Aluminum oxide based sintered body

Details Aluminum oxide based sintered body Aluminum oxide based sintered body

1997-07-28

1999-01-12

Group, Karl

Compositions: ceramic

Ceramic compositions

Refractory

501 89, 501 91, 501 92, 501128, C04B 35117

Patent

active

058588990

ABSTRACT:
An aluminum oxide based sintered body and a method for manufacturing the same are disclosed. The aluminum oxide based sintered body is composed of silicon compounds in particulate form of from about 5 to about 40 mole %, calculated as a carbide, which is present along grain boundaries as a silicon-containing glass, at least one metal or metal compound of from 0.5 to about 20 mole %, calculated as metals, selected from Ti, Nb, Ta, Cr and Mo, and the remainder of Al.sub.2 O.sub.3, and the molar ratio of the metals with respect to the silicon compounds, calculated as a carbide, is about 4 or less.

REFERENCES:
patent: 4729972 (1988-03-01), Kodama et al.
patent: 5108963 (1992-04-01), Fu et al.
patent: 5123935 (1992-06-01), Kanamaru et al.
patent: 5286684 (1994-02-01), Otsuka et al.
patent: 5322823 (1994-06-01), Ueda et al.

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