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US 2023/0415231 A1Published application
Reactive metal powders in-flight heat treatment processes
AssigneeAP&C Advanced Powders & Coatings, Inc.
InventorsFrédéric Larouche, Frédéric Marion, Matthieu Balmayer
Life of this patent
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Abstract
There are provided reactive metal powder in-flight heat treatment processes. For example, such processes comprise providing a reactive metal powder; and contacting the reactive metal powder with at least one additive gas while carrying out said in-flight heat treatment process, thereby obtaining a raw reactive metal powder.
Claims21
-90. (canceled)
A reactive metal powder in-flight heat treatment process comprising:
- contacting a reactive metal powder with an in-flight heat treatment process gas mixture comprising (i) at least one in-flight heat treatment process gas and (ii) at least one additive gas, while carrying out said in-flight heat treatment process to obtain a raw reactive metal powder;
- sieving the raw reactive metal powder to separate the raw reactive metal powder by particle size distributions;
- and
- after the sieving, separately stirring the separated raw material powder in a liquid.
1 more element
A reactive metal powder in-flight heat treatment process comprising:
- contacting a reactive metal powder with an in-flight heat treatment process gas mixture comprising (i) at least one in-flight heat treatment process gas and (ii) at least one additive gas, while carrying out said in-flight heat treatment process to obtain a raw reactive metal powder;
- wherein contacting the reactive metal powder with the in-flight heat treatment process gas mixture comprises forming, with said at least one additive gas, a surface layer on said raw reactive metal powder;
- wherein a particle size distribution of 45 to 106 μm, of 45 to 150 μm, or both of said raw reactive metal powder with said surface layer thereon has a flowability less than 26 s, measured according to ASTM B213,
- sieving the raw reactive metal powder to separate the raw reactive metal powder by particle size distributions;
- and
- after the sieving, separately stirring the separated raw material powder in liquid.
3 more elements
Dependencies are inferred from the claim text.