Thermal spraying powder

Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter

Reexamination Certificate

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C428S403000, C428S404000, C428S405000

Reexamination Certificate

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11354378

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 μm or less in one gram of the granulated and sintered particles is 0.06 to 0.25 cm3. 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.

REFERENCES:
patent: 6916534 (2005-07-01), Wataya et al.
patent: 2001/0003271 (2001-06-01), Otsuki
patent: 2002/0160189 (2002-10-01), Wayata et al.
patent: 2006/0116274 (2006-06-01), Kitamura et al.
patent: 2002-080954 (2002-03-01), None

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