The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 11, 1996
Filed:
Jun. 07, 1995
Stephen D Dunmead, Midland, MI (US);
Alan W Weimer, Midland, MI (US);
Daniel F Carroll, Midland, MI (US);
Glenn A Eisman, Midland, MI (US);
Gene A Cochran, Midland, MI (US);
David W Susnitzky, Midland, MI (US);
Donald R Beaman, Midland, MI (US);
Kevin J Nilsen, Midland, MI (US);
The Dow Chemical Company, Midland, MI (US);
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.