Beta-alumina composites and methods for producing them

Details Beta-alumina composites and methods for producing them Beta-alumina composites and methods for producing them

1976-08-04

1978-04-11

Arnold, Donald J.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

106 734, 252518, 423600, 429191, 429193, C04B 3510

Patent

active

040839192

ABSTRACT:
A hot-pressed beta-alumina composition is provided which consists essentially of M.sub.2 O.nAl.sub.2 O.sub.3, wherein n is a positive integer between about 3 and about 12 and M is selected from Na and K. The new beta-alumina composition features a flexural strength of at least about 45,000 psi as measured by ACMA Test No. 2, and high transmissability to light. Methods for preparing the above-described beta-alumina composition are also provided.

REFERENCES:
patent: 3671324 (1972-06-01), Iwai et al.
patent: 3795723 (1974-03-01), Clendenen et al.

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