Transparent BN-type ceramic material and method of producing the

Details Transparent BN-type ceramic material and method of producing the Transparent BN-type ceramic material and method of producing the

1986-05-21

1988-09-20

Schor, Kenneth M.

Glass manufacturing

Processes

With shaping of particulate material and subsequent fusing...

65 181, 264 81, 423290, C03B 1900, C01B 21064

Patent

active

047723041

ABSTRACT:
A transparent BN-type ceramic material comprising 10 to 40 wt. % of boron (B), 35 to 55 wt. % of nitrogen (N) and 3 to 40 wt. % of silicon (Si) as the main component elements, and 1 to 10 wt. % of sub-component elements, with the property of not being crystallized by heat treatment at 1600.degree. C. for one hour, and a method of producing the above ceramic material by reacting a boron-containing compound, a nitrogen-containing compound and a silicon-containing compound at deposition temperatures in a range of more than 1300.degree. C. to less than 1700.degree. C. with the total gas pressure within a reaction furnace maintained in the range from 10 Torr to 100 Torr by use of a chemical vapor deposition method are disclosed.

REFERENCES:
patent: 3676343 (1972-07-01), Dietz
patent: 4319803 (1982-03-01), Burmeister
patent: 4402925 (1983-09-01), Shinko
patent: 4500483 (1985-02-01), Veltri
Emergent Process Methods for High-Technology Ceramics, R. F. Davis et al., (Eds.), Plenum Press, New York, 1982, pp. 347-358.

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