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Doping Effect of Kalium on the Electrical Contact Performance of Ag/ZnO

  • Ziyao Chen
  • , Wenzhu Shao*
  • , Weijian Li
  • , Wenwei Gu
  • , Bingtian Li
  • *Corresponding author for this work
  • Harbin Institute of Technology
  • Yantai University
  • Ltd

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

K-doped ZnO powders was successfully prepared by self-propagating combustion method and Ag/ZnO:K mixed powders was obtained by high-energy ball-milling. Through the surface microstructure characterization of Ag/ZnO and Ag/ZnO:K contacts prepared by powder metallurgy, it is found that K doping can enhance the dispersion of ZnO in the composites. By measuring the wetting angle between ZnO:K, ZnO and Ag, it indicated that K doping can improve the wettability between Ag and ZnO. Furthermore, the comparison of the Ag/ZnO and Ag/ZnO:K contacts has been measured by the cyclic arc-erosion experiments, which demonstrated that K doping can improve the arc-erosion resistance, contact resistance stability and welding resistance of Ag/ZnO electrical contact composites by increasing the dispersion of ZnO and wettability between Ag and ZnO.

Original languageEnglish
Title of host publicationICREPEC 2022 - Proceedings of the 8th International Conference on Reliability of Electrical Products and Electrical Contacts
EditorsJingqin Wang, Jingying Zhao
PublisherInternational Academic Publishers
Pages454-458
Number of pages5
ISBN (Electronic)9789881532374
StatePublished - 2022
Event8th International Conference on Reliability of Electrical Products and Electrical Contacts, ICREPEC 2022 - Xiamen, China
Duration: 18 Nov 202220 Nov 2022

Publication series

NameICREPEC 2022 - Proceedings of the 8th International Conference on Reliability of Electrical Products and Electrical Contacts

Conference

Conference8th International Conference on Reliability of Electrical Products and Electrical Contacts, ICREPEC 2022
Country/TerritoryChina
CityXiamen
Period18/11/2220/11/22

Keywords

  • Ag/ZnO electrical contact materials
  • arc-erosion
  • dispersion of second phase
  • modification of K doping
  • wettability

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