Multilayer material, anti-erosion and anti-abrasion coating incorporating said multilayer material
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United States of America Patent
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Dec 30, 1997
Grant Date -
N/A
app pub date -
Apr 26, 1996
filing date -
Oct 14, 1991
priority date (Note) -
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Abstract
The present invention relates to a multilayer material useful as an anti-erosion and anti-abrasion coating, and to a process for producing the multilayer material at low temperatures. The multilayer material comprises a substrate covered with at least one metallic tungsten ductile layer and at least one hard layer of a solid solution of an additional element chosen from carbon or nitrogen or a mixture of carbon and nitrogen in tungsten or a tungsten alloy, the two types of layers ar alternating. The multilayer material is particularly useful as a coating for parts used in aeronautics.
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