
Zirconium silicide ZrSi2
Other name:zirconium disilicide
CAS no. : 12039-90-6
Purity:99%
Particle size:325mesh
Description: Gray square crystal powder
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EINECS no. : 234-911-1
Molecular weight: 147.39
Density (g/mL,25℃) : 4.88
Melting point (oC) : 1620
Lattice constants: A =0.372nm, B =1.476nm, c=0.367nm.
Microhardness (kg/mm2) : 1063
Heat of formation (kJ/mol) : 62.8
Functions and uses: As fine ceramic raw material powder, used for semiconductor film production crucible, Carbon ceramic brake pads, brake discs. The mass fraction of zirconium disilicate is 10 ~ 15% When zirconium disilicate is added to ceramic matrix composites, the sintering temperature can be reduced obviously.
Study on elasticity and anisotropy of Zirconium silicate
The compounds formed by metal and silicon are metallic silicides, which are divided into two categories: 1 Refractory metal silicides refer to the silicides of IVB,VB and VIB group of elements in periodic table, such as titanium silicate, Zirconium silicate, tantalum silicate, tungsten silicate, 2 noble and near-noble metal silicides, silicide targets, Platinum silicate, cobalt silicate, etc. For a while, metallic silicides are relatively hard substance, Metallic luster like metal, high conductivity, positive resistance humidity coefficient, in most cases Lower magnetic, refractory metal silicides have high melting point, hardness and compression strength, high temperature High creep strength, medium density and tensile strength as well as good mechanical properties at temperature The reaction with silicon reduces the activity of the metal, so the silicides are quite chemically stable. Refractory metal silicides with high silicon content have good corrosion resistance and oxidation resistance at room temperature and high temperature.
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