Effect of direct electric current on wetting behavior of molten Bi on Cu substrate

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	Effect of direct electric current on wetting behavior of molten Bi on Cu substrate
	Q. G. Xu; X. B. Liu; H. F. Zhang
	2010
发表期刊	Transactions of Nonferrous Metals Society of China
ISSN	1003-6326
卷号	20 期号:8 页码:1452-1457
摘要	The effect of direct electric current on the wetting behavior of molten Bi on Cu substrate at 370 degrees C was investigated by the sessile drop method. The wettability of molten Bi on Cu without an applied current is poor and the spreading time required to form the steady-state contact angle (about 102 degrees) is approximately 30 min With the increase of the applied electric current, the spreading of molten Bi on Cu is accelerated significantly and the steady-state contact angle decreases considerably. The cross-section SEM micrographs of the solidified Bi droplet on Cu substrate show that the electric current has a marked effect on the convection of melt. Correspondingly, the application of an electric current obviously enhances the dissolution of Cu into Bi melt, which may change the wetting triple line configuration. The improvement of wettability induced by electric current is also related to the additional driving force for wetting provided by the electromagnetic pressure gradient force.
部门归属	[xu qian-gang; liu xi-bei] shenyang inst aeronaut engn, dept mat sci & engn, shenyang 110136, peoples r china. [zhang hai-feng] chinese acad sci, inst met res, shenyang 110016, peoples r china.;xu, qg (reprint author), shenyang inst aeronaut engn, dept mat sci & engn, shenyang 110136, peoples r china;xu-qiangang@163.com
关键词	Wetting Dissolution Surface And Interface Spreading Wettability
URL	查看原文
WOS记录号	WOS:000282036100016
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31612
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Q. G. Xu,X. B. Liu,H. F. Zhang. Effect of direct electric current on wetting behavior of molten Bi on Cu substrate[J]. Transactions of Nonferrous Metals Society of China,2010,20(8):1452-1457.
APA	Q. G. Xu,X. B. Liu,&H. F. Zhang.(2010).Effect of direct electric current on wetting behavior of molten Bi on Cu substrate.Transactions of Nonferrous Metals Society of China,20(8),1452-1457.
MLA	Q. G. Xu,et al."Effect of direct electric current on wetting behavior of molten Bi on Cu substrate".Transactions of Nonferrous Metals Society of China 20.8(2010):1452-1457.