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US 11,600,856 B2Granted
Solution-assisted densification of NaSICON ceramics
AssigneeNational Technology & Engineering Solutions of Sandia, LLC
InventorsJonathan Anton Bock, Erik David Spoerke, Harlan James Brown-Shaklee, Leo J. Small
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Abstract
A sodium-ion conducting NaSICON ceramic can be densified via the addition of a solvent to a NaSICON powder and subsequent pressing under high pressure and mild heat. Densification to ˜90% relative density can be achieved, providing a path toward low-temperature fabrication of Na-ion conductors.
Claims6
A method for fabricating dense NaSICON ceramic, comprising:
- providing a powder of NaSICON particles,
- adding a NaOH solvent to the powder to at least partially dissolve the NaSICON particles in the added NaOH solvent to provide a dissolved solution, and
- applying a sintering pressure and a sintering temperature to the dissolved solution sufficient to reprecipitate NaSICON particles and form a dense NaSICON ceramic.
Dependencies are inferred from the claim text.