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学科主题物理化学
UV Raman spectroscopic study on the surface phase of ZrO2 modified with Nd2O3
Zhang, Jing1; Yan, Song1; Yuan, Mengqiong1; Wang, Xiang2; Li, Can2; JingZhang
关键词Zro2 Surfaces Uv Raman Spectroscopy Xrd Nd2o3 Characterization Methods
刊名MATERIALS LETTERS
2011-01-31
ISSN待补充
DOI10.1016/j.matlet.2010.10.002
65期:2页:201-204
收录类别SCI
文章类型Article
部门归属5
项目归属503
产权排名2,4
WOS标题词Science & Technology ; Technology ; Physical Sciences
类目[WOS]Materials Science, Multidisciplinary ; Physics, Applied
研究领域[WOS]Materials Science ; Physics
关键词[WOS]TETRAGONAL ZRO2 ; ZIRCONIA ; TRANSFORMATION ; STABILIZATION ; SCATTERING ; STABILITY ; CERAMICS ; REGION
英文摘要UV Raman spectroscopic study on the surface phase of ZrO2 modified with Nd2O3; The Nd2O3 modified ZrO2 was synthesized using two methods of co-precipitation (Nd-ZrO2) and wet impregnation (Nd/ZrO2). The surface and bulk crystalline phases of Nd2O3 modified ZrO2 were investigated by using UV Raman spectroscopy, visible Raman spectroscopy, and X-ray diffraction (XRD). It is observed that the tetragonal phase in the surface region of Nd-ZrO2 was not effectively stabilized by Nd2O3, as Nd2O3 is mainly present in the bulk of Nd-ZrO2. However, in Nd/ZrO2, it is found that with the impregnation of 0.5 mol% Nd2O3 on ZrO2, the surface tetragonal phase of Nd/ZrO2 can be stabilized even after calcination at 700 degrees C. The UV Raman results indicate that a disordered structure, or intermediate structure, which is involved in the transition from the tetragonal to the cubic phase, is formed at the surface region of Nd/ZrO2. The formation of the aforementioned intermediate structure inhibits the phase transition from tetragonal to monoclinic in the surface region of Nd/ZrO2. Furthermore, it is observed that the mixed tetragonal and monoclinic phases in the surface region of ZrO2 which has been impregnated with Nd2O3 can also be stabilized after calcination at 700 degrees C. This work provides a simple method for controlling the surface phase of ZrO2 at high temperatures. (C) 2010 Elsevier B.V. All rights reserved.
语种英语
WOS记录号WOS:000286158000018
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/115737
专题中国科学院大连化学物理研究所
通讯作者JingZhang
作者单位1.Liaoning Shihua Univ, Sch Chem & Mat Sci, Fushun 113001, Liaoning, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
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GB/T 7714
Zhang, Jing,Yan, Song,Yuan, Mengqiong,et al. UV Raman spectroscopic study on the surface phase of ZrO2 modified with Nd2O3[J]. MATERIALS LETTERS,2011,65(2):201-204.
APA Zhang, Jing,Yan, Song,Yuan, Mengqiong,Wang, Xiang,Li, Can,&JingZhang.(2011).UV Raman spectroscopic study on the surface phase of ZrO2 modified with Nd2O3.MATERIALS LETTERS,65(2),201-204.
MLA Zhang, Jing,et al."UV Raman spectroscopic study on the surface phase of ZrO2 modified with Nd2O3".MATERIALS LETTERS 65.2(2011):201-204.
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