SEM observation on the nucleation and grain growth of Bi-2223 phase in Ag-sheathed BSCCO tapes

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	SEM observation on the nucleation and grain growth of Bi-2223 phase in Ag-sheathed BSCCO tapes
	C. H. Jiang; J. M. Yoo; G. W. Qiao; H. Kumakura
	2005
发表期刊	Ieee Transactions on Applied Superconductivity
ISSN	1051-8223
卷号	15 期号:2 页码:2462-2465
摘要	The SEM observation on the surface morphologies of quenched Bi-2223/Ag tapes after various sintering time indicates that Bi-2223 grains nucleated on the partially melted Bi-2212 grains at the initial stage of reaction and some of them were in the form of twin grains. Then they grew into plate-like grains with the growth of the twin grains and the consumption of the mother Bi-2212 grains. Remarkably, at the growth fronts of Bi-2223 grains the growth steps show the existence of preferential growing sites, which played an important role during the whole growing process of Bi-2223 grains. The appearance of preferential growing sites Is thought to be related to the inhomogeneously distributed chemical composition and liquid phase in the reaction system. Based on the microstructure observation and kinetic analysis, it is suggested that both the intercalation process and the two dimensional diffusion controlled nucleation and growth process might be responsible for the nucleation of Bi-2223 phase, but with only the later accounting for the 2223 grain growth.
部门归属	natl inst mat sci, tsukuba, ibaraki 3050047, japan. korea inst machinery & mat, chang won 641010, south korea. chinese acad sci, inst met res, shenyang 110016, peoples r china.;jiang, ch (reprint author), natl inst mat sci, tsukuba, ibaraki 3050047, japan;jiang.chunhai@nims.go.jp yjm1682@kmail.kimm.re.kr gwqiao@imr.ac.cn kumakura.hiroaki@nims.go.jp
关键词	Bi-2223/ag Tapes Grain Growth Nucleation Phase Formation Mechanism Kinetics
URL	查看原文
WOS记录号	WOS:000229767200008
引用统计	被引频次：2[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/321006/34881
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	C. H. Jiang,J. M. Yoo,G. W. Qiao,et al. SEM observation on the nucleation and grain growth of Bi-2223 phase in Ag-sheathed BSCCO tapes[J]. Ieee Transactions on Applied Superconductivity,2005,15(2):2462-2465.
APA	C. H. Jiang,J. M. Yoo,G. W. Qiao,&H. Kumakura.(2005).SEM observation on the nucleation and grain growth of Bi-2223 phase in Ag-sheathed BSCCO tapes.Ieee Transactions on Applied Superconductivity,15(2),2462-2465.
MLA	C. H. Jiang,et al."SEM observation on the nucleation and grain growth of Bi-2223 phase in Ag-sheathed BSCCO tapes".Ieee Transactions on Applied Superconductivity 15.2(2005):2462-2465.