POWDER FOR THERMAL SPRAYING AND METHOD FOR FORMING THERMAL-SPRAY DEPOSIT
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United States of America Patent
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Issued Date -
Feb 23, 2012
app pub date -
Jun 4, 2010
filing date -
Jun 10, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Disclosed is a thermal spray powder of granulated and sintered cermet particles. The granulated and sintered cermet particles have an average particle size of 5 to 25 μm. The particles have a compressive strength of 50 MPa or higher. The particles have a straight ratio of 0.25 or higher, the straight ratio being defined as a value resulting from dividing the maximum thickness of a thermal spray coating obtained, when 150 grams of the thermal spray powder is subjected to thermal spot spraying, by the length of the longest of line segments each of which has both ends thereof on a contour of the spray coating. The granulated and sintered cermet particles have an average aspect ratio of preferably 1.25 or lower. The thermal spray powder is preferably used in applications where a thermal spray coating is formed by high-velocity flame spraying or cold spraying.
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