Phase Transformation and Lattice Parameter Changes of Non-trivalent Rare Earth-Doped YSZ as a Function of Temperature

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	Phase Transformation and Lattice Parameter Changes of Non-trivalent Rare Earth-Doped YSZ as a Function of Temperature
	Jiang, SL; Huang, X; He, Z; Buyers, A; Jiang, SL (reprint author), Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang, Liaoning, Peoples R China.; Jiang, SL (reprint author), Carleton Univ, Dept Mech & Aerosp Engn, Ottawa, ON, Canada.
刊名	JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
	2018-05-01
卷号	27 期号:5 页码:2263-2270
关键词	Stabilized Zirconia Conductivity
ISSN号	1059-9495
英文摘要	To examine the effect of doping/co-doping on high-temperature phase compositions of YSZ, stand-alone YSZ and CeO2 and Nb2O5 co-doped YSZ samples were prepared using mechanical alloy and high-temperature sintering. XRD analysis was performed on these samples from room temperature to 1100 A degrees C. The results show that the structure for the co-doped samples tends to be thermally stable when the test temperature is higher than a critical value. Monoclinic phase was dominant in Nb2O5 co-doped YSZ at temperatures lower than 600 A degrees C, while for the YSZ and CeO2 co-doped YSZ, cubic/tetragonal phase was dominant in the whole test temperature range. The lattice parameters for all the samples increase with increasing test temperature generally. The lattice parameters for the two non-trivalent rare earth oxides co-doped YSZ show that the lattice parameter a for the cubic phase of the Ce4+ co-doped YSZ is consistently greater than that of 7YSZ which is related to the presence of larger radius of Ce4+ in the matrix. The lattice parameters a, b, c for the monoclinic phase of Ce4+ co-doped YSZ are much closer to each other than that of the Nb5+ co-doped YSZ, indicating the former has better tendency to form cubic/tetragonal phase, which is desired for vast engineering applications.; To examine the effect of doping/co-doping on high-temperature phase compositions of YSZ, stand-alone YSZ and CeO2 and Nb2O5 co-doped YSZ samples were prepared using mechanical alloy and high-temperature sintering. XRD analysis was performed on these samples from room temperature to 1100 A degrees C. The results show that the structure for the co-doped samples tends to be thermally stable when the test temperature is higher than a critical value. Monoclinic phase was dominant in Nb2O5 co-doped YSZ at temperatures lower than 600 A degrees C, while for the YSZ and CeO2 co-doped YSZ, cubic/tetragonal phase was dominant in the whole test temperature range. The lattice parameters for all the samples increase with increasing test temperature generally. The lattice parameters for the two non-trivalent rare earth oxides co-doped YSZ show that the lattice parameter a for the cubic phase of the Ce4+ co-doped YSZ is consistently greater than that of 7YSZ which is related to the presence of larger radius of Ce4+ in the matrix. The lattice parameters a, b, c for the monoclinic phase of Ce4+ co-doped YSZ are much closer to each other than that of the Nb5+ co-doped YSZ, indicating the former has better tendency to form cubic/tetragonal phase, which is desired for vast engineering applications.
学科主题	Materials Science, Multidisciplinary
语种	英语
公开日期	2018-06-05
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79320]
专题	金属研究所_中国科学院金属研究所
通讯作者	Jiang, SL (reprint author), Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang, Liaoning, Peoples R China.; Jiang, SL (reprint author), Carleton Univ, Dept Mech & Aerosp Engn, Ottawa, ON, Canada.
推荐引用方式 GB/T 7714	Jiang, SL,Huang, X,He, Z,et al. Phase Transformation and Lattice Parameter Changes of Non-trivalent Rare Earth-Doped YSZ as a Function of Temperature[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2018,27(5):2263-2270.
APA	Jiang, SL,Huang, X,He, Z,Buyers, A,Jiang, SL ,&Jiang, SL .(2018).Phase Transformation and Lattice Parameter Changes of Non-trivalent Rare Earth-Doped YSZ as a Function of Temperature.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,27(5),2263-2270.
MLA	Jiang, SL,et al."Phase Transformation and Lattice Parameter Changes of Non-trivalent Rare Earth-Doped YSZ as a Function of Temperature".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE 27.5(2018):2263-2270.