Method of manufacturing sintered compact of cubic boron nitride

Details Method of manufacturing sintered compact of cubic boron nitride Method of manufacturing sintered compact of cubic boron nitride

1987-03-31

1988-09-20

Capella, Steven

Compositions: ceramic

Ceramic compositions

Refractory

423290, C04B 3558

Patent

active

047725753

ABSTRACT:
A sintered compact of cubic boron nitride is made by adsorbing and/or diffusing 0.005 to 1.000 percent by weight of water into a boron nitride compact containing alkaline earth metal boron nitride as a catalyst. The so prepared compact is then subjected to a treatment under high pressure at a relatively low temperature to form a dense cubic boron nitride sintered compact of high purity.

REFERENCES:
patent: 2947617 (1960-08-01), Wentorf
patent: 3212852 (1965-10-01), Bundy
patent: 4188194 (1980-02-01), Corrigan
patent: 4349517 (1982-09-01), Lysanov et al.
patent: 4469802 (1984-09-01), Endo et al.
Mat. Res. Bull., vol. 7, 999-1004, 1972, Pergamon Press, Inc., M. Waktsuki et al. "Synthesis of Polycrystalline Cubic Bn".
Mat. Res. Bull., vol. 9, pp. 1443-1446, 1974, Pergamon Press Inc., K. Susa et al. "Catalytic Effect of Water the Synthesis of Cubic BN".

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