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:
Nov. 03, 1992
Filed:
Nov. 04, 1991
Applicant:
Inventor:
James P Edler, Troy, MI (US);
Assignee:
Eaton Corporation, Cleveland, OH (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ; C04B / ;
U.S. Cl.
CPC ...
423344 ; 264 65 ; 423406 ;
Abstract
A process for nitriding materials containing silicon to form a silicon nitride material predominantly in the alpha phase is disclosed which includes nitriding the silicon-containing material by subjecting it to a nitriding atmosphere containing at least nitrogen gas in combination with at least one other nitriding gas while keeping the composition of the nitriding atmosphere substantially constant by maintaining a substantially constant partial pressure of nitrogen gas during the nitriding, even though nitrogen is being consumed during the nitriding step to form the silicon nitride.