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- NAKAGAWA Tsubasa
- Department of Materials Engineering, School of Engineering, The University of Tokyo
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- NAKAMURA Atsutomo
- Department of Intelligent Materials Engineering, School of Engineering, Osaka City University
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- SAKAGUCHI Isao
- National Institute for Materials Science
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- SHIBATA Naoya
- Institute of Engineering Innovation, The University of Tokyo
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- LAGERLÖF K. Peter. D.
- Department of Materials Science and Engineering, Case Western Reserve University
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- YAMAMOTO Takahisa
- Department of Advanced Materials Science, Graduate School of Frontier Science, The University of Tokyo
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- HANEDA Hajime
- National Institute for Materials Science
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- IKUHARA Yuichi
- Institute of Engineering Innovation, The University of Tokyo
書誌事項
- タイトル別名
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- Oxygen Pipe Diffusion in Sapphire Basal Dislocation
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抄録
The oxygen self-diffusion behavior in deformed sapphire single crystals (α-Al2O3 sapphire) with a high density of unidirectional basal dislocations was examined in the temperature range of 1424-1636°C using 18O isotopes and secondary ion mass spectrometry-depth profiling techniques. The pipe and lattice diffusion kinetics were best described by r2Dp=4.6×10-20 exp (-4.8[eV]/kT) [m4/s] and Dl=2.9×10-1 exp (-5.5[eV]/kT) [m2/s], respectively. Both the magnitude of pre-exponential factor and activation energy for oxygen pipe diffusion were in good agreement with that of indirect measurements of pipe diffusion deduced from the annihilation of dislocation dipoles. The measured bulk diffusion coefficient is also in good agreement with previously reported data having activation energies ranged between 5.5-6.1 eV.<br>
収録刊行物
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- Journal of the Ceramic Society of Japan (日本セラミックス協会学術論文誌)
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Journal of the Ceramic Society of Japan (日本セラミックス協会学術論文誌) 114 (1335), 1013-1017, 2006
公益社団法人 日本セラミックス協会
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詳細情報 詳細情報について
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- CRID
- 1390001205279132928
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- NII論文ID
- 110004837134
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- NII書誌ID
- AN10040326
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- ISSN
- 18821022
- 09145400
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- NDL書誌ID
- 8567542
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可