| 摘要 |
A composite ceramic electrolyte is provided. The composite ceramic electrolyte has a microstructure, which comprises a first ceramic composition comprising a plurality of nano-dimensional microcracks, and a second ceramic composition substantially embedded within at least a portion of the plurality of nano-dimensional microcracks. The first and the second compositions are different. A solid oxide fuel cell comprising a composite ceramic electrolyte having such a microstructure is provided. A method of making a composite ceramic electrolyte is also described. The method includes the steps of: providing a first ceramic composition comprising a plurality of nano-dimensional microcracks; and closing a number of the nano-dimensional microcracks with a second ceramic composition, wherein the first and the second compositions are different, so as to form a composite ceramic electrolyte having a microstructure which comprises a first ceramic composition comprising a plurality of nano-dimensional microcracks and a second ceramic composition substantially embedded within at least a portion of the plurality of nano-dimensional microcracks.
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