Electrochemical Characteristics of Niiro -colored Cupper Colored by Japanese Traditional Craft-technique
Electrochemical Characteristics of Niiro -colored Cupper Colored by Japanese Traditional Craft-technique
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日本传统工艺着色的镍色铜的电化学特性
DOI：
10.2320/jinstmet1952.66.12_1356
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发表时间：
2002
影响因子：
--
通讯作者：
Tomohide Matsushima
中科院分区：
文献类型：
--
作者：
M. Kitada;F. Kirino;T. Tsuru;K. Sugimoto;Tomohide Matsushima
研究了日本传统工艺着色的Niiro着色铜的电化学特性和腐蚀行为。样品在含有CuSO_4、人造孔雀石粉和明矾的溶液中着色。Niiro着色Cu的氧化电位高于未处理Cu，表明Niiro着色Cu的耐蚀性高于未处理Cu。虽然未处理的Cu的反应电子数约为2，但在pH为2 ~ 8的溶液中，Niiro着色的Cu的数目为1。Niiro着色的Cu表面由化学双层组成。薄的上层是氧化铜（II）如CuO，下层是氧化铜（I）如Cu 2 O。当试样在353 K、90 ℃ RH的环境中暴露时，Ni-Cr-Cu合金显示出良好的耐蚀性。在pH值为8.3的含Cl溶液中，Ni-Cr着色Cu的氧化电位比未着色Cu的氧化电位高。
The electrochemical characteristics and corrosion behavior of Niirocolored Cu, colored by a traditional Japanese craft technique, have been investigated. The specimens are colored in a solution containing CuSO4, artificial malachite powder and alum. The oxidation potential of Niirocolored Cu is higher than that of untreated Cu, indicating that the corrosion resistance of Niiro colored Cu is higher than that of untreated Cu. Although the reaction electron number of untreated Cu is approximately two, the number of Niirocolored Cu is unity in 28 pH solutions. The Niirocolored Cu surface consists of double layers chemically. The thin upper layer is a copper(II) oxide such as CuO and the underlayer is a copper(I) oxide such as Cu2O. Niirocolored Cu shows good corrosion resistance when the specimens are exposed at 353 K in 90RH atmosphere. The oxidation potential of Niiro colored Cu in a solution containing Cl of 8.3 pH is higher than that of untreated Cu.