Thermal roughening transition of a dissolved nickel surface
Thermal roughening transition of a dissolved nickel surface
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溶解镍表面的热粗糙化转变
DOI：
10.1088/0022-3727/44/45/455302
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
M. Saitou
中科院分区：
文献类型：
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作者：
Maeda;K.;Kawaida;N.,Tsudome;R.;Sakai;K.;Ikari;T..;津田哲平，櫻井一貴，岡田亘太郎，斎藤秀俊，伊藤治彦;M. Saitou
研究了矩形脉冲电流阳极溶解的多晶镍表面的热粗糙化转变，发现在转变温度下归一化溶解质量的急剧变化与表面粗糙度（光滑或粗糙表面）的变化一致。低于转变温度的归一化溶解质量随矩形脉冲电流的频率呈指数下降，并渐近接近远小于1.0的固定值。高于转变温度的归一化溶出质量几乎等于1.0，与频率无关。归一化的溶解质量的频率依赖性描述的电路模型等效于一个双电层。
A thermal roughening transition in a polycrystalline nickel surface dissolved anodically by a rectangular pulse current is found. The drastic change in normalized dissolution mass at the transition temperature is shown to be consistent with that in surface roughness such as a smooth or rough surface. The normalized dissolution mass below the transition temperature exponentially decreases with the frequency of the rectangular pulse current and asymptotically approaches a fixed value much less than 1.0. The normalized dissolution mass above the transition temperature is almost equal to 1.0 irrespective of the frequency. The frequency dependence of the normalized dissolution mass is described by an electric circuit model equivalent to an electric double layer.