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aries
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what is high temperature material
What is high temperature material
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SUMMARY
High temperature materials are defined as substances that retain their properties at elevated temperatures without losing structural integrity. Key examples include refractory metal alloys such as tungsten (W), rhenium (Re), molybdenum (Mo), tantalum (Ta), niobium (Nb), and their carbides. Certain forms of carbon and ceramics also qualify, with specific silicides like MoSi2 and Mo5Si3 recognized for their high-temperature capabilities. The practical application of these materials is often limited to a homologous temperature of 0.35-0.40, depending on stress levels, with a maximum service temperature of 0.3 Tm under high stress.
PREREQUISITES- Understanding of refractory metal properties and applications
- Knowledge of high-temperature ceramics and their classifications
- Familiarity with silicide compounds and their characteristics
- Basic principles of material science related to thermal properties
- Research the properties and applications of tungsten and its alloys
- Explore the characteristics of high-temperature ceramics and their uses
- Investigate the performance of silicides like MoSi2 in high-temperature environments
- Study the impact of homologous temperature on material performance under stress
Material scientists, engineers in aerospace and automotive industries, and professionals involved in high-temperature applications will benefit from this discussion.
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Cyrus
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Usually its a material that exhibits certain properties, or maintains its properties, at very high temperatures without compromising the integrity of the material.
Two special cases: Unobtainium and Utopium, which have any desired property under any condition. 
Two special cases: Unobtainium and Utopium, which have any desired property under any condition. - #3
Astronuc
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Please elaborate on the context or application.
For example, alloys of the refractory metals W, Re, Mo, Ta and Nb, as well as their carbides, may be considered high temperature materials.
Certain forms of carbon may be considered a high temperature material.
http://www.unitedcomposites.net/usapages/hightempperformancecomposites2.htm#HIGH RANGE TEMPERATURES
Certain ceramics maybe be considered hgih temperature materials, but some are useful only as insulators, while others can be used as structural materials.
Some silicides, such as MoSi2, Mo5Si3, and Mo5SixBy (where x+y=3), are considered high temperature materials.
http://www.ornl.gov/sci/bes/BES/abad/alloying.htm
http://www.ms.ornl.gov/htmlhome/default.htm
http://www.ornl.gov/sci/bes/BES/abad/alloyingta.htm
http://www.external.ameslab.gov/news/Inquiry/98/dragon.html
High temperature structural materials may be used up to a homologous temperature of 0.35-0.40 depending on stress levels. At high stresses, practical application may limit service to 0.3 Tm.
For example, alloys of the refractory metals W, Re, Mo, Ta and Nb, as well as their carbides, may be considered high temperature materials.
Certain forms of carbon may be considered a high temperature material.
http://www.unitedcomposites.net/usapages/hightempperformancecomposites2.htm#HIGH RANGE TEMPERATURES
Certain ceramics maybe be considered hgih temperature materials, but some are useful only as insulators, while others can be used as structural materials.
Some silicides, such as MoSi2, Mo5Si3, and Mo5SixBy (where x+y=3), are considered high temperature materials.
http://www.ornl.gov/sci/bes/BES/abad/alloying.htm
http://www.ms.ornl.gov/htmlhome/default.htm
http://www.ornl.gov/sci/bes/BES/abad/alloyingta.htm
http://www.external.ameslab.gov/news/Inquiry/98/dragon.html
High temperature structural materials may be used up to a homologous temperature of 0.35-0.40 depending on stress levels. At high stresses, practical application may limit service to 0.3 Tm.
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