Alumina-based ceramics for core materials

Details Alumina-based ceramics for core materials Alumina-based ceramics for core materials

1977-10-06

1979-05-29

McCarthy, Helen

Compositions: coating or plastic

Coating or plastic compositions

Molds and mold coating compositions

106 40R, 106 63, 106 65, 106 734, 164132, B28B 734

Patent

active

041566149

ABSTRACT:
Cores made of alumina-based ceramics, such as .beta.-alumina materials, are substantially non-reactive with directionally solidified eutectic and superalloy materials, do not cause hot cracking of the same, and are easily leachable from the cast metal.

REFERENCES:
patent: 3078173 (1963-02-01), Dolph
patent: 3312558 (1967-04-01), Miller
patent: 3643728 (1972-02-01), Hulse
patent: 3901733 (1975-08-01), Toy et al.
patent: 4052538 (1977-10-01), Eddy et al.
patent: 4068048 (1978-01-01), Desplanches
patent: 4073662 (1978-02-01), Borom

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