Grain-size-dependent thermal conductivity of nanocrystalline yttria-stabilized zirconia films grown by metal-organic chemical vapor deposition
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- G. Soyez
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439
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- J. A. Eastman
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439
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- L. J. Thompson
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439
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- G.-R. Bai
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439
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- P. M. Baldo
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439
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- A. W. McCormick
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439
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- R. J. DiMelfi
- Reactor Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439
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- A. A. Elmustafa
- Department of Materials Science and Engineering, University of Wisconsin, Madison, Wisconsin 53706
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- M. F. Tambwe
- Department of Materials Science and Engineering, University of Wisconsin, Madison, Wisconsin 53706
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- D. S. Stone
- Department of Materials Science and Engineering, University of Wisconsin, Madison, Wisconsin 53706
書誌事項
- 公開日
- 2000-08-21
- DOI
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- 10.1063/1.1289803
- 公開者
- AIP Publishing
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説明
<jats:p>A grain-size-dependent reduction in the room-temperature thermal conductivity of nanocrystalline yttria-stabilized zirconia is reported for the first time. Films were grown by metal-organic chemical vapor deposition with controlled grain sizes from 10 to 100 nm. For grain sizes smaller than approximately 30 nm, a substantial reduction in thermal conductivity was observed, reaching a value of less than one-third the bulk value at the smallest grain sizes measured. The observed behavior is consistent with expectations based on an estimation of the phonon mean-free path in zirconia.</jats:p>
収録刊行物
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- Applied Physics Letters
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Applied Physics Letters 77 (8), 1155-1157, 2000-08-21
AIP Publishing
