Abradable coating applied with cold spray technique
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United States of America Patent
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Apr 2, 2002
Grant Date -
N/A
app pub date -
Oct 27, 2000
filing date -
Oct 27, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A cold spray process (20) for applying an abradable coating (16) to a substrate material (12). A bond coat layer (14) and/or an abradable coating material layer (16) are applied to a substrate (12) by directing particles of the material toward the substrate surface at a velocity sufficiently high to cause the particles to deform and to adhere to the surface. Particles of the bond coat material may first be directed toward the substrate surface at a velocity sufficiently high to clean the surface (24) but not sufficiently high to cause the particles to deform and to adhere to the surface.
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