Alumina formed body and method for its manufacture

Details Alumina formed body and method for its manufacture Alumina formed body and method for its manufacture

1986-04-24

1987-06-02

Van Balen, William J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

156656, 156657, 427309, 427399, 427444, 4283073, 4283077, 4283128, 428409, 428689, B32B 300, B32B 1900, B32B 514, B44C 122

Patent

active

046703209

ABSTRACT:
An alumina formed body comprising many long alumina elements oriented in random directions and interconnected so as to constitute a porous matrix comprising a large number of fine pores. Such a body is manufactured by reacting a glass-formed body comprising silica with aluminum at high temperature to form an alumina composite material comprising alumina, aluminum and silicon and removing aluminum and silicon from the aluminum composite material.

REFERENCES:
patent: 3816222 (1974-06-01), Plumat et al.
patent: 3817781 (1974-06-01), Church et al.
patent: 4135012 (1979-01-01), Su
patent: 4143182 (1979-03-01), Henney et al.
patent: 4159357 (1979-06-01), Grunke
patent: 4344222 (1982-08-01), Bergeron et al.

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