Characterization of the negative thermal expansion material Zr1-xHfxW2O8
文献类型：期刊论文
| 作者 | Shen, R ; Wang, C ; Wang, TM ; Dong, C ; Chen, H ; Liang, JK |
| 刊名 | RARE METALS
 |
| 出版日期 | 2003 |
| 卷号 | 22期号:2页码:107 |
| 关键词 | PHASE-TRANSITIONS ZRW2O8 PRESSURE TEMPERATURE HFW2O8 |
| ISSN号 | 1001-0521 |
| 通讯作者 | Wang, TM: Beijing Univ Aeronaut & Astronaut, Sch Sci, Ctr Mat Phys & Chem, Beijing 100083, Peoples R China. |
| 中文摘要 | The oxide ZrW2O8 displays unusual property of isotropic negative thermal expansion in a large wide temperature range, which makes it have a number of important potential applications. The cubic Zr(1-x)Hfx(2)O(8) (x = 0, 0.3, 0.5, 0.7, and 1.0) were-synthesized by standard solid state reaction technique. The high and low temperature X-ray diffraction analysis indicate that the substitution of the Hf4+ for Zr4+ only leads to reducing the lattice constants, and the changes of negative thermal expansion coefficients are not obvious. The linear expansion coefficients of Zr1-xHfxW2O8 (x = 0, 0.3, 0.5, 0.7, and 1.0) are about -6 x 10(-6) K-1 in the temperature range of 298 to 973 K, while that of Zr0.5Hf0.5W2O8 is -9.6 x 10(-6) K-1 from 83 to 298 K. The phase transition temperatures from alpha-ZrW2O8 to beta-ZrW2O8 structure were also determined by X-ray diffraction method. Thennogravimetric analysis (TGA) exhibits that Zr1-xHfxW2O8 is not hygroscopic in air. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/34659]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Shen, R,Wang, C,Wang, TM,et al. Characterization of the negative thermal expansion material Zr1-xHfxW2O8[J]. RARE METALS,2003,22(2):107. |
| APA | Shen, R,Wang, C,Wang, TM,Dong, C,Chen, H,&Liang, JK.(2003).Characterization of the negative thermal expansion material Zr1-xHfxW2O8.RARE METALS,22(2),107. |
| MLA | Shen, R,et al."Characterization of the negative thermal expansion material Zr1-xHfxW2O8".RARE METALS 22.2(2003):107. |
入库方式： OAI收割
来源：物理研究所
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