Isotropic Low Thermal Expansion over a Wide Temperature Range in Ti1-xZrxF3+x (0.1 <= x <= 0.5) Solid Solutions
文献类型：期刊论文
| 作者 | Yang, C; Zhang, YG; Bai, JM; Tong, P; Lin, JC; Tong, HY; Zhang, L; Wen, W; Zhang, XM; Sun, YP |
| 刊名 | INORGANIC CHEMISTRY
 |
| 出版日期 | 2018 |
| 卷号 | 57期号:22页码:14396-14400 |
| 关键词 | PHASE-TRANSITIONS ZERO DIFFRACTION BEHAVIOR FE |
| ISSN号 | 0020-1669 |
| DOI | 10.1021/acs.inorgchem.8b02593 |
| 文献子类 | 期刊论文 |
| 英文摘要 | TiF3 exhibits a rhombohedral to ReO3-type cubic phase transformation at similar to 340 K. Here we report that, by introducing ZrF4 into TiF3, the cubic phase is stabilized at least down to 123 K in the Ti1-xZrxF3+x, compounds. All compounds exhibit low thermal expansion (LTE) between 123 and 623 K, and a nearly zero thermal expansion (ZTE) was obtained in Ti0.7Zr0.3F3.3 (alpha(L) = 0.91 ppm/K). The analysis of pair distribution function reveals that the cation-centered octahedra are partially changed to pentagonal bipyramids in Ti1-xZrxF3+x, due to the excess fluorines relative to the case of TiF3. Therefore, the cooperative rotation of the polyhedra tends to be restricted, and the cubic phase is thus stabilized. The restrained polyhedral rotations compete against the lattice softening caused by the introduction of Zr4+, giving rise to the LTE. Our present strategy is applicable to other rhombohedral metal trifluorides for the design of new isotropic ZTE materials. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31006]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Brookhaven Natl Lab, Natl Synchrotron Light Source 2, Upton, NY 11973 USA 2.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Anhui, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 200120, Peoples R China 4.Chinese Acad Sci, High Field Magnet Lab, Hefei 230031, Anhui, Peoples R China 5.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, C,Zhang, YG,Bai, JM,et al. Isotropic Low Thermal Expansion over a Wide Temperature Range in Ti1-xZrxF3+x (0.1 <= x <= 0.5) Solid Solutions[J]. INORGANIC CHEMISTRY,2018,57(22):14396-14400. |
| APA | Yang, C.,Zhang, YG.,Bai, JM.,Tong, P.,Lin, JC.,...&Sun, YP.(2018).Isotropic Low Thermal Expansion over a Wide Temperature Range in Ti1-xZrxF3+x (0.1 <= x <= 0.5) Solid Solutions.INORGANIC CHEMISTRY,57(22),14396-14400. |
| MLA | Yang, C,et al."Isotropic Low Thermal Expansion over a Wide Temperature Range in Ti1-xZrxF3+x (0.1 <= x <= 0.5) Solid Solutions".INORGANIC CHEMISTRY 57.22(2018):14396-14400. |
入库方式： OAI收割
来源：上海应用物理研究所
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