• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Engineering and Performance >Electrodeposition and Corrosion Properties of Zn-V_2O_5 Composite Coatings
【24h】

Electrodeposition and Corrosion Properties of Zn-V_2O_5 Composite Coatings

机译：Zn-V_2O_5复合涂层的电沉积与腐蚀性能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Composite coatings were obtained by electrochemical codeposition of V_2O_5 nanoparticles with zinc, from an additive free acid sulfate bath. The corrosion behavior of electrodeposited Zn and Zn-V_2O_5 composite coatings was investigated in 3.5% NaCl solution using polarization and electrochemical impedance spectroscopy (EIS). The decrease in I_(corr) values and an increase in R_(ct) values show the higher corrosion resistant nature of Zn-V_2O_5 coatings. The observed textural modifications of composite coatings are associated with the specific structural modification of Zn crystallites provoked by the adsorption-desorption phenomena occurring on the metal surface, induced by the presence of V_2O_5 nanoparticles. It has been observed that the presence of V_2O_5 nanoparticles favors the [102] and [112] texture of zinc matrix. Moreover, the codeposition of V_2O_5 nanoparticles with zinc was found to be favored at pH 3.5 and applied current density 4 A dm~(-2). A considerable grain refinement of the deposit occurred due to incorporation of V_2O_5 nano-particles and hence improved the preferred orientation of the zinc crystallites.
机译：通过从添加剂游离酸硫酸盐浴中用锌对V_2O_5纳米粒子进行电化学共沉积获得复合涂层。利用极化和电化学阻抗谱（EIS）研究了电沉积Zn和Zn-V_2O_5复合涂层在3.5％NaCl溶液中的腐蚀行为。 I_（corr）值的减少和R_（ct）值的增加表明Zn-V_2O_5涂层具有更高的耐腐蚀性。 V_2O_5纳米粒子的存在导致金属表面发生吸附-解吸现象，从而导致复合材料涂层的组织结构发生改变，而锌微晶的结构发生特定变化。已经观察到，V_2O_5纳米颗粒的存在有利于锌基质的[102]和[112]织构。此外，发现V_2O_5纳米粒子与锌的共沉积在pH 3.5和施加的电流密度为4 A dm〜（-2）时较为有利。由于引入了V_2O_5纳米粒子，使沉积物的晶粒细化，从而改善了锌微晶的优选取向。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号