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. 09, 1981
Filed:
Nov. 06, 1979
Applicant:
Inventors:
Carl L Eggerding, Wappingers Falls, NY (US);
Frank Gonzales, Jr, Poughkeepsie, NY (US);
Jerzy B Niklewski, Wappingers Falls, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ; C04B / ;
U.S. Cl.
CPC ...
423327 ; 106 65 ; 106 734 ; 264 56 ; 264 61 ; 264 63 ;
Abstract
A method of forming ceramic material which includes mullite (3Al.sub.2 O.sub.3.2SiO.sub.2) in any desired percentage. A particulate mixture is formed of (1) mullite in an amount of at least 5% by weight, (2) Al.sub.2 O.sub.3 in an amount to provide sufficient SiO.sub.2 to combine with Al.sub.2 O.sub.3 to form the desired mullite. The mixture is sintered to a temperature in the range of 1300.degree. C. to 1600.degree. C. wherein the Al.sub.2 O.sub.3 and SiO.sub.2 react to form mullite under the influence of the initially added mullite.