Methods for increasing the crushability characteristics of cores

Details Methods for increasing the crushability characteristics of cores Methods for increasing the crushability characteristics of cores

1977-03-09

1978-04-25

Pavelko, Thomas P.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Of inorganic materials

106 62, 106 732, 164 41, 164132, 164138, 264 56, 264221, 264317, 425DIG12, C04B 3564

Patent

active

040863115

ABSTRACT:
The crushability of a ceramic article suitable for use in the casting and directional solidification of advanced superalloy materials is enhanced by utilizing a two-phase mixture of material and inducing microcracks in the material. The crushability is further enhanced by forming the article to include a predetermined porosity content.

REFERENCES:
patent: 2691738 (1954-10-01), Matthias
patent: 3311488 (1967-03-01), Seufert
patent: 3972367 (1976-08-01), Gigliotti, Jr.
patent: 4043381 (1977-08-01), Mazdiyasni

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