Compositions: ceramic – Ceramic compositions – Refractory
Patent
1995-06-12
1996-07-30
Bonner, Melissa
Compositions: ceramic
Ceramic compositions
Refractory
501 98, 501153, 428901, 428698, 428704, C04B 35581
Patent
active
055411452
ABSTRACT:
An aluminum nitride ceramic having desired properties suitable for electronic packaging applications can be prepared from a novel aluminum nitride powder/sintering aid mixture. The sintering aid comprises a glassy component formed from alumina, calcia and boria, and a non-vitreous component comprising an element or compound of a metal of Group IIa, IIIa, or the lanthanides, preferably crystalline oxides, reactibis with the crystallized glass component and the alumina from the Al N grains. Alternatively, the sintering aid comprises a multi-component glass composition capable of forming the above components upon melting and thereafter crystallizing upon reaction.
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Fasano Benjamin V.
Harris Jonathan H.
Herron Lester W.
Shinde Subhash L.
Takamori Takeshi
Bonner Melissa
The Carborundum Company/IBM Corporation
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