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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 33, Number 5
BKCSDE 33(5)
May 20, 2012

Title	Electrochemical Thinning for Anodic Aluminum Oxide and Anodic Titanium Oxide
Author	Inhae Lee, Yunkyoung Jo, Yong-Tae Kim, Yongsug Tak,* Jinsub Choi*
Keywords	Titanium oxide, Aluminum oxide, Anodization, Barrier oxide
Abstract	For given electrolytes, different behaviors of anodic aluminum oxide (AAO) and anodic titanium oxide (ATO) during electrochemical thinning are explained by ionic and electronic current modes. Branched structures are unavoidably created in AAO since the switch of ionic to electronic current is slow, whereas the barrier oxide in ATO is thinned without formation of the branched structures. In addition, pore opening can be possible in ATO if chemical etching is performed after the thinning process. The thinning was optimized for complete pore opening in ATO and potential-current behavior is interpreted in terms of ionic current-electronic current switching.
Page	1465 - 1469
Full Text	PDF

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