High temperature corrosion resistant composite structure
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United States of America Patent
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Apr 17, 1990
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N/A
app pub date -
Apr 15, 1988
filing date -
Apr 15, 1988
priority date (Note) -
Expired
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Abstract
A structure which is resistant to corrosion at high temperatures comprises a ductile layer of a platinum group metal, such as iridium, and a layer of a refractory metal having a high strength at high temperatures, such as rhenium. A solid solution of the two metals is present between and metallurgically bonded to the two metal layers. Further, the structure may include a layer of ceramic such as zirconia or hafnia on the exposed face of the platinum group metal layer.
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