Ceramic firing process

Details Ceramic firing process Ceramic firing process

1975-04-16

1976-10-12

Arnold, Donald J.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Of inorganic materials

252421, B01J 3700

Patent

active

039858464

ABSTRACT:
This invention relates to an improvement in the process of preparing porous ceramic articles which are formed by blending a composition containing a polyolefin, a ceramic filler and a plasticizer; shaping the blend; extracting the plasticizer and firing the article to remove the polyolefin. The improvement comprises soaking the extracted article in a water solution of a surfactant prior to firing which results in a substantial reduction in the number of cracked pieces when firing many pieces simultaneously.

REFERENCES:
patent: 3261894 (1966-07-01), Seidl
patent: 3755204 (1973-08-01), Sergeys

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