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US 12,319,623 B2Granted
Process for improving flash sintering of ceramics and improved ceramics
AssigneeThe Regents of the University of Colorado, a body corporate
InventorsAlan Weimer, Bola Yoon, Rishi Raj, Rebecca O'Toole
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Abstract
Methods of flash sintering have been developed in which particle are initially coated with thin layers by atomic layer deposition (ALD). Examples are provided in which 8 mol % yttria-stabilized zirconia (8YSZ) particles are coated with small quantities of Al2O3 by particle atomic layer deposition (ALD). Sintered materials that result from the process have been characterized. Sintered materials having unique characteristics are also described.
Claims20
A method of flash sintering, comprising:
- providing particles comprising a first phase of boron carbide and having a surface;
- using ALD to grow a film of a second phase on the surface of the particles to form a coated powder composition;
- and
- flash sintering the coated powder composition.
1 more element
Dependencies are inferred from the claim text.