Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Patent
1996-10-02
1999-11-02
Griffin, Steven P.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
428432, 428446, 428450, 428454, 428457, 4151734, 4151744, 75252, 75254, 75230, 75231, 277941, 277942, 277943, C22C 900, C22C 506, F01D 1108, F04D 2908
Patent
active
059766956
ABSTRACT:
Thermally sprayable powders for the formation of abradable seals and abradable seals formed by thermally spraying the powders include an alloyed metal phase material and a solid lubricant ceramic phase material. The alloyed metal phase material includes a major amount of a matrix metal which can be one or more of Ag or Cu, at least one melting point depressing metal which can be one or more of Si, B, Mn, or Al, and at least one oxidation resistant metal which can be one or more of Al, Cr, or Si. The solid lubricant ceramic phase is preferably hexagonal boron nitride, molybdenum sulphide, graphite, talc, bentonite or mica. Abradable seals formed by thermally spraying the powders are suitable for use with Ti alloy blades at temperatures up to 700.degree. C.
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Hajmrle Karel
Wang Hougong
Griffin Steven P.
Rohrer Charles E.
Westaim Technologies Inc.
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