Thermal spray material, thermal spray coating and thermal spray coated article
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United States of America Patent
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Oct 23, 2018
Grant Date -
Nov 10, 2016
app pub date -
Apr 29, 2016
filing date -
May 8, 2015
priority date (Note) -
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Abstract
This invention provides a thermal spray material capable of forming a thermal spray coating excellent in plasma erosion resistance as well as in properties such as porosity and hardness. The thermal spray material comprises a rare earth element oxyhalide (RE-O—X) which comprises a rare earth element (RE), oxygen (O) and a halogen atom (X) as its elemental constituents. The thermal spray material has an X-ray diffraction pattern that shows a main peak intensity IA corresponding to the rare earth element oxyhalide, a main peak intensity IB corresponding to a rare earth element oxide and a main peak intensity IC corresponding to a rare earth element halide, satisfying a relationship [(IB+IC)/IA]<0.02.
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