Method of manufacturing a sintered material based on silicon nit

Details Method of manufacturing a sintered material based on silicon nit Method of manufacturing a sintered material based on silicon nit

1982-12-07

1983-10-18

McCarthy, Helen M.

Compositions: ceramic

Ceramic compositions

Refractory

264 65, 501152, C04B 3558

Patent

active

044106360

ABSTRACT:
A silicon nitride material is obtained by natural sintering in the presence of a small quantity of yttrium oxide. The method comprises the steps of mixing silicon powder with relatively small quantities of aluminum powder and yttrium oxide powder, nitriding the mixture of powders, re-crushing the nitrided mixture of powders, shaping the re-crushed powders, and then sintering the shaped re-crushed powders.

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Chemical Abstracts, vol. 91, No. 4, Jul. 23, 1979, p. 160, abridgement 23395a (corresponding to Japanese patent application 79 25 299).

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