Hydrogenation of Anodized Aluminum and Crystal Growth of Formed Hydride at High Pressure and High Temperature
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- Saitoh Hiroyuki
- Quantum Beam Science Directorate, Japan Atomic Energy Agency
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- Kato Seiichi
- National Institute for Materials Science
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- Katagiri Masahiko
- Green Mobility Collaborative Research Center, Nagoya University
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Abstract
Anodized aluminum samples with different surface oxide layer thicknesses (approximately 0.3 and 3 µm) were hydrogenated at 9 GPa and 600°C for 24 h. A few large crystals of AlH3, of which average crystal size was 30 µm, were formed when the aluminum sample with the thicker oxide layer was hydrogenated, whereas the sample with the thinner oxide layer was uniformly hydrogenated to form AlH3 crystals 10 µm in particle size. It is likely that the surface oxide layer inhibits not only the hydrogenation reaction of aluminum but also the spontaneous nucleation of AlH3, which causes the difference between the formed crystal sizes.
Journal
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 55 (8), 1114-1116, 2014
The Japan Institute of Metals and Materials
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Details 詳細情報について
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- CRID
- 1390001204253738624
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- NII Article ID
- 130004825215
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- NII Book ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL BIB ID
- 025616819
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed