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US 2025/0050411 A1Published application
Porous agglomerates and encapsulated agglomerates for abradable sealant materials and methods of manufacturing the same
AssigneeOerlikon Metco (US) Inc.
InventorYi HU
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Abstract
A powder agglomerate for an abradable sealant coating is provided that includes a first powder having a pure metal or a metal alloy; and a second powder including a mineral, in which the powder agglomerate has at least one morphology selected from a porous agglomerate, a hollow agglomerate, a complex agglomerate, and a composite agglomerate. A powder agglomeration method that does not use fugitive phases and porosity formers, such as polymers, is also provided.
Claims24
A powder agglomerate comprising:
- a first powder comprising 10-90 wt % of a pure metal or a metal alloy;
- and
- a second powder comprising a mineral, and
- wherein the powder agglomerate comprises at least one morphology selected from the group consisting of a porous agglomerate, a hollow agglomerate, a complex agglomerate, and a composite agglomerate.
1 more element
A method for manufacturing a powder agglomerate, comprising:
- (a) blending at least one primary feedstock into a slurry mixture with a liquid chemical substance, wherein the at least one primary feedstock comprises a metallic powder material, a non-metallic material, or a mixture of the metallic powder and the non-metallic material;
- (b) dispersing the slurry mixture obtained in (a) through a hot gas stream of more than 150° C. into a drying chamber by an atomizer or a spray nozzle;
- and
- (c) obtaining the powder agglomerate by separating particles from the hot gas stream.
1 more element
Dependencies are inferred from the claim text.