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. 20, 1995
Filed:
Jul. 20, 1992
Applicant:
Inventors:
Chen-Tsu Fu, Hsinchu, TW;
Ai-Kang Li, Hsinchu, TW;
Assignee:
Industrial Technology Research Institute, Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ;
U.S. Cl.
CPC ...
264 44 ; 264 65 ; 264 66 ;
Abstract
A heat treatment method is disclosed for improving the strength and the toughness of particle reinforced alumina composite. A densified alumina composite is heated to a temperature of higher than 600.degree. C., maintained at that temperature for about 0.5-150 hours, and then the temperature is lowered to room temperature. As a result, the flexure strength and the fracture tougnness of the particle reinforced alumina composite are substantially increased after the heat treatment in comparison to those without heat treatment.