Enhancement of paramagnetic defects in yttria stabilized zirconia implanted by Cs ion irradiation

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	Enhancement of paramagnetic defects in yttria stabilized zirconia implanted by Cs ion irradiation
	X. T. Zu ; S. Zhu ; L. M. Wang ; R. C. Ewing
刊名	Journal of Alloys and Compounds
	2007
卷号	429 期号:1-2 页码:25-28
关键词	yttria stabilized zirconia heavy ion irradiation TEM electron paramagnetic resonance radiation-damage single-crystals phase-transition cubic zirconia electron traps epr centers glasses nanocrystals resonance
ISSN号	0925-8388
中文摘要	Single crystal samples of cubic zirconia stabilized by 9.5 mol% Y2O3 (YSZ) were implanted with 200 KeV Xe ions and 400 KeV Cs ions up to a dose of 5 x 10(16) ions/cm(2), then annealed at 200, 300, and 400 degrees C for 1 h isochronously, respectively. Electron paramagnetic resonance (EPR) and cross-sectional transmission electron microscopy were used to study defect structure and radiated damage mechanism. EPR spectra showed the trigonal signal with g(parallel to) = 1.989 and g(perpendicular to) = 1.869, which exhibited axial symmetry with (111) direction as symmetry axis composed of six-fold-coordinated Zr3+ sites. Peak-to-peak intensity (per unit volume) of Cs-ion irradiated YSZ is as about 150 time as that of Xe-ion irradiated YSZ. This indicated that the concentration of six-fold-coordinated Zr3+ defects produced by Cs-ion irradiation was far more than that of Xe-ion irradiated. The cross-sectional image of the irradiated samples showed that the Cs-ion irradiation in YSZ produced more defect clusters than Xe-ion irradiation. Annealing did not produce any change for EPR signals and indicated six-fold-coordinated Zr3+ defects was stable defect structure below 400 degrees C. (c) 2006 Elsevier B.V. All rights reserved.
原文出处	://WOS:000244673100005
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/34121]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	X. T. Zu,S. Zhu,L. M. Wang,et al. Enhancement of paramagnetic defects in yttria stabilized zirconia implanted by Cs ion irradiation[J]. Journal of Alloys and Compounds,2007,429(1-2):25-28.
APA	X. T. Zu,S. Zhu,L. M. Wang,&R. C. Ewing.(2007).Enhancement of paramagnetic defects in yttria stabilized zirconia implanted by Cs ion irradiation.Journal of Alloys and Compounds,429(1-2),25-28.
MLA	X. T. Zu,et al."Enhancement of paramagnetic defects in yttria stabilized zirconia implanted by Cs ion irradiation".Journal of Alloys and Compounds 429.1-2(2007):25-28.