Journal ArticleDOI
Microstructure and Electrical Properties of La2O3-Doped ZnO-Bi2O3 Based Varistor Ceramics
TLDR
In this paper, the microstructure and electrical properties of the varistor ceramics were studied by a solid reaction route, and the results showed with addition of 0-1.00mol% La2O3 and 0.08mol% ZnO-based varistor Ceramics exhibit comparatively ideal comprehensive electrical properties such as the threshold voltage was 320V/mm, the nonlinear coefficient was 36.8 and the leakage current was 0.29μA.Abstract:
La2O3-doped ZnO-Bi2O3-based varistor ceramics were obtained by a solid reaction route, and the microstructure and electrical properties of the varistor ceramics were studied in this paper. The results showed with addition of 0-1.00mol% La2O3, La2O3-doped ZnO-based varistor ceramics were prepared in this paper with the voltage gradient of 77-503V/mm, the nonlinear coefficient of 2.4-36.8, and the leakage current of 0.09-494μA. The results also showed with addition of 0.08mol% La2O3, La2O3-doped ZnO-based varistor ceramics exhibit comparatively ideal comprehensive electrical properties. Such as the threshold voltage was 320V/mm, the nonlinear coefficient was 36.8 and the leakage current was 0.29μA. The doping of La2O3 affects the form and decomposition of the pyrochlore.read more
Citations
More filters
Journal ArticleDOI
Influence of zinc on electrical and microstructural properties of CaCu3Ti4O12 ceramics prepared by sol–gel process
Dong Xu,Dong Xu,Dong Xu,Chen Zhang,Yuanhua Lin,Lei Jiao,Hongming Yuan,Guoping Zhao,Xiaonong Cheng +8 more
TL;DR: In this article, the dielectric and varistor properties of Zn-substituted CaCu 3 Ti 4 O 12 (CCZTO) were analyzed by a precision impedance analyzer and a varistor tester, respectively.
Journal ArticleDOI
Microstructure and electrical properties of Sc2O3-doped ZnO–Bi2O3-based varistor ceramics
TL;DR: In this article, the microstructure and electrical properties of ZnO-Bi 2 O 3 -based varistor ceramics doped with different Sc 2O 3 content sintered at 1100°C were investigated.
Journal ArticleDOI
Microstructure and electrical properties of Y(NO3)3·6H2O-doped ZnO-Bi2O3-based varistor ceramics
TL;DR: Y(NO 3 ) 3 ·6H 2 O-doped ZnO-Bi 2 O 3 -based varistor ceramics were prepared using a solid reaction route as mentioned in this paper.
Book
Multi-functional materials and structures II : selected, peer reviewed papers from the 2nd International Conference on Multi-functional Materials and Structures, October 9-12, 2009, Qingdao, Shandong, P.R. China
Yansheng Yin,Xin Wang +1 more
TL;DR: In this paper, the authors present a collection of peer-reviewed papers on multi-functional materials and structures for various engineering applications, and make a valuable contribution to the literature on the subject.
Journal ArticleDOI
Microstructure and electrical properties of Lu2O3-doped ZnO-Bi2O3-based varistor ceramics
TL;DR: In this article, the microstructures of the varistor ceramics samples were characterized by X-ray diffractometry (XRD) and scanning electron microscopy (SEM).
References
More filters
Journal ArticleDOI
Al doping effect on electrical and dielectric aging behavior against impulse surge in ZPCCYA-based varistors
TL;DR: In this paper, the effect of Al2O3 doping on electrical and dielectric aging behavior against impulse surge in the ZPCCYA-based varistors was investigated, and the best electrical and Dielectric stability was obtained at 0.01% in terms of surge absorption capability.
Journal ArticleDOI
The effect of sintering temperature variations on the development of electrically active interfaces in zinc oxide based varistors
Colin Leach,Z. Ling,Robert Freer +2 more
TL;DR: In this article, a series of zinc oxide based varistors containing 0.5 wt.% Bi 2 O 3 (BiO 3 ) and 0.1 Wt. % Mn 2 O3 (MNO 3 ) were prepared by a conventional mixed oxide route and sintered at temperatures between 950 and 1300°C.
Journal ArticleDOI
Microstructure and electrical properties of ZnO–V2O5–MnO2–Co3O4–Dy2O3–Nb2O5-based varistors
TL;DR: In this article, the effect of Nb 2 O 5 doping on microstructure and the electrical properties of ZnO-MnO 2 -Co 3 O 4 -Dy 2 O 3 -based varistors was investigated.
Journal ArticleDOI
Effects of Y2O3 on the microstructure and electrical properties of Pr-ZnO varistors
TL;DR: In this paper, the effects of Y2O3 contents on the microstructure and electrical properties of Pr6O11-based ZnO varistor have been studied.
Journal ArticleDOI
Microstructures and characteristics of deep trap levels in ZnO varistors doped with Y2O3
TL;DR: In this paper, a discussion on ZnO-based varistor ceramics doped with different ratios of Y2O3 is presented, where the phase and microstructures of the samples are analyzed and the characteristics of deep trap levels are investigated by measuring their dielectric spectroscopies.