Bulk Grain Resistivity of ZnO-Based Varistors

被引：0
|
作者：
A. C. Caballero
D. Fernández Hevia
J. de Frutos
M. Peiteado
J. F. Fernández
机构：
[1] Instituto de Cerámica y Vidrio,Dpto. de Electrocerámica
[2] CSIC,E.T.S.I. Telecomunicación
[3] Univ. Politécnica de Madrid,undefined
来源：
Journal of Electroceramics | 2004年 / 13卷
关键词：
varistors; electrical properties; bulk conductivity;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We study the temperature dependence of grain resistivity in ZnO ceramic varistors (300–430 K), finding a positive temperature coefficient (PTC). We devise a high-frequency procedure that allow us to obtain the concentration and energy position of the shallow donor. The observed behavior is consistent with a shallow donor approaching complete ionization, and with an electron mobility mainly controlled by lattice (both optical and acoustical) scattering. The impact of this behavior on varistor performance under high-current pulse loads is discussed.
引用
收藏
页码：759 / 763
页数：4
相关论文
共 50 条
  • [31] Characterisation of ZnO-based varistors prepared from nanometre precursor powders
    Lin, YH
    Zhang, ZT
    Tang, ZL
    Yuan, FL
    Li, JL
    [J]. ADVANCED MATERIALS FOR OPTICS AND ELECTRONICS, 1999, 9 (05): : 205 - 209
  • [32] Two-step microwave sintering of nanostructured ZnO-based varistors
    Gunnewiek, Rodolfo F. K.
    Kiminami, Ruth H. G. A.
    [J]. CERAMICS INTERNATIONAL, 2017, 43 (01) : 847 - 853
  • [33] Effects of microwave sintering on intrinsic defects concentrations in ZnO-based varistors
    Kharchouche, Faical
    Savary, Etienne
    Thuault, Anthony
    Marinel, Sylvain
    d'Astorg, Sophie
    Rguiti, Mohamed
    Belkhiat, Saad
    Courtois, Christian
    Leriche, Anne
    [J]. CERAMICS INTERNATIONAL, 2014, 40 (08) : 13697 - 13701
  • [34] Optimizing the performance of the ZnO-based varistors using the neural networks technique
    Omar, Fuad Alhaj
    [J]. MICROELECTRONICS RELIABILITY, 2023, 148
  • [35] Mild degradation processes in ZnO-based varistors: the role of Zn vacancies
    Ponce, M. A.
    Macchi, C.
    Schipani, F.
    Aldao, C. M.
    Somoza, A.
    [J]. PHILOSOPHICAL MAGAZINE, 2015, 95 (07) : 730 - 743
  • [36] Local structures around Co and Mn ions in ZnO-based varistors
    Moriga, Toshihiro
    Nakabayashi, Ichiro
    [J]. Journal of Synchrotron Radiation, 1999, 6 (03): : 546 - 548
  • [37] Electric force microscopy investigations of barrier formations in ZnO-based varistors
    Gheno, S. M.
    Kiminami, R. H. G. A.
    Morelli, M. R.
    Paulin Filho, P. I.
    [J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2010, 30 (02) : 549 - 554
  • [38] Influence of Trace Eelements on the Electrical Properties of ZnO-based Multilayer Varistors
    Bernik, Slavko
    Brguljan, Nana
    Ercegovac, Marija
    Samardzija, Zoran
    [J]. INFORMACIJE MIDEM-JOURNAL OF MICROELECTRONICS ELECTRONIC COMPONENTS AND MATERIALS, 2022, 52 (04): : 215 - 226
  • [39] Fabrication of ZnO-based thick film varistors with high potential gradient
    KE Lei
    [J]. Rare Metals, 2010, 29 (04) : 390 - 395
  • [40] Fabrication of ZnO-based thick film varistors with high potential gradient
    Ke Lei
    Jiang Dongmei
    Ma Xueming
    [J]. RARE METALS, 2010, 29 (04) : 390 - 395
12345