DICP OpenIR
Subject Area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
KeywordZro2 Surfaces Uv Raman Spectroscopy Xrd Nd2o3 Characterization Methods
Source PublicationMATERIALS LETTERS
2011-01-31
ISSN待补充
DOI10.1016/j.matlet.2010.10.002
Volume65Issue:2Pages:201-204
Indexed BySCI
SubtypeArticle
Department5
Funding Project503
Contribution Rank2,4
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
WOS SubjectMaterials Science, Multidisciplinary ; Physics, Applied
WOS Research AreaMaterials Science ; Physics
WOS KeywordTETRAGONAL ZRO2 ; ZIRCONIA ; TRANSFORMATION ; STABILIZATION ; SCATTERING ; STABILITY ; CERAMICS ; REGION
AbstractUV 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.
Language英语
WOS IDWOS:000286158000018
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/115737
Collection中国科学院大连化学物理研究所
Corresponding AuthorJingZhang
Affiliation1.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
Recommended Citation
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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