Thermal spray powder and method for forming a thermal spray coating
AssigneeFujimi Incorporated
InventorsJunya Kitamura, Hiroyuki Ibe, Yoshikazu Sugiyama
Life of this patent
Estimating the term…
Abstract
A thermal spray powder includes granulated and sintered yttria particles obtained by granulating and sintering a raw material powder in air or oxygen. The primary particles constituting the granulated and sintered yttria particles have an average particle size between 0.5 and 1.5 μm inclusive, and 1.11 times or more as large as the raw material powder. Alternatively, the primary particles have an average particle size between 3 and 8 μm inclusive.
Claims8
A thermal spray powder comprising granulated and sintered yttria particles obtained by granulating and sintering a raw material powder in air, wherein the primary particles constituting the granulated and sintered yttria particles have an average particle size between 0.5 and 1.5 μm inclusive, and 1.15 times or more as large as the raw material powder.
A method for forming a thermal spray coating comprising forming a thermal spray coating by atmospheric-pressure plasma spraying of a thermal spray powder, the thermal spray powder comprising granulated and sintered yttria particles obtained by granulating and sintering a raw material powder in air, wherein the primary particles constituting the granulated and sintered yttria particles have an average particle size between 0.5 and 1.5 μm inclusive, and 1.15 times or more as large as the raw material powder.
Dependencies are inferred from the claim text.