Subsolidus phase relation and crystal structure of the PrBa2-xSrxCu3O7 +/-delta system | |
Song, GB; Liang, JK; Yang, LT; Liu, QL; Liu, GY; Yang, HF; Rao, GH | |
刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
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2004-05-12 | |
卷号 | 370期号:1-2页码:302-306 |
关键词 | Pr123 solid solution ionic radius chemical property substitution |
ISSN号 | 0925-8388 |
DOI | 10.1016/j.jallcom.2003.09.119 |
通讯作者 | Song, GB(gbsong@aphy.iphy.ac.cn) |
英文摘要 | The PrBa2-xSrxCu3O7+/-delta solid solution was investigated by means of X-ray powder diffraction in combination with Rietveld analysis. The Sr-doped Pr123 single phase could be synthesized at 950degreesC in air. The solubility of PrBa2-xSrxCu3O7+/-delta solid solution is 0.2 less than or equal to x less than or equal to 0.6. The structure of PrBa2-xSrxCu3O7+/-delta is orthorhombic for x = 0.2. The structure transforms into tetragonal for 0.3 less than or equal to x less than or equal to 0.6. In the PrBa2-xSrxCu3O7+/-delta structure, Sr ions can replace Ba ions, the highest value is x = 0.6 under our experimental condition. But Sr ions could not replace Pr ions. Furthermore Pr ions could not occupy the sites of Ba ions in the PrBa2-xSrxCu3O7+/-delta system. Both ionic radii and chemical properties play an important role in the mutual substitution of Pr, Ba and Sr ions in the Pr123 structure of the PrBa2-xSrxCu3O7+/-delta system. (C) 2003 Elsevier B.V. All rights reserved. |
WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
语种 | 英语 |
出版者 | ELSEVIER SCIENCE SA |
WOS记录号 | WOS:000221158200056 |
内容类型 | 期刊论文 |
源URL | [http://ir.imr.ac.cn/handle/321006/119151] ![]() |
专题 | 金属研究所_中国科学院金属研究所 |
通讯作者 | Song, GB |
作者单位 | 1.Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Ctr Condensed Mat Phys, Beijing 100080, Peoples R China 3.SW Univ Sci & Technol, Sch Mat Sci & Engn, Mianyang 621002, Peoples R China 4.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China |
推荐引用方式 GB/T 7714 | Song, GB,Liang, JK,Yang, LT,et al. Subsolidus phase relation and crystal structure of the PrBa2-xSrxCu3O7 +/-delta system[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2004,370(1-2):302-306. |
APA | Song, GB.,Liang, JK.,Yang, LT.,Liu, QL.,Liu, GY.,...&Rao, GH.(2004).Subsolidus phase relation and crystal structure of the PrBa2-xSrxCu3O7 +/-delta system.JOURNAL OF ALLOYS AND COMPOUNDS,370(1-2),302-306. |
MLA | Song, GB,et al."Subsolidus phase relation and crystal structure of the PrBa2-xSrxCu3O7 +/-delta system".JOURNAL OF ALLOYS AND COMPOUNDS 370.1-2(2004):302-306. |
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