Thermal barrier coating
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United States of America Patent
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-
Jun 1, 1982
Grant Date -
N/A
app pub date -
May 8, 1981
filing date -
Jul 25, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A thermal barrier coating adapted to provide a thermally insulating protective barrier on a component, the coating being capable of being applied to the components by spraying methods and being ductile when exposed to high temperatures. The coating comprises a mixture containing constituents of finely divided hollow glass microspheres; a ceramic frit of finely divided particles of alkali silicate titanate glass; and a refractory filler material of finely divided partiles such as micronized mica; aluminum oxide of mullite. All of the constituents of the mixture are suspended in a high temperature resistant binder material such as potassium silicate, sodium silicate or aluminum orthophosphate.
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