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:
Jul. 12, 1988
Filed:
May. 23, 1986
Applicant:
Inventors:
Ronald H Baney, Midland, MI (US);
Duane R Bujalski, Monitor Township, Bay County, MI (US);
Assignee:
Dow Corning Corporation, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ;
U.S. Cl.
CPC ...
501 88 ; 501 92 ; 501 97 ;
Abstract
A method of preparing ceramic materials with increased levels of crystalline SiC and/or Si.sub.3 N.sub.4 is described. The method consists of firing a mixture of a R.sub.3 SiNH-containing silazane polymer and an inorganic compound selected from the group consisting of iron compounds, cobalt compounds, nickel compounds, and copper compounds to an elevated temperature of at least 750.degree. C. under an inert atmosphere or in a vacuum until a ceramic material with increased levels of crystalline SiC and/or Si.sub.3 N.sub.4 is obtained.