IHEP OpenIR  > 多学科研究中心
The effects of high temperature on the high-pressure behavior of CeO2
Xiao, WS; Tan, DY; Li YC(李延春); Liu J(刘景); Li, YC; Liu, J
2007
发表期刊JOURNAL OF PHYSICS-CONDENSED MATTER
卷号19期号:42页码:425213
通讯作者Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
摘要Raman spectrum and angle- dispersive x- ray diffraction ( ADXD) measurements have been performed to investigate the effects of high temperature on the high-pressure behavior of bulk CeO2. A phase transformation of CeO2 from fluorite to PbCl2-type structure occurs at 12.0 GPa and is completed at 14.2 GPa after the sample is heated, and the phase transition pressure decreases by nearly 20 GPa compared with that at room temperature. On decompression, the high-pressure phase of CeO2 remains down to 2.2 GPa, and it changes back to a cubic structure at ambient conditions. At a pressure of 22.1 GPa, a 6.4% lattice volume difference between the fluorite and PbCl2-type structures was observed. The lattice volume of fluorite phase obtained in the areas that have been heated is about 1% less than that obtained in the areas that have not been heated. Besides prompting the phase transition of CeO2, high temperature also anneals the sample and leads a small reduction in lattice volume of the fluorite phase. The zero-pressure bulk modulus of the fluorite phase of CeO2 after annealing is calculated to be about 200 GPa with an assumed pressure derivative of four, which is smaller than that of former x- ray diffraction experiments at room temperature.
文章类型Article; Proceedings Paper
学科领域Physics
研究领域[WOS]Physics
DOI10.1088/0953-8984/19/42/425213
URL查看原文
语种英语
WOS类目Physics, Condensed Matter
WOS记录号WOS:000249987500014
引用统计
被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/241063
专题多学科研究中心
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
Xiao, WS,Tan, DY,Li YC,et al. The effects of high temperature on the high-pressure behavior of CeO2[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2007,19(42):425213.
APA Xiao, WS,Tan, DY,李延春,刘景,Li, YC,&Liu, J.(2007).The effects of high temperature on the high-pressure behavior of CeO2.JOURNAL OF PHYSICS-CONDENSED MATTER,19(42),425213.
MLA Xiao, WS,et al."The effects of high temperature on the high-pressure behavior of CeO2".JOURNAL OF PHYSICS-CONDENSED MATTER 19.42(2007):425213.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
10378.pdf(510KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Xiao, WS]的文章
[Tan, DY]的文章
[李延春]的文章
百度学术
百度学术中相似的文章
[Xiao, WS]的文章
[Tan, DY]的文章
[李延春]的文章
必应学术
必应学术中相似的文章
[Xiao, WS]的文章
[Tan, DY]的文章
[李延春]的文章
相关权益政策
暂无数据
收藏/分享
文件名: 10378.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。