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Microstructure and electrical properties of Y(NO3)3·6H2O-doped ZnO-Bi2O3-based varistor ceramics
Xu, Dong; Cheng, Xiaonong; Yuan, Hongming; Yang, Juan; Lin, Yuanhua; Xu, D.(frank@ujs.edu.cn)
2011
Source PublicationJournal of Alloys and Compounds
ISSN09258388
Volume509Issue:38Pages:9312-9317
AbstractY(NO3)3·6H2O-doped ZnO-Bi2O3-based varistor ceramics were prepared using a solid reaction route. The microstructure, electrical properties, degradation coefficient(DV), and dielectric characteristics of varistor ceramics were studied in this paper. With increasing amounts of Y(NO3)3·6H2O in the starting composition, Y-containing Bi-rich, Y2O3, and Sb2O4 phases were formed, and the average grain size decreased. Results also showed that with the addition of0.16 mol% Y(NO3)3·6H2O, Y(NO3)3·6H2O-doped ZnO-based varistor ceramics exhibit comparatively better comprehensive electrical properties, such as a threshold voltage of425 V/mm, a nonlinear coefficient of73.9, a leakage current of1.78μA, and a degradation coefficient of1.7. The dielectric characteristics and lightning surge test also received the same additional content of Y(NO3)3·6H2O. The results confirmed that doping with rare earth nitrates instead of rare earth oxides is very promising route in preparing high-performance ZnO-Bi2O3-based varistor ceramics.?2011 Elsevier B.V. All rights reserved.
metadata_83中科院半导体材料科学重点实验室
KeywordCeramic Materials Degradation Microstructure Rare Earth Alloys Rare Earths Varistors Zinc Oxide
Subject Area半导体材料
Indexed ByEI
Language英语
Date Available2012-06-14
Document Type期刊论文
Identifierhttp://ir.semi.ac.cn/handle/172111/23123
Collection中科院半导体材料科学重点实验室
Corresponding AuthorXu, D.(frank@ujs.edu.cn)
Recommended Citation
GB/T 7714
Xu, Dong,Cheng, Xiaonong,Yuan, Hongming,et al. Microstructure and electrical properties of Y(NO3)3·6H2O-doped ZnO-Bi2O3-based varistor ceramics[J]. Journal of Alloys and Compounds,2011,509(38):9312-9317.
APA Xu, Dong,Cheng, Xiaonong,Yuan, Hongming,Yang, Juan,Lin, Yuanhua,&Xu, D..(2011).Microstructure and electrical properties of Y(NO3)3·6H2O-doped ZnO-Bi2O3-based varistor ceramics.Journal of Alloys and Compounds,509(38),9312-9317.
MLA Xu, Dong,et al."Microstructure and electrical properties of Y(NO3)3·6H2O-doped ZnO-Bi2O3-based varistor ceramics".Journal of Alloys and Compounds 509.38(2011):9312-9317.
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