Effects of Doped Pr6O11 on the Properties of ZnO-Bi2O3 System Varistors

doi:10.3724/SP.J.1077.2006.00381

Abstract

Abstract: The ZnO-Bi₂O₃ system varistors were modified by doping with rare-earth oxide Pr₆O₁₁ and their electrical properties and microstructure were investigated. The results of experiment indicate that adding a small scale of Pr₆O₁₁ would increase the nonlinear coefficient greatly and decrease the leakage current with no change in threshold voltage. When the Pr₆O₁₁ content reaches to 7wt%, the threshold voltage increases by about 60%, whereas the leakage current and nonlinear coefficient are unchangable. The SEM and XRD analyses testify that Pr₆O₁₁ makes the microstructure of the materials more uniform and compact.

Key words: rare-earth oxide, varistors materials, electrical properties, microstructure

CLC Number:

TN304

ZHU Jian-Feng,LUO Hong-Jie,WANG Fen. Effects of Doped Pr₆O₁₁ on the Properties of ZnO-Bi₂O₃ System Varistors[J]. Journal of Inorganic Materials, DOI: 10.3724/SP.J.1077.2006.00381.

[1]	HE Danqi, WEI Mingxu, LIU Ruizhi, TANG Zhixin, ZHAI Pengcheng, ZHAO Wenyu. Heavy-Fermion YbAl₃ Materials: One-step Synthesis and Enhanced Thermoelectric Performance [J]. Journal of Inorganic Materials, 2023, 38(5): 577-582.
[2]	WU Shuang, GOU Yanzi, WANG Yongshou, SONG Quzhi, ZHANG Qingyu, WANG Yingde. Effect of Heat Treatment on Composition, Microstructure and Mechanical Property of Domestic KD-SA SiC Fibers [J]. Journal of Inorganic Materials, 2023, 38(5): 569-576.
[3]	ZHANG Ye, ZENG Yuping. Progress of Porous Silicon Nitride Ceramics Prepared via Self-propagating High Temperature Synthesis [J]. Journal of Inorganic Materials, 2022, 37(8): 853-864.
[4]	XIA Qian, SUN Shihao, ZHAO Yiliang, ZHANG Cuiping, RU Hongqiang, WANG Wei, YUE Xinyan. Effect of Boron Carbide Particle Size Distribution on the Microstructure and Properties of Reaction Bonded Boron Carbide Ceramic Composites by Silicon Infiltration [J]. Journal of Inorganic Materials, 2022, 37(6): 636-642.
[5]	HONG Du, NIU Yaran, LI Hong, ZHONG Xin, ZHENG Xuebin. Tribological Properties of Plasma Sprayed TiC-Graphite Composite Coatings [J]. Journal of Inorganic Materials, 2022, 37(6): 643-650.
[6]	XU Puhao, ZHANG Xiangzhao, LIU Guiwu, ZHANG Mingfen, GUI Xinyi, QIAO Guanjun. Microstructure and Mechanical Properties of SiC Joint Brazed by Al-Ti Alloys as Filler Metal [J]. Journal of Inorganic Materials, 2022, 37(6): 683-690.
[7]	HUANG Longzhi, YIN Jie, CHEN Xiao, WANG Xinguang, LIU Xuejian, HUANG Zhengren. Selective Laser Sintering of SiC Green Body with Low Binder Content [J]. Journal of Inorganic Materials, 2022, 37(3): 347-352.
[8]	WU Xishi, ZHU Yunzhou, HUANG Qing, HUANG Zhengren. Effect of Pore Structure of Organic Resin-based Porous Carbon on Joining Properties of C_f/SiC Composites [J]. Journal of Inorganic Materials, 2022, 37(12): 1275-1280.
[9]	SUN Luchao, ZHOU Cui, DU Tiefeng, WU Zhen, LEI Yiming, LI Jialin, SU Haijun, WANG Jingyang. Directionally Solidified Al₂O₃/Er₃Al₅O₁₂ and Al₂O₃/Yb₃Al₅O₁₂ Eutectic Ceramics Prepared by Optical Floating Zone Melting [J]. Journal of Inorganic Materials, 2021, 36(6): 652-658.
[10]	HUANG Xinyou, LIU Yumin, LIU Yang, LI Xiaoying, FENG Yagang, CHEN Xiaopu, CHEN Penghui, LIU Xin, XIE Tengfei, LI Jiang. Fabrication and Characterizations of Yb:YAG Transparent Ceramics Using Alcohol-water Co-precipitation Method [J]. Journal of Inorganic Materials, 2021, 36(2): 217-224.
[11]	ZHANG Junmin, CHEN Xiaowu, LIAO Chunjin, GUO Feiyu, YANG Jinshan, ZHANG Xiangyu, DONG Shaoming. Optimizing Microstructure and Properties of SiC_f/SiC Composites Prepared by Reactive Melt Infiltration [J]. Journal of Inorganic Materials, 2021, 36(10): 1103-1110.
[12]	ZHU Danyang, QIAN Kang, CHEN Xiaopu, HU Zewang, LIU Xin, LI Xiaoying, PAN Yubai, MIHÓKOVÁ Eva, NIKL Martin, LI Jiang. Fine-grained Ce,Y:SrHfO₃ Scintillation Ceramics Fabricated by Hot Isostatic Pressing [J]. Journal of Inorganic Materials, 2021, 36(10): 1118-1124.
[13]	CHEN Lei,WANG Kai,SU Wentao,ZHANG Wen,XU Chenguang,WANG Yujin,ZHOU Yu. Research Progress of Transition Metal Non-oxide High-entropy Ceramics [J]. Journal of Inorganic Materials, 2020, 35(7): 748-758.
[14]	WU Xiaojun,YANG Jie,ZHENG Rui,ZHANG Zhaofu,YANG Yi. Effect of Ablation Surface Microstructure on Plasma Arc Ablation Properties of C/C Throat Insert Fabricated via CVI+HPIC Methods [J]. Journal of Inorganic Materials, 2020, 35(6): 654-660.
[15]	DONG Lijia, GUO Xiaojie, LI Xue, CHEN Chaogui, JIN Yang, AHMED Alsaedi, TASAWAR Hayat, ZHAO Qingzhou, SHENG Guodong. Microscopic Insights into pH-dependent Adsorption of Cd(II) on Molybdenum Disulfide Nanosheets [J]. Journal of Inorganic Materials, 2020, 35(3): 293-300.

Effects of Doped Pr₆O₁₁ on the Properties of ZnO-Bi₂O₃ System Varistors

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments