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外観
黒灰色の粉末
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溶解性
水及びエタノールにほとんど溶けない。
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化学的特性
Molybdenum silicide is dark-gray, crystalline powder. Not affected by air upto 1648°C. Not attacked by most inorganic acidsincluding aqua regia, but very soluble in hydrofluo-ric and nitric acids. Has high stress-rupture strength.
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物理的性質
The compound is thermally
stable in air up to 1000°C.
Corrosion resistant to molten
metals such as Zn, Pd, Ag, Bi,
and Rb. Corroded by liquid
metals Mg, Al, Si, V, Cr, Mn, Fe,
Ni, Cu, Mo, and Ce.
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使用
MOLYBDENUM SILICIDE can be considered as an electrically conducting ceramic with primary use in heating elements operating at temperatures above 1,500℃ in air. It is also considered as a material for very high temperature structural applications.
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定義
MOLYBDENUM SILICIDE is A cermet.
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一般的な説明
This product has been enhanced for energy efficiency.
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危険性
MOLYBDENUM SILICIDE is Toxic material.
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工業用途
High-temperature silicides are a new class of materials with potential applications in the temperature range 1200 to 1600 C.The silicide that seems most promising is molybdenum disilicide (MoSi2) because of its high melting temperature (2200 C) and excellent oxidation resistance. It has a tetragonal crystal structure. A major problem is its absence of ductility at temperatures up to 1000 C. It also has poor high-temperature strength due to the presence of a grain boundary silicon-rich phase that may become viscous at very high temperatures. Recent research has shown that this problem may be solved by the addition of carbon to the material.
