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US 12,752,340 B2Granted
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.
Claims16
A reactive metal in-flight heat treatment process comprising:
- obtaining a reactive metal powder;
- contacting the 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 that is present at a concentration of less than 1000 ppm in said mixture, while carrying out said in-flight heat treatment process to obtain a raw reactive metal powder;
- and
- imparting, with said at least one additive gas, a component of said additive gas on said raw reactive metal powder,
- wherein a particle size distribution of about 10 to about 53 μm of said raw reactive metal powder has a flowability less than 40 s, measured according to ASTM B213;
- and
- wherein contacting the reactive metal powder with the in-flight heat treatment process gas mixture while carrying out said in-flight heat treatment process to obtain the raw reactive metal powder comprises maintaining a chemical composition of the reactive metal powder within a chemical composition limit for the reactive metal powder according to AMS standards.
4 more elements
Dependencies are inferred from the claim text.