What is high temperature material

In summary, high temperature materials are materials that can maintain their properties at very high temperatures without losing their integrity. Examples include alloys of refractory metals and their carbides, certain forms of carbon, ceramics, and silicides. These materials are useful in various applications such as structural materials and insulators, and can withstand temperatures up to 0.35-0.40 times their melting point.
  • #1
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what is high temperature material
 
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  • #2
Usually its a material that exhibits certain properties, or maintains its properties, at very high temperatures without compromising the integrity of the material.


:rofl: Two special cases: Unobtainium and Utopium, which have any desired property under any condition. :tongue2:
 
  • #3
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 [Broken]
http://www.ornl.gov/sci/bes/BES/abad/alloyingta.htm

http://www.external.ameslab.gov/news/Inquiry/98/dragon.html [Broken]

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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1. What is considered a high temperature material?

A high temperature material is any material that can withstand extremely high temperatures without significant degradation or loss of structural integrity. Generally, materials that can withstand temperatures above 1000 degrees Celsius are considered high temperature materials.

2. What are some common high temperature materials?

Common high temperature materials include metals such as titanium and tungsten, ceramics like alumina and silicon carbide, and composites like carbon-carbon and metal-ceramic mixtures. Other materials that can withstand high temperatures include refractory materials like graphite and refractory metals like molybdenum and tungsten.

3. What are the properties of high temperature materials?

High temperature materials typically have high melting points, good thermal stability, and excellent mechanical strength at high temperatures. They may also have low thermal expansion, good resistance to thermal shock, and high corrosion resistance in harsh environments. Some high temperature materials may also exhibit unique properties, such as superconductivity or shape memory effects.

4. What industries use high temperature materials?

High temperature materials are used in a variety of industries, including aerospace, automotive, energy production, and electronics. They are also commonly used in high-temperature applications such as furnaces, gas turbines, and rocket engines. Medical and military industries also use high temperature materials for specialized applications.

5. How are high temperature materials tested and evaluated?

High temperature materials are tested and evaluated using various methods, including tensile and compression testing, thermal cycling, creep and fatigue testing, and thermal conductivity measurements. These tests help determine the material's mechanical properties, thermal stability, and ability to withstand high temperatures for extended periods. High temperature materials are also evaluated for their corrosion resistance, wear resistance, and other specific properties relevant to their intended applications.

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