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Title: Silicon nitride/silicon carbide composite densified materials prepared using composite powders

Abstract

Prepare silicon nitride-silicon carbide composite powders by carbothermal reduction of crystalline silica powder, carbon powder and, optionally, crystalline silicon nitride powder. The crystalline silicon carbide portion of the composite powders has a mean number diameter less than about 700 nanometers and contains nitrogen. The composite powders may be used to prepare sintered ceramic bodies and self-reinforced silicon nitride ceramic bodies.

Inventors:
; ; ; ; ; ; ;
Issue Date:
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
512432
Patent Number(s):
5,643,843
Application Number:
PAN: 8-678,199; CNN: Contract 86X-SK761C
Assignee:
Dow Chemical Co., Midland, MI (United States) PTO; SCA: 360201; PA: EDB-97:112077; SN: 97001827919
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 1 Jul 1997
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; SILICON NITRIDES; SILICON CARBIDES; SYNTHESIS; COMPOSITE MATERIALS; POWDERS

Citation Formats

Dunmead, S.D., Weimer, A.W., Carroll, D.F., Eisman, G.A., Cochran, G.A., Susnitzky, D.W., Beaman, D.R., and Nilsen, K.J. Silicon nitride/silicon carbide composite densified materials prepared using composite powders. United States: N. p., 1997. Web.
Dunmead, S.D., Weimer, A.W., Carroll, D.F., Eisman, G.A., Cochran, G.A., Susnitzky, D.W., Beaman, D.R., & Nilsen, K.J. Silicon nitride/silicon carbide composite densified materials prepared using composite powders. United States.
Dunmead, S.D., Weimer, A.W., Carroll, D.F., Eisman, G.A., Cochran, G.A., Susnitzky, D.W., Beaman, D.R., and Nilsen, K.J. Tue . "Silicon nitride/silicon carbide composite densified materials prepared using composite powders". United States.
@article{osti_512432,
title = {Silicon nitride/silicon carbide composite densified materials prepared using composite powders},
author = {Dunmead, S.D. and Weimer, A.W. and Carroll, D.F. and Eisman, G.A. and Cochran, G.A. and Susnitzky, D.W. and Beaman, D.R. and Nilsen, K.J.},
abstractNote = {Prepare silicon nitride-silicon carbide composite powders by carbothermal reduction of crystalline silica powder, carbon powder and, optionally, crystalline silicon nitride powder. The crystalline silicon carbide portion of the composite powders has a mean number diameter less than about 700 nanometers and contains nitrogen. The composite powders may be used to prepare sintered ceramic bodies and self-reinforced silicon nitride ceramic bodies.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {7}
}