Method of manufacturing a super-lightweight ceramic foam

Details Method of manufacturing a super-lightweight ceramic foam Method of manufacturing a super-lightweight ceramic foam

2005-08-23

2005-08-23

Griffin, Steven P. (Department: 1731)

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Of inorganic materials

C264S050000

Reexamination Certificate

active

06932925

ABSTRACT:
A super-lightweight ceramic foam with a cellular structure effectively reinforced by ceramic short fibers, which has a density of 0.2 g/cm3or less and a sufficient strength. The ceramic foam is prepared by evenly dispersing ceramic short fibers throughout a nonaqueous solvent through the use of the reactivity of metal alkoxide with the surface of the ceramic short fibers, adding into the nonaqueous solvent an aqueous slurry containing ceramic powder dispersed therein, allowing the evenly dispersed ceramic fibers to move into an aqueous phase separately from a nonaqueous solvent phase so as to obtain an aqueous slurry containing the ceramic fibers evenly dispersed therein, and foaming and firing the aqueous slurry.

REFERENCES:
patent: 3935060 (1976-01-01), Blome et al.
patent: 6602449 (2003-08-01), Grader et al.

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