2016年12月
シュウ酸浴からのAl2O3複合Cr-C合金めっき
表面技術
- ,
- 巻
- 67
- 号
- 12
- 開始ページ
- 685
- 終了ページ
- 688
- 記述言語
- 日本語
- 掲載種別
- DOI
- 10.4139/sfj.67.685
- 出版者・発行元
- 一般社団法人 表面技術協会
<p>Electrodeposited Al2O3 composite Cr-C alloy coatings were produced from an oxalic acid bath prepared by adding oxalic acid to a hot CrO3 solution. Chromium ions in the oxalic bath include Cr3+ oxalate complex and Cr6+ ions. The Al2O3 particles were co-deposited easily along with the Cr-C alloy coating from the oxalic bath. The content was controlled up to about 3 wt% by plating conditions. The Al2O3 contents of the coatings decreased with current density and increased with bath temperature. The added amount of oxalic acid at make-up of the bath increased the Al2O3 contents of the coatings. The co-deposition mechanism was supported with a two-step adsorption mechanism proposed by Guglielmi, but the adsorption of Al2O3 tothe cathode in the oxalic bath was much weaker than that of either Ni composite plating or Cr composite plating.</p>
- リンク情報
- ID情報
-
- DOI : 10.4139/sfj.67.685
- CiNii Articles ID : 130006236567