• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Symposium on Eco-Materials Processing amp; Design; 20060108-11; Chengdu(CN) >The Effect of Tungsten Content on Nanocrystalline Structure of Ni-W Alloy Electrodeposits
【24h】

The Effect of Tungsten Content on Nanocrystalline Structure of Ni-W Alloy Electrodeposits

机译：钨含量对Ni-W合金电沉积纳米晶结构的影响

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

The effects of tungsten content on the nanocrystalline structure of Ni-W alloy electrodeposits were investigated. Direct current electrodeposition was conducted with various W mole fractions in a nickel sulfate solution containing citric acid as a complexing agent. Current efficiency was an almost constant value of 52% up to W mole fraction of 0.58. However, it was sharply decreased owing to severe H_2 evolution with increasing cathode overvoltage at a W mole fraction higher than 0.74. The X-ray diffraction peak was decreased and broadened with increasing W content, and an amorphous pattern appeared clearly at 49 wt.% W. It was confirmed that Ni-W alloy deposit was transformed from crystalline to amorphous structure between 41 and 49 wt.% W. This result was also verified through a TEM analysis.
机译：研究了钨含量对Ni-W合金电沉积纳米晶结构的影响。在含有柠檬酸作为络合剂的硫酸镍溶液中，以各种W摩尔分数进行直流电沉积。直到0.58的W摩尔分数，电流效率几乎是恒定值52％。然而，由于在H摩尔分数高于0.74的情况下随着H 2的严重析出和阴极过电压的增加而急剧下降。 X射线衍射峰随着W含量的增加而减小并变宽，并且在49 wt。％W处清晰地出现了非晶态图案。已确认Ni-W合金沉积物在41至49 wt。％之间从晶体结构转变为非晶结构。 ％W。该结果也通过TEM分析证实。

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