書誌事項
- タイトル別名
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- Hydrogen Sorption by Ti(0001) Single Crystal Surfaces.
- Ti 0001 タンケッショウ ヒョウメン デ ノ スイソ キュウシュウ カテイ
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Hydrogen interaction with the Ti (0001) single crystal surface was investigated with Nuclear Reaction Analysis (NRA) using 1H (15N, αγ) 12C. In contrast to thin polycrystalline Ti-films, molecular H2 adsorbs only with a small integral sticking coefficient on the single crystal surface even at 120 K and the H coverage saturates at 1.0 ML. Admission of atomic H at this temperature results in further hydrogen uptake, which saturates after absorption of an additional monolayer of H into subsurface sites. The H diffusion remains restricted up to240 K, causing accumulation of absorbed H in a shallow region of only7 nm depth beneath the surface under atomic H exposure conditions. With a maximum of10 at.% the H-concentration in this thin hydride overlayer remains far below the bulk solubility limit of TiH2. Only above240 K the observed H distributions along the concentration gradient into the bulk are in agreement with extrapolated diffusion data for α-Ti.
収録刊行物
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- 真空
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真空 45 (5), 458-462, 2002
一般社団法人 日本真空学会
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詳細情報 詳細情報について
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- CRID
- 1390282679041528576
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- NII論文ID
- 10008831103
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- NII書誌ID
- AN00119871
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- ISSN
- 18809413
- 05598516
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- NDL書誌ID
- 6193467
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- 本文言語コード
- ja
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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
