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US 11,254,615 B2Granted
Flash-sintering method for forming interface layer
AssigneeThe Regents of the University of Colorado
InventorsRishi Raj, Niriaina Andriamady, Thomas Clemenceau, Shikhar Jha
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Abstract
Methods of forming structures including a substrate (e.g., ceramic) and an interface layer comprising a metal are disclosed. Structures and electrochemical cells and batteries are also disclosed. Exemplary methods include flash sintering of metal and ceramic materials. Various structures may be suitable for use as solid electrolytes in solid-state electrochemical cells, as well as for many other applications.
Claims13
A method of forming a structure comprising a metal layer, the method comprising the steps of:
- providing a ceramic material;
- depositing a layer of metal on a top surface of the ceramic material to form a coated ceramic material;
- and
- exposing the coated ceramic material to a flash sintering process to reduce a contact angle between metal of the layer of metal on the top surface of the ceramic material to thereby cause the metal to spread on the ceramic material between electrodes used during the flash sintering and form the structure comprising the metal layer on the top surface,
- wherein the flash sintering process comprises applying a voltage across the ceramic material to form an electric field, and
- wherein a thickness of the layer of metal is about one monolayer to about 5 micrometers.
3 more elements
Dependencies are inferred from the claim text.