Core and mold materials for directional solidification of advanc

Details Core and mold materials for directional solidification of advanc Core and mold materials for directional solidification of advanc

1977-03-09

1978-06-27

McCarthy, Helen M.

Compositions: coating or plastic

Coating or plastic compositions

Molds and mold coating compositions

106 62, 106 65, 106 732, 106 734, 164 41, 164132, 28B 734, B22C 910, B22D 2100, C04B 3544

Patent

active

040972917

ABSTRACT:
A ceramic suitable for use in the casting of advanced superalloy materials has a structure including a predetermined porosity content and a material microstructure characterized by a high density of microcracks.

REFERENCES:
patent: 3514302 (1970-05-01), Willmore et al.
patent: 3643728 (1972-02-01), Hulse
patent: 3725094 (1973-04-01), Levy et al.
patent: 4031177 (1977-06-01), Auriol et al.
patent: 4043377 (1977-08-01), Mazdiyasni et al.
Bailey, J. T. et al. 37 Preparation and Properties of Dense Spinel Ceramics in the MgAl.sub.2 O.sub.4 -Al.sub.2 O.sub.3 System"-Trans. Brit. Cer. Soc., 68 (4) pp. 159-164 (1969).
Fritsche, E.T. et al.-"Liquidus in the Alumina-Rich System La.sub.2 O.sub.3 -Al.sub.2 O.sub.3 "-J. Amer. Cer. Soc., 50 (3) pp. 167-168 (1967).

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