Molybdaendisilicid Chemische Eigenschaften,Einsatz,Produktion Methoden
R-S?tze Betriebsanweisung:
R20/21/22:Gesundheitssch?dlich beim Einatmen,Verschlucken und Berührung mit der Haut.
S-S?tze Betriebsanweisung:
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
Chemische Eigenschaften
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.
Physikalische Eigenschaften
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.
Verwenden
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.
Definition
MOLYBDENUM SILICIDE is A cermet.
Allgemeine Beschreibung
This product has been enhanced for energy efficiency.
Hazard
MOLYBDENUM SILICIDE is Toxic material.
Industrielle Verwendung
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 (MoSi
2) 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.
Molybdaendisilicid Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
