Product Name: Chromium Disilicide (CrSi2) 
Specification: 0.8-10um (D50) 
Appearance: Irregular 
Color: Black Grey 
Features: Good mechanical performance and high temperature stability, high electrical resistivity, low temperature coefficient of resistance 
Usage: High tech fields such as research laboratories, information and communication, aerospace, military, coatings, inks, rubber and plastic, ceramics, textiles, cosmetics, pharmaceuticals, batteries, environmental protection, solar energy, etc

中文名：硅化铬
English name: Chromium silica 
CAS：12018-09-6 
Density (g/mL, 25/4 ℃): 5.5 
Melting point: 1490 º C 
Molecular formula: CrSi2 
Molecular weight: 108.16700 
Accurate quality: 107.89400 
Appearance: Silver to black powder, odorless, insoluble in water, soluble in hydrochloric acid and hydrofluoric acid. 
Stability: Will not decompose when used and stored according to specifications. Chromium silicide is a gray tetragonal prismatic crystal that is insoluble in water, sulfuric acid, and nitric acid, but soluble in hydrochloric acid and hydrofluoric acid. Stable in air at room temperature; At 100 ℃, the surface is oxidized; At 00 ℃, 4Chemicalbook reacts violently with chlorine to produce chromium trichloride and silicon tetrachloride. 
Performance: Chromium silicide thin film has high resistivity and low temperature coefficient of resistance. Gray cubic crystal, hexagonal crystal system, a=04422nm, c=06351nm, melting point close to 1550 ℃, high resistivity of chromium silicide film, low temperature coefficient of resistance. Chromium silicide thin films have high electrical resistivity and low temperature coefficient of resistance. 
Preparation process: 
After mixing silicon powder with chromium powder, it can be calcined in hydrogen gas at 900-1100 ℃ and cooled. Alternatively, a mixture of chromium powder and silicon powder can be uniformly mixed with a mixture of silicon dioxide powder and silicon powder, and then calcined in a hydrogen gas stream. The volatile SiO formed by SiO2 and Si powder can escape along with Na and K in the raw material to obtain CrSi2. 
2. Chromium and silicon powder can be melted or sintered together in vacuum or under hydrogen protection to obtain Cr3Si (cubic crystal) with a melting point of about 1710 ℃, Cr5Si3 (tetragonal crystal, melting point of about 1600 ℃), CrSi (cubic crystal, melting point of about 1600 ℃), CrSi2, and Cr3Si2.