Crystal structure and negative thermal expansion of solid solution Yb2W3-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, Z |
| 刊名 | MATERIALS AT HIGH TEMPERATURES
 |
| 出版日期 | 2010 |
| 卷号 | 27期号:2页码:#REF! |
| 关键词 | negative thermal expansion X-ray diffraction rare-earth molybdates rare-earth tungstates |
| 通讯作者 | Peng, J (reprint author), CAS, Expt Phys Ctr, Inst High Energy Phys, Beijing 100049, Peoples R China. |
| 英文摘要 | A new series of solid solutions Yb2W3-xMoxO12 (0: 5 <= x <= 2: 5) were successfully synthesized by the high-temperature 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 were 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 Yb2W3-xMoxO12 were determined as -18.3 x 10(-6) K-1 for x = 0.5 and -19.6 x 10(-6) K-1 for x = 2.5 comparing to -19.1 x 10(-6) K-1 and -18.3 x 10(-6) K-1 for unsubstituted Yb2W3O12 and Yb2Mo3O12 in the identical temperature range of 200-800 degrees C. High temperature X-ray diffraction 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 |
| 类目[WOS] | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 收录类别 | SCI |
| WOS记录号 | WOS:000279589100010 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/226519]  |
| 专题 | 高能物理研究所_实验物理中心 |
| 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 Yb2W3-xMoxO12[J]. MATERIALS AT HIGH TEMPERATURES,2010,27(2):#REF!. |
| APA | 彭杰.,Peng, J.,Liu, XZ.,Guo, FL.,Han, SB.,...&Hu, Z.(2010).Crystal structure and negative thermal expansion of solid solution Yb2W3-xMoxO12.MATERIALS AT HIGH TEMPERATURES,27(2),#REF!. |
| MLA | 彭杰,et al."Crystal structure and negative thermal expansion of solid solution Yb2W3-xMoxO12".MATERIALS AT HIGH TEMPERATURES 27.2(2010):#REF!. |
入库方式： OAI收割
来源：高能物理研究所
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