Method for manufacture of foamed ceramic article

Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Of inorganic materials

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501 80, 501 84, B29H 720

Patent

active

044514158

ABSTRACT:
A foamed ceramic article is manufactured by adding hexagonally crystalline boron nitride as a foaming agent to a raw material formed preponderantly of a feldspar group mineral and sintering the resultant mixture.

REFERENCES:
patent: 3607170 (1971-09-01), Malesak
patent: 3753933 (1973-08-01), Olstowski et al.
patent: 4123285 (1978-08-01), Schuster et al.
patent: 4207114 (1980-06-01), Schuster et al.
patent: 4356271 (1982-10-01), Frances et al.

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