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Compare and contrast: carbon and boron nitride Cutting tools?

Compare and contrast: carbon and boron nitride

Cutting tools?

Engineering   Chemical-Engineering   
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Answer #1

boron nitride

Boron nitride is a crystalline compound of boron and nitrogen, an industrial ceramic material. it is used as electrical insulators and cutting tools. It is made in two crystallographic forms, hexagonal boron nitride (H-BN) and cubic boron nitride (C-BN).

generally boron nitride are of two structure

hexagonal boron nitride and cubic boron nitride

cubic boron nitride diamond

Density (g/cm3) = 3.45 3.515

bulk modulus(G.Pa) = 400 440

thermal coductivity (W/m.K) = 740 2200

hardness of diamond and boron nitride on the Mohs hardness scale is 10 and 7 respectively

for cutting purpose diamond is superior material and diamond has tetrahedral structure and diamond is a pure form of carbon wherease boron nitride is a compound

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