Method of producing ceramic sintered body having dense ceramic membrane
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United States of America Patent
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Oct 5, 1993
Grant Date -
N/A
app pub date -
Dec 18, 1990
filing date -
Apr 18, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of producing a ceramic sintered body having a ceramic membrane which comprises a process of applying a precursor capable of converting into a ceramic membrane having a new function through heating onto at least a portion of a ceramic porous body to impart said function of the surface of the ceramic porous body, a process of applying a precursor capable of converting into a gas-impermeable membrane through heating over the whole surface of the porous body, a process of forming the gas-impermeable membrane by heating, a process of conducting hot isostatic pressing to the porous body, and a process of removing said gas-impermeable membrane. Ceramic sintered bodies having a dense ceramic membrane on the surface can be produced efficiently in very short processes.
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