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CrB2 Chromium Boride Powder
Product Name: chromium diboride
Chromium diboride: b2cr
Molecular weight: 73.62
English Name: chromium border (CrB2)
Flash point: melting point: 1550 ℃
Molecular weight: 112.9969
Properties: insoluble in water, soluble in molten sodium peroxide
Application: used as wear-resistant, high temperature oxidation resistant coating and neutron absorption coating in nuclear reactor. It is used for ceramics. It is melt sprayed on metal and ceramic surfaces to form wear-resistant and corrosion-resistant films. Used for spraying semiconductor film. Chrome borate and alumina sintered or hot pressed in micro oxidation atmosphere have practical value of high temperature wear resistance.
Pure metal process: chromium and an appropriate amount of boron powder are heated at 1600 ℃ in vacuum or inert atmosphere or sintered at 1150 ℃ for 48 ~ 72h. Chromium borate CRB, cr2b, cr3b2, cr3b4 and CrB2 are formed. After hot pressing at high temperature, CrB2, CRB or cr3b4 can be formed.