Effect of Rare-Earth Ionic Radius on Microstructure and Electrical Property of Rare-Earth Zirconate Ceramics

QIBEBT-IR > 膜分离与催化研究组

	Effect of Rare-Earth Ionic Radius on Microstructure and Electrical Property of Rare-Earth Zirconate Ceramics
	Xia Xiaoliang 1,2; Liu Zhanguo 1; Ouyang Jiahu 1; Jin Yujun 1
	2016-08-01
发表期刊	RARE METAL MATERIALS AND ENGINEERING
卷号	45 期号:8 页码:2003-2008
摘要	The microstructure and electrical conductivity of A(2)Zr(2)O(7) ceramic have been investigated by X-ray diffraction (XRD), high resolution transmission electron microscopy (HRTEM) coupled with selected area electron diffraction (SAED), Raman spectroscopy and Impedance spectroscopy. The results show that the degree of structural order of rare-earth zirconates A(2)Zr(2)O(7) ceramics gradually decreases with reducing ionic radius of rare-earth cations. The Sm2Zr2O7 and EuzZr(2)O(7) ceramics exhibit an ordered pyrochlore phase, while Gd2Zr2O7 and Dy2Zr2O7 ceramics have a disordered fluorite phase. Pyrochlore-type Eu2Zr2O7 ceramic with a relatively low structural order degree shows the maximum grain conductivity of 1.03 x 10(-2) S.cm(-1) at 1173 K, as compared with that of other rare-earth zirconates.
文章类型	Article
关键词	Pyrochlore Defective Fluorite Degree Of Structural Order Microstructure Electrical Conductivity
WOS标题词	Science & Technology ; Technology
关键词[WOS]	STRUCTURAL TRANSFORMATION ; PYROCHLORE STRUCTURE ; RAMAN-SPECTROSCOPY ; FLUORITE STRUCTURE ; DISORDER ; A(2)B(2)O(7)
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000382410400016
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/8426
专题	膜分离与催化研究组
作者单位	1.Harbin Inst Technol, Inst Adv Ceram, Harbin 150080, Peoples R China 2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
推荐引用方式 GB/T 7714	Xia Xiaoliang,Liu Zhanguo,Ouyang Jiahu,et al. Effect of Rare-Earth Ionic Radius on Microstructure and Electrical Property of Rare-Earth Zirconate Ceramics[J]. RARE METAL MATERIALS AND ENGINEERING,2016,45(8):2003-2008.
APA	Xia Xiaoliang,Liu Zhanguo,Ouyang Jiahu,&Jin Yujun.(2016).Effect of Rare-Earth Ionic Radius on Microstructure and Electrical Property of Rare-Earth Zirconate Ceramics.RARE METAL MATERIALS AND ENGINEERING,45(8),2003-2008.
MLA	Xia Xiaoliang,et al."Effect of Rare-Earth Ionic Radius on Microstructure and Electrical Property of Rare-Earth Zirconate Ceramics".RARE METAL MATERIALS AND ENGINEERING 45.8(2016):2003-2008.