Boron nitride containing material

Details Boron nitride containing material Boron nitride containing material

1996-10-22

1999-06-01

Group, Karl

Compositions: ceramic

Ceramic compositions

Refractory

501 986, 501 92, 501100, C04B 355835

Patent

active

059087951

ABSTRACT:
A boron-nitride-containing material of multi-component system is obtained at a low cost by heating a mixed powder containing a boride and an oxide in a nitrifying atmosphere, whereby a part or the whole of the oxide is reduced with the element bonded to boron of the boride to convert the raw materials to one or more kinds of an oxide having less bonded oxygen, an acid nitride, a nitride, a carbide, and a boride and also boron nitride is formed. A sintered product of a boron-nitride-containing material is obtained by packing a mixed powder containing borides in a heat-resistant mold and heating the packed powders in a nitrifying atmosphere while restraining the packed powders by the mold. The sintered product is obtained in which neither expansion nor deformation occurred and no cracks formed.

REFERENCES:
patent: 3544486 (1970-12-01), Passmore
patent: 3649314 (1972-03-01), James
patent: 3854967 (1974-12-01), Reinmuth
patent: 4668643 (1987-05-01), Kida et al.
patent: 4762810 (1988-08-01), Endo et al.
patent: 4863881 (1989-09-01), Ahrens et al.
patent: 4885264 (1989-12-01), Sindlhauser et al.
patent: 4904625 (1990-02-01), Shaffer
patent: 4960734 (1990-10-01), Kanai et al.
patent: 5120688 (1992-06-01), Hsieh
patent: 5227347 (1993-07-01), Fukase et al.
patent: 5336454 (1994-08-01), Montgomery
patent: 5389587 (1995-02-01), Nakashima et al.
patent: 5457075 (1995-10-01), Fukushima et al.
Database WPI, Week 9252, Derwent Publications Ltd., London, GB; An 92-428946 of JP-A-04 325 461 (Hitachi Ltd), Nov. 13, 1992.

Affiliated with

Also associated with

Rating

Boron nitride containing material does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Boron nitride containing material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Boron nitride containing material will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-954765