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US 2019/0160528 A1Published application
Method and apparatus for improving powder flowability
AssigneeHamilton Sundstrand Corporation
InventorsRandolph Carlton McGee, Ying She, Aaron T. Nardi
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Abstract
An example method of modifying a powder according to the present disclosure includes contacting a powder comprising particles with a nitrogen-containing gas and improved flowability of the powder. A method of providing a powder and a reactor are also disclosed.
Claims20
A method of modifying a powder, comprising:
- contacting a powder comprising particles with a nitrogen-containing gas;
- and
- improving flowability of the powder.
The method of claim 6, wherein the reduction in cohesion between particles is due to a reduction in polar forces between particles.
A method for providing a powder, comprising:
- contacting a powder comprising metallic particles with a nitrogen-containing gas, whereby the contacting results in improvement in flowability of the powder due to replacement of oxygen-containing groups on surfaces of the metallic particles with nitrogen-containing groups.
A reactor, comprising:
- a fluidized bed, the fluidized bed operable to contact a powder comprising particles with a nitrogen-containing gas, wherein the contacting improves flowability of the powder.
Dependencies are inferred from the claim text.