Mullite-based ceramic body

Details Mullite-based ceramic body Mullite-based ceramic body

1988-05-26

1990-06-19

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Refractory

C04B 3510

Patent

active

049353900

ABSTRACT:
A sintered mullite-based body having an excellent dielectric constant and thermal expansion coefficient, and an improved flexural strength and surface smoothness, is obtained by heat treating a composition of 99.1 to 80% by weight of a mullite powder and 0.1 to 20% by weight of yttrium oxide as a sintering agent, optionally together with a colorant of MoO.sub.3.

REFERENCES:
patent: 4587225 (1986-05-01), Tsukuma et al.
patent: 4595665 (1986-06-01), Takayama et al.
K. Hashimoto and K. Niwa, "The Effect of M.sub.g O Addition on Mullite Substrate", Yogyo Kyokaishi vol. 95, No. 10, 1987, pp. 1037-1039.
J. S. Moya and M. I. Osendi, Journal of Materials Science Letters 2 (1983), 599-601.
S. M. Johnson and J. A. Pask, Ceramic Bulletin, vol. 61, No. 8, (1982), 838-842.
Ceramic Industry, Jan. 1987, pp. 48-49.

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