Microstructure and electromagnetic properties of Bi-2223 Ag alloy sheathed tapes prepared by a controlled melting process

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	Microstructure and electromagnetic properties of Bi-2223 Ag alloy sheathed tapes prepared by a controlled melting process
	Hua, L ; Yoo, JM ; Kim, HD ; Chung, HS ; Qiao, GW ; Yuan, GS
刊名	PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
	2000-07-01
卷号	337 期号:1-4 页码:165-168
关键词	Bi-2223/Ag tapes Ag alloy sheath critical current density
ISSN号	0921-4534
通讯作者	Hua, L(lhua@usa.net)
英文摘要	The Bi-2223 superconducting tapes with the sheath of Ag-Au-Al and Ag-Au-Mg alloys were fabricated by the controlled melting (CM) process. It was found that the CM process is effective for eliminating weak links and improving the transport properties of Bi-2223 Ag alloy sheathed tapes. In the CM process, part of Bi-2223 is decomposed to Bi-2212 and nonsuperconducting phases because of a short time melting, and then can be recovered in the subsequent press-sinter cycles. In the fully CM-processed tapes, finely dispersed Bi-2212 and secondary phase particles in well-aligned Bi-2223 matrix can be observed. Meanwhile, the improved magnetic field dependence of magnetization and transport critical current density has been achieved through the CM process. The compressive stress in the Ag alloy/oxide interface induced by the fast cooling is decreased due to the low thermal conductivity of Ag alloy sheath. There is no microcracking observed at the interface of the fast-cooled sample. (C) 2000 Published by Elsevier Science B.V.
WOS研究方向	Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000088686400033
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/110629]
专题	金属研究所_中国科学院金属研究所
通讯作者	Hua, L
作者单位	1.Chinese Acad Sci, Met Res Inst, Shenyang 110015, Peoples R China 2.Gen Res Inst NonFerrous Met, Beijing 100088, Peoples R China 3.Korea Inst Machinery & Mat, Chang Won 641010, South Korea
推荐引用方式 GB/T 7714	Hua, L,Yoo, JM,Kim, HD,et al. Microstructure and electromagnetic properties of Bi-2223 Ag alloy sheathed tapes prepared by a controlled melting process[J]. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS,2000,337(1-4):165-168.
APA	Hua, L,Yoo, JM,Kim, HD,Chung, HS,Qiao, GW,&Yuan, GS.(2000).Microstructure and electromagnetic properties of Bi-2223 Ag alloy sheathed tapes prepared by a controlled melting process.PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS,337(1-4),165-168.
MLA	Hua, L,et al."Microstructure and electromagnetic properties of Bi-2223 Ag alloy sheathed tapes prepared by a controlled melting process".PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 337.1-4(2000):165-168.