Process of making a coated substrate having closed porosity

Details Process of making a coated substrate having closed porosity Process of making a coated substrate having closed porosity

1994-01-21

1995-04-11

Fiorilla, Christopher A.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Of inorganic materials

264 61, 427 96, 427373, B29C 6500

Patent

active

054055628

ABSTRACT:
A method of forming a substrate for electronic devices by forming a mixture of a liquid vehicle, crystalline glass powder and carbon powder into a slurry. The slurry is then formed into a desired shape and heated in an oxidizing atmosphere at a temperature less than 900.degree. C. for a time sufficient to oxidize the carbon powder and partially sinter the crystalline glass to form the porous substrate having closed porosity.

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