EFFECT OF CR2O3 ON THE ELECTRICAL-PROPERTIES OF MULTICOMPONENT ZNO VARISTORS AT THE PREBREAKDOWN REGION

被引：36
|
作者：
PIANARO, SA
PEREIRA, EC
BULHOES, LOS
LONGO, E
VARELA, JA
机构：
[1] UNIV FED SAO CARLOS,DQ,LIEC,BR-13565905 SAO CARLOS,SP,BRAZIL
[2] UNIV ESTADUAL PONTA GROSSA,DEPT MAT ENGN,BR-84031510 PONTA GROSSA,BRAZIL
[3] UNESP,INST QUIM,BR-14800900 ARARAQUARA,SP,BRAZIL
来源：
JOURNAL OF MATERIALS SCIENCE | 1995年 / 30卷 / 01期
关键词：
D O I：
10.1007/BF00352142
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of Cr2O3 on the electrical properties of the multicomponent ZnO varistors was investigated using voltage-current curves and impedance spectroscopy. The structure and morphological modifications were analysed by X-ray diffraction and scanning electron microscopy, respectively. It was observed in samples with addition 0.1 mol% Cr2O3 that there was an improvement in the electrical properties of the varistors, but the increase in concentration had a deleterious effect on the potential barrier at the grain boundary. The excess Cr2O3 segregates at the grain-boundary region and increases the donor concentration, leading to a higher leakage current.
引用
收藏
页码：133 / 141
页数：9
相关论文
共 50 条
  • [1] The effect of Cr2O3 additive on the electrical properties of ZnO varistor
    Kim, YH
    Kawamura, H
    Nawata, M
    [J]. JOURNAL OF MATERIALS SCIENCE, 1997, 32 (06) : 1665 - 1670
  • [2] The effect of Cr2O3 additive on the electrical properties of ZnO varistor
    YONG HYUK KIM
    H KAWAMURA
    M NAWATA
    [J]. Journal of Materials Science, 1997, 32 : 1665 - 1670
  • [3] The effect of Ta2O5 and Cr2O3 on the electrical properties of TiO2 varistors
    Sousa, VC
    Leite, ER
    Varela, JA
    Longo, E
    [J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2002, 22 (08) : 1277 - 1283
  • [4] EFFECT OF ALUMINUM DOPING ON THE ELECTRICAL-PROPERTIES OF ZNO VARISTORS
    HU, SX
    WANG, SL
    XU, YC
    LI, XJ
    [J]. IEEE TRANSACTIONS ON COMPONENTS HYBRIDS AND MANUFACTURING TECHNOLOGY, 1985, 8 (04): : 525 - 529
  • [5] ELECTRICAL-PROPERTIES OF ZNO-BI2O3 THIN-FILM VARISTORS
    SUZUOKI, Y
    OHKI, A
    MIZUTANI, T
    IEDA, M
    [J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1987, 20 (04) : 511 - 517
  • [6] Effects of SiO2/Cr2O3 ratios on microstructures and electrical properties of high voltage gradient ZnO varistors
    Ruan, Xuejun
    Ren, Xin
    Zhou, Wenting
    Xu, Xi
    Wang, Xin
    Wang, Manyu
    Yan, Ying
    Yao, Zheng
    Shi, Wen
    Yu, Wenqi
    [J]. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2019, 30 (13) : 12113 - 12121
  • [7] Effects of SiO2/Cr2O3 ratios on microstructures and electrical properties of high voltage gradient ZnO varistors
    Xuejun Ruan
    Xin Ren
    Wenting Zhou
    Xi Xu
    Xin Wang
    Manyu Wang
    Ying Yan
    Zheng Yao
    Wen Shi
    Wenqi Yu
    [J]. Journal of Materials Science: Materials in Electronics, 2019, 30 : 12113 - 12121
  • [8] THE EFFECT OF ANTIMONY OXIDE ON THE ELECTRICAL-PROPERTIES AND STABILITY OF ZNO VARISTORS
    SHEN, CY
    CHEN, YC
    WU, L
    [J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1993, 32 (3A): : 1147 - 1153
  • [9] Effect Of sintering temperature on microstructure and electrical properties of ZnO-0.5 mol%V2O5-0.5 mol%Cr2O3 varistors
    Faiçal Kharchouche
    [J]. Journal of Materials Science: Materials in Electronics, 2018, 29 : 3891 - 3897
  • [10] Effect Of sintering temperature on microstructure and electrical properties of ZnO-0.5 mol%V2O5-0.5 mol%Cr2O3 varistors
    Kharchouche, Faical
    [J]. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2018, 29 (05) : 3891 - 3897
12345