Method for rapid removal of cores made of .beta.Al.sub.2 O.sub.3

Details Method for rapid removal of cores made of .beta.Al.sub.2 O.sub.3 Method for rapid removal of cores made of .beta.Al.sub.2 O.sub.3

1977-10-06

1979-02-27

Massie, Jerome W.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

13422R, 134 29, 156644, 156656, 156667, 164131, 164132, B22D 2900

Patent

active

041417810

ABSTRACT:
Caustic solutions are employed in an autoclave process to rapidly remove cores made of .beta.-Al.sub.2 O.sub.3 from directionally solidified eutectic alloy and superalloy materials.

REFERENCES:
patent: 2989385 (1961-06-01), Gianbla et al.
patent: 3859427 (1975-01-01), Francis et al.
patent: 4013477 (1977-03-01), Jatkar et al.
patent: 4052538 (1977-10-01), Eddy et al.
patent: 4068048 (1978-01-01), Desplanches et al.
patent: 4073662 (1978-02-01), Borom

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