Micro-droplets formation during the deliquescence of salt particles in atmosphere

	Micro-droplets formation during the deliquescence of salt particles in atmosphere
	Zhang, J; Wang, J ; Wang, Y
	2005-12-01
发表期刊	CORROSION
卷号	61 期号:12 页码:1167-1172
文章类型	Article
摘要	The formation of the electrolyte droplet caused by the deliquescence of soluble salt particles is one cause for the acceleration of atmospheric corrosion. In this paper, a lot of microdroplets, 1 mu m to similar to 10 mu m in diameter, were observed around the edge of the main-droplet formed by the deliquescence of a single salt particle deposited on metals in atmosphere. Two preconditions were needed for the formation of micro-droplets. One was that the relative humidity (RH) in atmosphere should be over the saturated RH of the main-droplet. The other was that the metal substrate could be eroded under the maindroplet. The corrosion current was proven to be the driving force for the formation of micro-droplets by electrochemical polarization. Based on the surface analyses of scanning electron microscopy (SEM) and energy-dispersive spectroscopy (EDS), there were some sodium cations and a few chloride anions in micro-droplets for a main-droplet of sodium chloride (NaCl). The formation of invisible water clusters and water film, synergistic action of the oxygen reduction and the water molecule adsorption, and migration of cations in the main-droplet were regarded as the main phases for the formation of microdroplets.
关键词	Atmospheric Corrosion Electrochemical Polarization Micro-droplets Formation Salt Particles
收录类别	SCI
语种	英语
WOS记录号	WOS:000234241900005
引用统计	被引频次：20[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/32518
专题	海洋环境腐蚀与生物污损重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Ocean Univ China, Qingdao 266003, Peoples R China 3.State Key Lab Corros & Protect Met, Shenyang 110015, Peoples R China
推荐引用方式 GB/T 7714	Zhang, J,Wang, J,Wang, Y. Micro-droplets formation during the deliquescence of salt particles in atmosphere[J]. CORROSION,2005,61(12):1167-1172.
APA	Zhang, J,Wang, J,&Wang, Y.(2005).Micro-droplets formation during the deliquescence of salt particles in atmosphere.CORROSION,61(12),1167-1172.
MLA	Zhang, J,et al."Micro-droplets formation during the deliquescence of salt particles in atmosphere".CORROSION 61.12(2005):1167-1172.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Micro-droplets forma（165KB）	期刊论文	出版稿	限制开放	ODC PDDL	浏览