Crystal structure and negative thermal expansion of solid solution Y2W3-xMoxO12
文献类型：期刊论文
| 作者 | Peng J(彭杰); Peng, J ; Liu, XZ; Guo, FL; Han, SB; Liu, YT; Chen, DF; Hu, ZB
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| 刊名 | INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
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| 出版日期 | 2010 |
| 卷号 | 17期号:6页码:786-790 |
| 关键词 | rare earth compounds molybdates rare-earth tungstates negative thermal expansion X-ray diffraction |
| 通讯作者 | [Peng, Jie] Chinese Acad Sci, Inst High Energy Phys, Expt Phys Ctr, Beijing 100049, Peoples R China ; [Peng, Jie ; Hu, Zhong-bo] Chinese Acad Sci, Grad Univ, Coll Chem & Chem Engn, Beijing 100049, Peoples R China ; [Liu, Xin-zhi ; Han, Song-bai ; Liu, Yun-tao ; Chen, Dong-feng] China Inst Atom Energy, Beijing 102413, Peoples R China ; [Guo, Fu-li] Beijing Normal Univ, Coll Chem, Beijing 100875, Peoples R China |
| 英文摘要 | A new series of solid solutions Lu(2)W(3-x)Mco(x)O(12) (0.5 <= x <= 2.5) were successfully synthesized by the solid-state method. Their crystal structure and negative thermal expansion properties were studied using high-temperature X-ray powder diffraction and the Rietveld method. All samples of rare-earth tungstates and molybdates are found to crystallize in the same orthorhombic structure with space group Pnca and show the negative thermal expansion phenomena related to transverse vibration of bridging oxygen atoms in the structure. Thermal expansion coefficients (TEC) of Lu2W3-xMoxO12 are determined as -20.0x10(-6) K-1 for x=0.5 and -16.1x10(-6) K-1 for x=2.5 but -18.6x10(-6) and -16.9x10(-6) K-1 for unsubstituted Lu2W3O12 and Lu2Mo3O12 in the identical temperature range of 200 to 800 C. High-temperature X-ray diffraction (XRD) data and bond length analysis suggest that the difference between W-O and Mo-O bond is responsible for the change of TECs after the element substitution in this series of solid solutions. |
| 学科主题 | Materials Science; Metallurgy & Metallurgical Engineering; Mining & Mineral Processing |
| 类目[WOS] | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing |
| 研究领域[WOS] | Materials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000285164200019 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/238484]  |
| 专题 | 高能物理研究所_实验物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Peng J,Peng, J,Liu, XZ,et al. Crystal structure and negative thermal expansion of solid solution Y2W3-xMoxO12[J]. INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,2010,17(6):786-790. |
| APA | 彭杰.,Peng, J.,Liu, XZ.,Guo, FL.,Han, SB.,...&Hu, ZB.(2010).Crystal structure and negative thermal expansion of solid solution Y2W3-xMoxO12.INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,17(6),786-790. |
| MLA | 彭杰,et al."Crystal structure and negative thermal expansion of solid solution Y2W3-xMoxO12".INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS 17.6(2010):786-790. |
入库方式： OAI收割
来源：高能物理研究所
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