Glass-ceramic-bonded ceramic composites

Details Glass-ceramic-bonded ceramic composites Glass-ceramic-bonded ceramic composites

1991-01-09

1992-05-12

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 10, 501 49, 501 77, 501 79, C03C 1400, C03C 1002

Patent

active

051127776

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.

REFERENCES:
patent: 4861734 (1989-08-01), MacDowell

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