Process for making a ceramic article having a dense integral out

Details Process for making a ceramic article having a dense integral out Process for making a ceramic article having a dense integral out

1977-10-06

1980-02-05

McCarthy, Helen M.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Of inorganic materials

106 389, 106 40R, 106 41, 106 65, 106 734, 164 41, 164132, 164369, 264 44, 264 455, 264 65, 264 66, B29H 720

Patent

active

041872665

ABSTRACT:
A method for simultaneously forming an integral barrier layer on selected external surfaces of a fired alumina-based compound ceramic article and for increasing the porosity and crushability characteristics thereof embodies the sintering of a ceramic compact comprising a reactant fugitive filler material and the alumina-based compound ceramic material in a controlled atmosphere.

REFERENCES:
patent: 2593507 (1952-04-01), Wainer
patent: 3538202 (1970-11-01), Bidard
patent: 3903225 (1975-09-01), Jones et al.
patent: 3969124 (1976-07-01), Stewart
patent: 4013477 (1977-03-01), Jatkar et al.
patent: 4031177 (1977-06-01), Auriol et al
Gitzen, W. H. "Alumina As a Ceramic Material" (1970) pub. by Am. Cer. Soc., pp. 27-28, 30, 36-38, 104-105, 130-131.

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