Method for forming porous ceramic materials

Details Method for forming porous ceramic materials Method for forming porous ceramic materials

1994-02-14

1995-08-08

Fiorilla, Christopher A.

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

501 80, C04B 3800

Patent

active

054396247

ABSTRACT:
A method for producing high surface area, thermally stable, microporous porous ceramic materials involves replacing a portion of the silicon in a sol or gel comprising silica (silicon dioxide) with cations of another metal. The metal-substituted silica sols are dried and fired to yield porous ceramic materials. Similarly, metal-substituted gels are fired to yield porous ceramic materials. When compared with unsubstituted silica materials, the materials thus produced offer advantageous benefits including improved stability in a basic environment, enhanced thermal stability, and advantageous surface properties such as intrinsic negative charge.

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