Refractory material intended especially for contacting molten al

Details Refractory material intended especially for contacting molten al Refractory material intended especially for contacting molten al

1982-02-19

1983-09-13

McCarthy, Helen M.

Compositions: ceramic

Ceramic compositions

Refractory

501124, C04B 3558, C04B 3565

Patent

active

044042922

ABSTRACT:
A refractory material and the process for its manufacture, designed particularly for contacting molten aluminum. The material is composed of an aggregate constituted by silicon nitride, and a binder. Preferably, the silicon nitride enters into the composition of the material in a proportion comprising between 70% and 80% of the total weight of the final product, and it is in addition obtained by reaction sintering. In the process for manufacturing the material, the silicon nitride and the binder are first mixed dry and then kneaded in a wet kneader.

REFERENCES:
patent: 4086097 (1978-04-01), Carbonnel
patent: 4142908 (1979-03-01), Daviot et al.
patent: 4150189 (1979-04-01), Pusch
patent: 4218254 (1980-08-01), Kiehl et al.
patent: 4248752 (1981-02-01), Myles
Gill, R. M., "Self Bonded Silicon Nitride", The Refractories Journal, Mar. 1962, pp. 92-94.

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