Thermal shock resistant ceramic honeycomb structures of cordierite, mullite and corundum
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United States of America Patent
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Jan 7, 1992
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N/A
app pub date -
Apr 30, 1990
filing date -
Apr 30, 1990
priority date (Note) -
Expired
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Abstract
A ceramic honeycomb structure containing SiO.sub.2, Al.sub.2 O.sub.3 and MgO primarily in the form of cordierite, mullite and corundum having a compositional gradient in the direction of the channels of the honeycomb and having extensive microcracking provides high resistance to thermal shock, and is useful as a substrate for catalysts.
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