago

Crystals | Free Full-Text | High-Temperature Tribological Behavior of ...

3 days ago

Highly insulating polymeric aerogels derived from hollow material ...

· Developing aerogel materials that combine high-thermal-insulation properties with excellent mechanical robustness is of great interest for real applications in various conditions with diverse temperature and humidity ranges. However, many aerogel materials currently available exhibit limited thermal insulation capabilities, thereby hindering the development of materials with specific functions ...

6 days ago

Thermal Management System with Intrinsically High Thermal Conductive ...

Apr 8, 2024

Ultrahigh energy storage in high-entropy ceramic capacitors with ... - AAAS

· Benefiting from the synergistic effects, we achieved a high energy density of 20.8 joules per cubic centimeter with an ultrahigh efficiency of 97.5% in the MLCCs. This approach should be universally applicable to designing high-performance dielectrics for energy storage and other related functionalities.

4 days ago

High Temperature Withstand Materials

A dual-layer ceramic coating based on silicon carbide and ... - Springer

· The quest for materials capable of enduring extreme high-temperature environments remains a longstanding and formidable challenge in the field of materials science. ... It can withstand the high temperatures generated during the steelmaking process and efficiently transfer the electromagnetic energy required for the smelting and refining of ...

1 day ago

How to Choose a High Temperature Thread Sealant

· High temperatures can spell disaster for your projects. You can ensure your material’s integrity by choosing a quality sealant designed to withstand the heat. At Silicone Depot, we offer a wide selection of high-temperature sealants, including this Hi-Temp Red & Blue Sealant. Browse our silicone sealants or call us at 812-824-8000 for help ...

3 days ago

Investigation on improving the comprehensive performance of ... - Nature

· The CMAS corrosion behavior of high-entropy (Y 0.2 Dy 0.2 Er 0.2 Tm 0.2 Yb 0.2) 4 Hf 3 O 12 hafnate material prepared by ultrafast high-temperature sintering (UHS). J. Eur.

5 days ago

High-Temperature Aluminum Alloys, David Dunand Research Group ...

Apr 8, 2024

What are the application scenarios of High temperature resistant labels ...

· High temperature resistant labels, often referred to as heat resistant labels or heatproof stickers, are a critical component in various industrial applications. These specialized labels are engineered to withstand extreme temperatures, some up to +388°C (730.4°F), and are essential for products and components exposed to high heat during manufacturing processes or in their operational ...

5 days ago

Rapid, Direct‐Fabrication of Thermochromic Ceramic Composite Sensors ...

· An inorganic, high temperature (∽600°C) thermochromic sensor is synthesized from a chemically bonded ceramic composite. The ceramic composite is composed of thermochromic 10 wt.% chromium-doped alumina (Cr:Al 2 O 3) powder blended with a low-reacting temperature (around 250°C) phosphate binder, Al(H 2 PO 4) 3, (ADP). It has been reported ...

3 days ago

High-Temperature Wire & Cable | Sycor Technology

· The high-temperature wire family includes, but isn't limited to, thermocouple wire, TCGT, MGT-1000, SEW and SRML products. These high-temperature silicone and Teflon cables operate with temperature ratings ranging from a low of 90°C up to +450°C. Our team's high-temperature wire can be used for a variety of applications such as cooking and ...

6 days ago

An conductive ink based on silver oxide complex for low-temperature ...

· Journal of Materials Science: Materials in Electronics - In the context of advancing flexible electronic technologies, conductive ink has garnered significant scholarly interest. ... PI, or polytetrafluoroethylene have the ability to withstand high temperatures, which is a major drawback that limits the large-scale production and application of ...

3 days ago

High Temperature And Materials Science

Investigation on improving the comprehensive performance of ... - Nature

· The CMAS corrosion behavior of high-entropy (Y 0.2 Dy 0.2 Er 0.2 Tm 0.2 Yb 0.2) 4 Hf 3 O 12 hafnate material prepared by ultrafast high-temperature sintering (UHS). J. Eur.

5 days ago

Ultrahigh energy storage in high-entropy ceramic capacitors ... - Science

· In the past decade, efforts have been made to optimize these parameters to improve the energy-storage performances of MLCCs. Typically, to suppress the polarization hysteresis loss, constructing relaxor ferroelectrics (RFEs) with nanodomain structures is an effective tactic in ferroelectric-based dielectrics [e.g., BiFeO 3 (7, 8), (Bi 0.5 Na 0.5)TiO 3 (9, 10), and BaTiO 3 (2, 11)] owing to the ...

4 days ago

Electro‐Thermo‐Mechanical Characterization of Shape Memory Alloy Wires ...

· Intelligent Materials Systems Lab, Center for Mechatronics and Automation Technology- ZeMA gGmbH, 66121 Saarbrücken, Germany. Intelligent Materials Systems Lab, Department of Systems Engineering, Department of Material Science and Engineering, Saarland University, 66123 Saarbrücken, Germany. Search for more papers by this author

4 days ago

Enhancing the high-temperature corrosion resistance of HVOF-sprayed ...

· The ultimate failure of blades can be attributed to the combination of high-temperature corrosion invasion and fatigue injury [1, 2]. It is found that high-temperature corrosive attack induces material degradation and provides numerous defects for fatigue crack nucleation and growth, which significantly limits the lifetime of materials [2]. In ...

6 days ago

Enhancing Conversion Kinetics through Electron ... - Wiley Online Library

· Advanced Science is a high-impact, interdisciplinary science journal covering materials science, physics, chemistry, medical and life sciences, and engineering. Abstract Room-temperature sodium–sulfur (RT Na/S) batteries have received increasing attention for the next generation of large-scale energy storage, yet they are hindered by the severe dissolution...

6 days ago

Temperature effects in topological insulators of transition metal ...

6 days ago

Materials | Free Full-Text | Medium- and High-Entropy Rare Earth ... - MDPI

· The development of a new generation of solid particle solar receivers (SPSRs) with high solar absorptivity (0.28–2.5 μm) and high infrared emissivity (1–22 μm) is crucial and has attracted much attention for the attainment of the goals of “peak carbon” and “carbon neutrality”. To achieve the modulation of infrared emission and solar absorptivity, two types of medium- and high ...

3 days ago

Two-Step High-Temperature Calcination of BiVO4/TiO2/Ti3C2 ...

· Two-Step High-Temperature Calcination of BiVO 4 /TiO 2 /Ti 3 C 2 Nanocomposites as a High-Efficiency Photoelectrochemical Platform for Enhanced Photovoltaic Performance Lei Ding Institute of Materials for Energy and Environment, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, P.R. China

6 days ago

High Temperature Changes In Components

Investigation on improving the comprehensive performance of ... - Nature

5 days ago

Thermal Management System with Intrinsically High Thermal Conductive ...

Apr 8, 2024

Study on preparation and mechanical properties of a new type of high ...

4 days ago

Bio-inspired fabrication of “brick-and-mortar ... - Springer

· The application of carbon fiber–reinforced polymer (CFRP) composites in high-temperature environments was hindered by the bottleneck of poor interfacial performance between carbon fiber and epoxy resin at elevated temperatures. In this work, a sophisticated “brick-and-mortar” interphase, inspired by the structure of nacre, was produced through an industrialized roll-to-roll process. The ...

4 days ago

Radiation effects on crystals and oscillators

· Radiation, especially high-level radiation, has a significant impact on the performance of crystals and oscillators. Ionizing radiation causes atomic ionization, while non-ionizing radiation affects components through heating effects. Radiation can lead to various damages, resulting in frequency changes and performance degradation. Mitigation strategies include selecting radiation-tolerant ...

5 days ago

Newton's Law of Cooling | Brilliant Math & Science Wiki

· Newton's law of cooling states that the rate of heat loss of a body is proportional to the difference in temperatures between the body and its surroundings. As such, it is equivalent to a statement that the heat transfer coefficient, which mediates between heat losses and temperature differences, is a constant. This condition is generally true in thermal conduction (where it is guaranteed ...

4 days ago

High-Temperature Aluminum Alloys, David Dunand Research Group ...

· An aluminum alloy with high temperature capability, therefore, is an attractive alternative to the titanium-based components currently used in the frontal sections of jet engines. Based on the behavior of nickel-base superalloys, which resist degradation of mechanical properties to approximately 75% of their absolute melting temperature, it is ...

Apr 8, 2024

The Heat is On: How AI Workloads Intensify Data Center Temperatures

· High or fluctuating temperatures and poor humidity control, common issues with traditional cooling methods, can significantly reduce the lifespan of data center equipment. Servers, hard drives, and other critical components are sensitive to temperature changes and can suffer from accelerated wear when operated in suboptimal conditions.

Apr 8, 2024

High Temperature Corrosion Of Materials

Investigation on improving the comprehensive performance of ... - Nature

The two types of high-entropy multiphase coating materials from this study exhibited excellent corrosion resistance at 1400 °C, especially RES0.5, whose corrosion depth was only 21.8 μm after 20 ...

Effect of Ta content on high temperature oxidation and hot corrosion ...

In order to elucidate the mechanism of the effect of Ta content on the high temperature behaviour of the alloys, the high temperature oxidation and thermal corrosion experiments were carried out on the three alloys with different Ta contents (2.72, 3.10 and 4.00 wt.%). The results of high temperature oxidation and hot corrosion show that because Ta has a higher valence state than Al, it can ...

Enhancing the high-temperature corrosion resistance of HVOF-sprayed ...

The ultimate failure of blades can be attributed to the combination of high-temperature corrosion invasion and fatigue injury [1, 2]. It is found that high-temperature corrosive attack induces material degradation and provides numerous defects for fatigue crack nucleation and growth, which significantly limits the lifetime of materials [2]. In ...

Research on Electrochemical Corrosion and Passive Behavior ... - Springer

The anti-corrosion property of materials is a crucial parameter in industrial environments for assessing the durability of equipment ... M. Schneider, S. Karafiludis, and G. Laplanche, High Temperature Oxidation in Dry and Humid Atmospheres of the Equiatomic CrMnFeCoNi and CrCoNi High- and Medium-entropy Alloys, Oxid. Met., 2021, 95, p 105–133.

Atomic-Scale Insights into Flow-Accelerated Corrosion of Carbon Steel

The corrosion rate of the corrosion coupons was measured by analyzing the weight loss data after the 500 h corrosion test. Under static water conditions, the corrosion rate was 0.44 μg/cm 2 h. However, under dynamic water conditions at 5 m/s, the corrosion rate drastically accelerated to 5.20 μg/cm 2 h, approximately 12 times higher.

Friction, Wear, and Corrosion Behavior of ... - ScienceDirect

The reciprocating ball disk friction and wear studies were conducted on Brooke UMT-2 friction and wear testing equipment. The trial temperature is room temperature, the friction mode is dry sliding, the experimental load is 4 N, 8 N, 12 N, 16 N, and 20 N, the stroke is 8 mm, the speed is 10 mm/s, the test time is one hour, and the tester automatically records the instantaneous friction ...

Synergistic Effect of CO2 in Accelerating the Galvanic Corrosion of ...

Rechargeable alkali metal–CO2 batteries, which combine high theoretical energy density and environmentally friendly CO2 fixation ability, have attracted worldwide attention. Unfortunately, their electrochemical performances are usually inferior for practical applications. Aiming to reveal the underlying causes, a combinatorial usage of advanced nondestructive and postmortem characterization ...

[PDF] Characteristics and hot corrosion behavior of NiCrAlY metal ...

The hot corrosion experiments of René N5 alloy coated with three different NiCrAlY metal bonding layers are carried out, that the layers are prepared by different methods (APS, HVAF and MIP). Compared with bare René N5 alloy samples, the hot corrosion resistance of coated samples is improved. It can be attributed to the small internal stress of the surface oxide layer on the coating sample ...

High Temperature Phase Change Materials

Thermal Management System with Intrinsically High Thermal Conductive ...

Apr 8, 2024

Layer-by-layer phase transformation in Ti3O5 revealed by ... - Nature

· Interestingly, the isostructural phase reconstruction from the low-temperature semiconducting β-Ti 3 O 5 phase to the high-temperature metallic λ-Ti 3 O 5 phase observed in recent experiments is ...

6 days ago

Mesoporous molecular sieve confined phase change materials with high ...

· The biggest challenge for organic phase change materials (PCMs) used in cold energy storage is to maintain high heat storage capacity while reducing the leakage risk of PCMs during the phase transition process. This is crucial for expanding their applications in the more demanding cold storage field. In this study, novel form-stable low-temperature composite PCMs are prepared with mesoporous ...

4 days ago

Investigation on improving the comprehensive performance of ... - Nature

· Phase structure and composition of four high-entropy ceramic blocks. The XRD patterns of four types of high-entropy ceramics are illustrated in Fig. 1.RES0.5 exhibited the peaks of X2-type ...

5 days ago

Multidimensional Data Encoding Based on ... - Wiley Online Library

· Third, when compared to previous reports where time-dependent luminescent changes were utilized to accomplish 4D data storage, [35, 41-43] the use of temperature as the fourth dimension makes the readout process reproducible regardless of the operation conditions (e.g., temperature scanning direction and rate, external temperature).

4 days ago

Sustainability | Free Full-Text | The Thermo-Phase Change Reactivity of ...

· This factor can increase stress yield but also maintain a stable composite material. The high thermal resistance of gypsum is its most prominent feature; this can also increase the setting time of the composite. ... to an increased endothermic peak, as shown with S14. This indicated the phase change of the materials. As the temperature ...

4 days ago

Study on the melting characteristics of composite phase change ...

· The influence of gravity on the thermal storage properties of composite phase change materials doped with graphene nanoparticles (GNP-PCM) was investigated in this study by simulation. Under 2 g , 4 g , 6 g , 8 g , and 10 g gravity conditions, the melting time is reduced by 14.86%, 27.05%, 33.31%, 37.00%, and 39.79%, respectively, compared with normal gravity conditions.

Apr 8, 2024

State of the art review on phase change thermal energy storage ... - CIP

· Abstract. Abstract: As one of the main directions of energy storage technology, the phase change thermal energy storage technology is widely used in renewable energy utilization, i. e. solar and wind power generation, waste heat recovery, and distributed energy system. Based on the analysis of relevant literatures, phase change materials (PCM ...

Apr 8, 2024

High Temperature Thermoplastic Materials

Alternative Concepts for Extruded Power Cable Insulation: from ...

· In particular, we will cover (1) how click chemistry type reactions can be used to form thermoset-type covalent networks without the release of byproducts, (2) how higher-melting polymers can be used to introduce a physical network and thus design thermoplastic insulation materials, and (3) how adaptable networks can be used to create thermoset-like materials that can be reprocessed similar to ...

3 days ago

Preparation and properties of silicone thermoplastic ... - Springer

· As a material with polysiloxane as the main chain, silicone rubber (SR) has many excellent characteristics. Its good high temperature resistance makes it occupy a leading position in applications such as high temperature equipment seals [1, 2].Its excellent insulation makes it widely used in high-voltage power grid insulators.

5 days ago

JEC World 2024 highlights: Thermoplastic composites, CMC and novel ...

· Exhibiting in the Startup Booster area of the show, High Temperature Material Systems (HTMS, Bristol, U.K.) was founded in 2021 to develop bespoke aluminum oxide matrix CMC materials that can withstand temperatures of 300-1000°C. Products developed to date include:

5 days ago

Investigation on improving the comprehensive performance of ... - Nature

· The CMAS corrosion behavior of high-entropy (Y 0.2 Dy 0.2 Er 0.2 Tm 0.2 Yb 0.2) 4 Hf 3 O 12 hafnate material prepared by ultrafast high-temperature sintering (UHS). J. Eur.

5 days ago

Recyclable and Biobased Vitrimers for Carbon Fibre-Reinforced ... - MDPI

· Carbon fibre-reinforced composites (CFRC) are advanced non-metallic composite materials constituting polymer resin and carbon fibres, in which the carbon fibres act as the reinforced materials and the polymer resin acts as the matrix holding the fibres [1,2].Thanks to their high stiffness, lightweight, and excellent fatigue resistance, CFRCs have been increasingly utilised in aerospace ...

6 days ago

Optimising plastic moulding with latest temperature control ...

· Temperature control and stability have also a direct effect on cycle times and output. Manufacturers’ economic success depends to a high degree on the development of reliable production, and the ability to efficiently control and maintain the right process temperatures within the various stages of the process is critical to achieve this.

4 days ago

Biodegradability | Definition, Process, Examples, Plastics, Composting ...

· Several environmental factors affect the efficiency and rate of biodegradation, including the types of saprotrophic organisms present; the temperature, humidity, pH levels, and amount of sunlight in the environment; and the nature of the material itself. Organic materials generally degrade more quickly when a variety of microorganisms are present, which often occurs in aerobic conditions of ...

4 days ago

Effect of slit size on low‐velocity impact behavior of composite ...

· Short fiber reinforced polymers (SFRP) based on unidirectionally arrayed chopped strands (UACS) offer exceptional formability and great mechanical properties.

Apr 8, 2024

High Temperature Ceramic Cloth Properties

Alumina Ceramic Textiles as Novel Bacteria‐Capturing Wound Dressings ...

· A foldable Al 2 O 3-stabilized ZrO 2 air filter paper was developed for removing particulate matter from exhaust gases at high temperature. [21-24, 32, 33] However, these substrates are often mechanically rigid, highly brittle and hence not the ideal fit for developing wound dressings. Here, novel flexible ceramic textiles are suggested to be a ...

3 days ago

Investigation on improving the comprehensive performance of ... - Nature

· Among them, SiC f /SiC and Al 2 O 3f /Al 2 O 3 composites are up-to-date candidates with excellent mechanical properties, low density, and high-temperature phase stability 4,5,6.

5 days ago

Ballistic resistance analysis of hard ceramic combined with aluminum ...

· This material model was chosen due to its ability to capture large deformations at a high strain rate, and it also can capture the damage evolution using Cockcroft–Latham criterion. The material used for FFP and RFP was the same that was heat-treated mild steel ST-37 with Young’s modulus of 200 GPa, Poisson’s ratio of 0.3, the density of 7830 kg/m 3 , and yield stress of 300 MPa.

3 days ago

Ultrahigh energy storage in high-entropy ceramic capacitors with ... - AAAS

· The BTO-based ceramics show gradually reduced hysteresis loss, high P m, and nearly eliminated P r in P-E loops, i.e., from FE features typical of a BTO ceramic with a large P r (12.0 μC cm −2) to relaxor features with a sharply reduced P r (3.3 μC cm −2) in the ceramic with S config = 1.25R and further reduction of P r (1.3 μC cm −2) in the ceramic with S config = 2.38R, which can be ...

4 days ago

CCEWOOL ceramic fiber insulation

· Ceramic fiber insulation materials can be widely used in high-temperature environments ranging from 600°C to 1400°C. Their unique properties make them an ideal choice for industrial furnaces, the petrochemical industry, aerospace, and automotive exhaust systems. ... CCEWOOL Ceramic Fiber Cloth is a woven fabric made from our high quality ...

3 days ago

What are the Different Types of Ceramics? Which is the Best?

· This porcelain is robust, brittle, heavy, and can withstand high temperatures in general. Chimneys, fireplaces, and walls are all suitable places to use this ceramic. They’re frequently utilized in landscaping as well. 4. Silicon. Silicon is another prominent ceramic material that is generally regarded as superior due to its chemical properties.

5 days ago

Weakening Ionic Coordination for High Ionic Conductivity Composite ...

· The special chemistry of N,N-dimethylformamide (DMF)-solvated Li+ [Li(DMF)x]+ migration results in polyvinylidene fluoride (PVDF)-based solid polymer electrolytes exhibiting high ionic conductivities. Incorporating ceramic fillers into PVDF electrolytes can further enhance the ionic conductivities. However, there is limited understanding of the desolvation process of Li+ during its transport ...

4 days ago

High Temperature Fabrics – ZAR-TECH

· High Temperature Fabrics & Textiles. We have inventories or can custom make most refractory textile products. We carry Unifrax’s and 3M’s complete line of fabrics including ropes, cloths, tapes and yarns. These fabrics can be designed for use at temperatures ranging from 500ºF to 2000°F. They are also capable of being fabricated into ...

Apr 8, 2024

High Temperature Materials Can Be Found In

Investigation on improving the comprehensive performance of ... - Nature

· We found that the distribution of various rare earth elements (REEs) in microns is very uniform. ... Application to combustion environments, High Temperature Corrosion and Materials Chemistry IV ...

5 days ago

Study on preparation and mechanical properties of a new type of high ...

· It was found that high temperature resistance was the best when calcium–aluminate cements and corundum were chosen together after comparing M 1, M 2 and M 2, M 4. 3.2.5 Destruction pattern. The tensile damage of the specimen is shown in Fig. 16, and the damage patterns of M 1 after heating at different temperatures are shown in Fig. 16a. It ...

4 days ago

High-entropy alloy - Wikipedia

Al 0.5 CrFeCoNiCu was found to have a high fatigue life and endurance limit, ... The high-temperature exposure resulted in growth of the γ′ particles and at temperatures higher than 700 °C, additional precipitation of γ′ was observed. ... The high-entropy materials have high potential for a wider range of energy applications ...

Preparation and properties of silicone thermoplastic ... - Springer

5 days ago

Precision measurement in harsh conditions | GlobalSpec

· They can withstand pressures up to 5,000 psi. Resolution and repeatability are comparable to Kaman’s conventional line of high-precision systems. The materials of construction include high-temperature transducers made with hermetically sealed, all laser-welded Inconel housings, along with metal-jacketed, mineral-insulated cables. AMS-3946 series

6 days ago

High-Temperature Aluminum Alloys, David Dunand Research Group ...

Apr 8, 2024

Metals | Free Full-Text | Review on the Tensile Properties and ... - MDPI

· The advent of high-entropy alloys (HEAs) provides new possibilities for the metallurgical community. CoCrFeNi-based alloys have been widely recognized to demonstrate superior mechanical properties, amongst the high-entropy alloy systems; in particular, they possess an outstanding tensile ductility and work-hardening capacity. Additive manufacturing (AM) uses a layer-by-layer material ...

6 days ago

Thermal Management System with Intrinsically High Thermal Conductive ...

Apr 8, 2024