Sialon containing high content of alpha prime phase

Details Sialon containing high content of alpha prime phase Sialon containing high content of alpha prime phase

1989-07-03

1992-06-09

Group, Karl

Compositions: ceramic

Ceramic compositions

Refractory

501 94, C04B 3558

Patent

active

051206870

ABSTRACT:
Silicon aluminum oxynitride materials having high hardness and high density are formed by pressureless sintering of silicon nitride, yttrium oxide and aluminum nitride. The materials contain at least 75 weight percent of alpha prime phase sialon.

REFERENCES:
patent: 4127416 (1978-11-01), Lumby et al.
patent: 4506020 (1985-03-01), Butler et al.
patent: 4547470 (1985-10-01), Tanase et al.
patent: 4563433 (1986-01-01), Yeckley et al.
patent: 4609633 (1986-09-01), Fukuhara et al.
Zhen-Kun Huang et al., "Formation of Alpha Si.sub.3 N.sub.4 Solid Solutions in the System Si.sub.3 N.sub.4 -AlN-Y.sub.2 O.sub.3 ", Am. Cer. Soc., Jun. 1983, pp. C96-C97.

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