Thermal spraying powder
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United States of America Patent
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Oct 9, 2007
Grant Date -
Aug 17, 2006
app pub date -
Feb 15, 2006
filing date -
Feb 15, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A thermal spraying powder includes granulated and sintered particles of an yttrium-aluminum double oxide obtained by granulating and sintering a raw powder containing yttrium and aluminum. The total volume of fine pores having a diameter of 6 .mu.m or less in one gram of the granulated and sintered particles is 0.06 to 0.25 cm.sup.3. The thermal spraying powder reliably forms a thermal spray coating that is suitable for use where the thermal spray coating is subjected to a thermal shock in a corrosive atmosphere or an oxidative atmosphere and for use where the thermal spray coating is subjected to a thermal shock in a state where the thermal spray coating contacts a member that has reactivity to a base material.
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