Heat treatment of Nd1+xBa2-xCu3O7-delta superconductors

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	Heat treatment of Nd1+xBa2-xCu3O7-delta superconductors
	Z. G. Fan; P. Z. Si; D. W. Soh
	2003
发表期刊	Journal of Rare Earths
ISSN	1002-0721
卷号	21 期号:2 页码:198-200
摘要	Two kinds of Nd1+xBa2-xCu3O7-delta, the sintered samples and zone melted samples, were treated in pure Ar at 950degreesC. The substitution of Nd ions for Ba ions in the Nd1+xBa2-xCu3O7-delta before and after the heat treatment was investigated by XRD. In order to know the effects of heat treatment, the T-c and J(c) of samples with and without the heat treatment in Ar were comparatively studied. The results show that the substitution of Nd for Ba decreases, whereas T-c and J(c) increase after the treatment. The Nd1+xBa1-xCu3O7-delta samples were oxygenated in pure oxygen at 300degreesC. Based on the XRD spectra it was found that the samples with x < 0.4 can transform from tetragonal phase into orthorhombic phase after the oxygenation, whereas in the sample with x > 0.4 no phase transition occurs even after a long time oxygenation.
部门归属	northeastern univ, sch mat sci & met, shenyang 110006, peoples r china. chinese acad sci, inst met res, shenyang 110016, peoples r china. myongji univ, yongin 449728, south korea.;fan, zg (reprint author), northeastern univ, sch mat sci & met, shenyang 110006, peoples r china
关键词	Inorganic Nonmetallic Materials nd1+xba2-xcu3o7-delta Superconductors Heat Treatment Solid Solubility Superconductivity Rare Earths Melt
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WOS记录号	WOS:000183406400025
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/35826
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. G. Fan,P. Z. Si,D. W. Soh. Heat treatment of Nd1+xBa2-xCu3O7-delta superconductors[J]. Journal of Rare Earths,2003,21(2):198-200.
APA	Z. G. Fan,P. Z. Si,&D. W. Soh.(2003).Heat treatment of Nd1+xBa2-xCu3O7-delta superconductors.Journal of Rare Earths,21(2),198-200.
MLA	Z. G. Fan,et al."Heat treatment of Nd1+xBa2-xCu3O7-delta superconductors".Journal of Rare Earths 21.2(2003):198-200.