High-pressure synthesis and properties of CeO2-ZrO2 solid solution
文献类型：期刊论文
| 作者 | D. P. Xu ; Q. Y. Wang ; Z. Lu ; Z. G. Liu ; G. M. Zhang ; W. H. Su |
| 刊名 | Chinese Science Bulletin
 |
| 出版日期 | 2001 |
| 卷号 | 46期号:10页码:801-806 |
| 关键词 | CeO2-ZrO2 nanocrystalline high pressure and -temperature solid-state reaction solid solution hydrothermal synthesis electrical-properties nanocrystalline stability system |
| ISSN号 | 1001-6538 |
| 中文摘要 | Using nanoparticles of CeO2 and ZrO2 prepared by the chemical precipitation method as starting materials, the single-phase cubic Ce0.5Zr0.5O2 solid solution (c-Ce0.5Zr0.5O2) has been synthesized under 3.1 GPa at 1073 K for the first time. The structure of the c-Ce0.5Zr0.5O2 has not been changed before and after annealing at 773 K for 1 h. Only an unknown EPR signal (g = 1.990) has been observed in the c-Ce0.5Zr0.5O2 and not varied after annealing at 773 K for 1 h, which exhibited that there exists no Ce3+ in the c-Ce0.5Zr0.5O2 and the Ce4+ has not been reduced into Ce3+ after annealing. The transport mechanism is ionic for the c-Ce0.5Zr0.5O2. The bulk conductivity (sigma =1.2 x 10(-5) S/cm at 823 K, sigma = 2.1 x 10(-3) S/cm at 1123 K) is the same as that of CeO2, but smaller than that of Y2O3-stabilized ZrO2. A marked curvature at T = 823 K has been observed in the Arrhenius plot of the bulk conductivity. The activation energy below 823 K is lower than that above 823 K, and the reason has been discussed. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/36853]  |
| 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 | D. P. Xu,Q. Y. Wang,Z. Lu,et al. High-pressure synthesis and properties of CeO2-ZrO2 solid solution[J]. Chinese Science Bulletin,2001,46(10):801-806. |
| APA | D. P. Xu,Q. Y. Wang,Z. Lu,Z. G. Liu,G. M. Zhang,&W. H. Su.(2001).High-pressure synthesis and properties of CeO2-ZrO2 solid solution.Chinese Science Bulletin,46(10),801-806. |
| MLA | D. P. Xu,et al."High-pressure synthesis and properties of CeO2-ZrO2 solid solution".Chinese Science Bulletin 46.10(2001):801-806. |
入库方式： OAI收割
来源：金属研究所
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