Porous ceramic seals and method of making same
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United States of America Patent
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Jun 24, 1980
Issued Date -
N/A
app pub date -
Dec 12, 1977
filing date -
Apr 15, 1976
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A ceramic-metal composite laminate capable of exposure to high temperature differentials without damage, consisting of an inner ceramic layer, an outer metal layer and an intermediate interface layer of a low modulus metallic low density structure having a high melting point. The ceramic layer is secured to the low modulus structure directly or through an intermediate ceramic-metal composite, and the outer metal layer is brazed to the intermediate low modulus layer. Thermal strains caused by a temperature differential between the inner and outer layers are taken up without harmful effect by the intermediate low modulus layer.
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