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:
May. 12, 1992
Filed:
Jan. 09, 1991
Applicant:
Inventor:
John F MacDowell, Penn Yan, NY (US);
Assignee:
Corning Incorporated, Corning, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C / ; C03C / ;
U.S. Cl.
CPC ...
501 32 ; 501 10 ; 501 49 ; 501 77 ; 501 79 ;
Abstract
This invention is particularly directed to the production of glass-ceramics specifically designed for bonding hard refractory particulate ceramics into dense, mechanically strong composite bodies. The inventive glass-ceramics are crystallized in situ from divalent metal borate glasses. The invention is particularly drawn to composite articles where Al.sub.2 O.sub.3 particles comprise the hard refractory ceramic and the inventive glasses react therewith to form an exceptionally strong bond therebetween accompanied with the development of divalent metal aluminoborate crystals.