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Title: Method for producing silicon nitride/silicon carbide composite

Abstract

Silicon carbide/silicon nitride composites are prepared by carbothermal reduction of crystalline silica powder, carbon powder and optionally crsytalline silicon nitride powder. The crystalline silicon carbide portion of the composite has a mean number diameter less than about 700 nanometers and contains nitrogen.

Inventors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. Midland, MI
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
870521
Patent Number(s):
5538675
Application Number:
08/227,751
Assignee:
Dow Chemical Company (Midland, MI)
Patent Classifications (CPCs):
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
DOE Contract Number:  
86X-SK761C
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; producing; silicon; nitride; carbide; composite; composites; prepared; carbothermal; reduction; crystalline; silica; powder; carbon; optionally; crsytalline; portion; mean; diameter; 700; nanometers; contains; nitrogen; silica powder; carbide composite; nitride powder; silicon nitride; silicon carbide; crystalline silicon; producing silicon; carbon powder; carbide portion; carbothermal reduction; crystalline silica; contains nitrogen; /264/

Citation Formats

Dunmead, Stephen D, Weimer, Alan W, Carroll, Daniel F, Eisman, Glenn A, Cochran, Gene A, Susnitzky, David W, Beaman, Donald R, and Nilsen, Kevin J. Method for producing silicon nitride/silicon carbide composite. United States: N. p., 1996. Web.
Dunmead, Stephen D, Weimer, Alan W, Carroll, Daniel F, Eisman, Glenn A, Cochran, Gene A, Susnitzky, David W, Beaman, Donald R, & Nilsen, Kevin J. Method for producing silicon nitride/silicon carbide composite. United States.
Dunmead, Stephen D, Weimer, Alan W, Carroll, Daniel F, Eisman, Glenn A, Cochran, Gene A, Susnitzky, David W, Beaman, Donald R, and Nilsen, Kevin J. Tue . "Method for producing silicon nitride/silicon carbide composite". United States. https://www.osti.gov/servlets/purl/870521.
@article{osti_870521,
title = {Method for producing silicon nitride/silicon carbide composite},
author = {Dunmead, Stephen D and Weimer, Alan W and Carroll, Daniel F and Eisman, Glenn A and Cochran, Gene A and Susnitzky, David W and Beaman, Donald R and Nilsen, Kevin J},
abstractNote = {Silicon carbide/silicon nitride composites are prepared by carbothermal reduction of crystalline silica powder, carbon powder and optionally crsytalline silicon nitride powder. The crystalline silicon carbide portion of the composite has a mean number diameter less than about 700 nanometers and contains nitrogen.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {7}
}

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Works referenced in this record:

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journal, January 1992


Influence of Starting Powder Characteristics on Mechanical Properties of SiC-particle/Si3N4 Composites
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Adsorption of Gases in Multimolecular Layers
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Synthesis of silicon nitride by carbothermal reduction and nitriding of silica: Control of kinetics and morphology
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