書誌事項
- タイトル別名
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- Effects of Electrolyte Anions on The Formation of Barrier Type Oxide Films on Aluminum
- アルミニウム ノ バリヤーカタ アノード サンカ ヒマク ノ セイセイ キョド
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抄録
Aluminum was anodically oxidized to form barrier type oxide films at 5.0mA/m2 and 20°C in adipate, borate, citrate, oxalate, phosphate, and tartrate solutions of pH=7 at different concentrations between 10-3 and 1.0M. From measurements of the rate of increase in anode potential, dEa/dta, and dissolution rate of Al3+ ions, dWd/dta, the oxide formation current, If, oxide dissolution current, id, and electronic current, ie, were determined as a function of electrolyte concentration. It was found that with increasing concentration, if reaches a maximum between 10-2 and 10-1M after which it decreases considerably, and id reaches a minimum in the same concentration range. The oxide formation current, if, in the 10-1M solutions decreases in the following order: Adipate>Phosphate>Citrate>Tartrate>Oxalate>Borate. The electronic current, ie, is appreciable at 10-3M, while it is negligibly small at concentrations higher than 10-2M. The role of the electrolyte anions on the formation of barrier type oxide films is discussed in terms of the pH-buffering ability and complexing ability of the electrolyte anions.
収録刊行物
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- 金属表面技術
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金属表面技術 33 (5), 225-231, 1982
一般社団法人 表面技術協会
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詳細情報 詳細情報について
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- CRID
- 1390282679088873216
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- NII論文ID
- 130003994509
- 40000776213
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- NII書誌ID
- AN00064951
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- ISSN
- 18843395
- 00260614
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- NDL書誌ID
- 2450218
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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
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- 使用不可