Alumina porous body and production of the same

Details Alumina porous body and production of the same Alumina porous body and production of the same

1989-03-02

1990-10-23

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Refractory

501 80, C04B 3510

Patent

active

049652303

ABSTRACT:
An alumina porous body which comprises coarse alumina particles as a filler and SiO.sub.2, said alumina and SiO.sub.2 forming an Al.sub.2 O.sub.3 -SiO.sub.2 compound (mullite) on the surface of the coarse alumina particles through the reaction between them that takes place at the time of firing, said compound binding said coarse alumina particles, forming pores between them. The invention also relates to a process for producing an alumina porous body which comprises mixing coarse alumina particles with SiO.sub.2, molding the mixture, and firing the molding at a temperature not higher than 1700.degree. C., thereby sintering the coarse alumina particles.

REFERENCES:
patent: 4595665 (1986-06-01), Takayama et al.

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