节点文献

大气中无机盐粒水解过程中的微液滴现象(英文)

Phenomenon of Micro-droplets Formation on Metals during the Deliquescence of Salt Particles in Atmosphere

  • 推荐 CAJ下载
  • PDF下载
  • 不支持迅雷等下载工具,请取消加速工具后下载。

【作者】 张际标王佳王燕华

【Author】 ZHANG, Ji-Biao1,2,3 WANG, Jia4,5 WANG, Yan-Hua4 (1Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071; 2Graduate School of the Chinese Academy of Sciences, Beijing 100049; 3Zhanjiang Ocean University, Zhanjiang 524088; 4Ocean University of China, Qingdao 266003; 5State Key Laboratory for Corrosion and Protection ofMetals, Chinese Academy of Sciences, Shenyang 110016)

【机构】 中国科学院海洋研究所中国海洋大学中国海洋大学 山东青岛266071 中国科学院研究生院北京100049 湛江海洋大学广东湛江524088山东青岛266003 中国科学院金属腐蚀与防护国家重点实验室沈阳110016山东青岛266003

【摘要】 采用改变相对湿度, 无机盐/金属组合, 测定微液滴体系的pH 值和电位分布等方法研究了微液滴形成和生长的特征. 结果表明, 微液滴的形成与大气腐蚀密切相关. 微液滴只在特定的盐粒/金属体系中出现, 微液滴区域具有较高的pH 值和较高的电位分布. 此外, 微液滴形成和生长需要两个前提条件:第一, 环境相对湿度应高于盐粒水解液滴液面的饱和蒸汽压;第二, 在水解液滴下的金属能被液滴腐蚀.

【Abstract】 The characteristics of the formation of micro-droplets were investigated in a humidity-controlled chamber. The results showed that the micro-droplets formation had a close relation with the atmospheric corrosion of metal based on the pH and potential distributions of micro-droplets. Micro-droplets could only appear on high potential area in a corrosive combination of metals and salt particles. Meanwhile, a high value of pH was found in the areas covered with micro-droplets. The formation of micro-droplets needed two premises, one was that the relative humidity should be over the saturated relative humidity of main-droplet, the other was that the metal substrate could be eroded under the main-droplet.

【基金】 国家自然科学基金重大项目(50499336-2)资助~~
  • 【文献出处】 物理化学学报 ,Acta Physico-chimica Sinica , 编辑部邮箱 ,2005年09期
  • 【分类号】X51
  • 【被引频次】5
  • 【下载频次】117
节点文献中: 

本文链接的文献网络图示:

本文的引文网络