Nitrides-silicides and sulfides, Mechanical Engineering

Nitrides, Silicides and Sulfides

Nitrides contain very high melting point but initiate to oxidize at low temperature. They have poor resistance also to chemicals. Boron nitride have a graphite structure and thus exhibit lubricating properties. A type of boron carbide identified as Borazon produced via compressing beneath high pressure of 68000 atmospheres at a temperature above 1700oC has hardness equivalent to such of diamond. Borazon also has a excellent resistance to oxidation and can withstand a temperature of 1950oC.

 

 

Posted Date: 2/27/2013 1:51:30 AM | Location : United States







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