Addition of nanometer SiC in the silver-sheathed Bi2223 superconducting tapes

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	Addition of nanometer SiC in the silver-sheathed Bi2223 superconducting tapes
	Y. C. Guo; Y. Tanaka; T. Kuroda; S. X. Dou; Z. Q. Yang
	1999
发表期刊	Physica C-Superconductivity and Its Applications
ISSN	0921-4534
卷号	311 期号:1-2 页码:65-74
摘要	Nanometer SiC particles were added to (Bi,Pb)(2)Sr2Ca2Cu3Ox (Bi2223) precursor powders and the powders were transformed into silver-sheathed superconducting tapes by the standard powder-in-tube (PIT) technique. The influence of SiC on the melting temperature, high-ir, (Bi2223) phase formation, microstructure and transport property of the tapes was studied by means of DTA, XRD, SEM/EDX, electrical and magnetic measurements. The results showed that SIC addition lowered the melting temperature of the superconductor powders and consequently, decreased the optimum sintering temperature of the tapes. However, the addition did not affect the Bi2223 phase formation and critical temperature (T-c) of the tapes up to 1.00 wt.% of SiC. Most importantly, the addition of a small amount of SiC (0.15 wt.%) improved the critical current (I-c) and I-c behavior in magnetic field as a result of the enhancement in density, grain alignment, grain connectivity and flux pinning of the tapes. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
部门归属	natl res inst met, res grp 1, ibaraki, osaka 305, japan. univ wollongong, inst superconducting & elect mat, wollongong, nsw 2522, australia. chinese acad sci, inst met res, dept 8, shenyang 110015, liaoning, peoples r china.;guo, yc (reprint author), natl res inst met, res grp 1, 1-2-1 sengen, ibaraki, osaka 305, japan;ycguo@nrim.go.jp
关键词	(Bi Pb)(2)Sr2ca2cu3o10 Nanometer Sic Critical Current Grain Alignment Flux Pinning Cu-o System Critical-current Densities High-tc Superconductors Phase-formation Ag Sheath Pb Microstructure Enhancement Irradiation Powder
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WOS记录号	WOS:000078004000010
引用统计	被引频次：62[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/321006/37359
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. C. Guo,Y. Tanaka,T. Kuroda,et al. Addition of nanometer SiC in the silver-sheathed Bi2223 superconducting tapes[J]. Physica C-Superconductivity and Its Applications,1999,311(1-2):65-74.
APA	Y. C. Guo,Y. Tanaka,T. Kuroda,S. X. Dou,&Z. Q. Yang.(1999).Addition of nanometer SiC in the silver-sheathed Bi2223 superconducting tapes.Physica C-Superconductivity and Its Applications,311(1-2),65-74.
MLA	Y. C. Guo,et al."Addition of nanometer SiC in the silver-sheathed Bi2223 superconducting tapes".Physica C-Superconductivity and Its Applications 311.1-2(1999):65-74.