Subsolidus phase relations and crystal structure of compounds in the PrOx-CaO-CuO system
文献类型：期刊论文
| 作者 | G. B. Song ; C. Q. Han ; X. L. Chen ; J. K. Liang ; Q. L. Liu ; Y. Q. Zhou ; F. S. Liu ; G. H. Rao |
| 刊名 | Journal of Solid State Chemistry
 |
| 出版日期 | 2004 |
| 卷号 | 177期号:7页码:2394-2403 |
| 关键词 | phase relations crystal structure Pr-Ca-Cu-O system Ca10Pr4CU24O41 Ca2Pr2CU5O10 solid solution high-pressure synthesis neutron-diffraction o system superconductivity nacuo2 diagram nd gd |
| ISSN号 | 0022-4596 |
| 中文摘要 | The subsolidus phase relations of the PrOx-CaO-CuO pseudo-ternary system sintered at 950-1000degreesC have been investigated by X-ray powder diffraction. In this system, there exist one compound Ca10Pr4Cu24O41, one Ca2Pr2Cu5O10-bascd solid solution, seven three-phase regions and two two-phase regions. The crystal structures of Ca10Pr4Cu24O41, and Ca2Pr2Cu5O10-based solid solution have been determined. Compound Ca10Pr4Cu24O41 crystallizes in an orthorhombic cell with space group D-2h(20) - Cccm, Z = 4. Its lattice parameters are a = 11.278(2) Angstrom, b = 12.448(3) Angstrom and c = 27.486(8) Angstrom. The crystal structure of Ca2Pr2Cu5O10-based solid solution is an incommensurate phase based on the orthorhombic NaCuO2 type subcell. The lattice parameters of the subcell of the Ca2.4Pr1.6Cu5O10 are a(0) = 2.8246(7) Angstrom, b(0) = 6.3693(5) Angstrom, c(0) = 10.679(1) Angstrom, and those of the orthorhombic superstructure are with a = 5a(0), b = b(0), c = 5c(0). The Ca2.4Pr1.6Cu5O10 structure can also be determined by using a monoclinic supercell with space group C-2h(5) - P2(1)/c, Z = 4, a = 5a(0), b = b(0), c = c(0)/sin beta and beta = 104.79(1)degrees or 136.60(1)degrees, V = 5a(0)b(0)c(0). (C) 2004 Elsevier Inc. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35548]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | G. B. Song,C. Q. Han,X. L. Chen,et al. Subsolidus phase relations and crystal structure of compounds in the PrOx-CaO-CuO system[J]. Journal of Solid State Chemistry,2004,177(7):2394-2403. |
| APA | G. B. Song.,C. Q. Han.,X. L. Chen.,J. K. Liang.,Q. L. Liu.,...&G. H. Rao.(2004).Subsolidus phase relations and crystal structure of compounds in the PrOx-CaO-CuO system.Journal of Solid State Chemistry,177(7),2394-2403. |
| MLA | G. B. Song,et al."Subsolidus phase relations and crystal structure of compounds in the PrOx-CaO-CuO system".Journal of Solid State Chemistry 177.7(2004):2394-2403. |
入库方式： OAI收割
来源：金属研究所
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