High hardness material

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C - Chemistry, Metallurgy

23

C

117/83

C23C 16/14 (2006.01) C23C 16/32 (2006.01)

Patent

CA 1185839

HIGH HARDNESS MATERIAL ABSTRACT A hard fine-grained internally stressed material of tungsten and carbon or tungsten, carbon and oxygen is described which is produced by thermochemical deposition. The material consists primarily of a two phase mixture of pure tungsten and an A15 structure, is free of columnar grain distribution, and has a hardness of greater than 1,200 VHN. The average grain size is less than 0.1 micron.

408582

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