Research Progress in Cu-based Contact Materials for Medium and High Voltage Switches
The research progress in Cu-based electrical contact materials was reviewed,and the development process and classification of Cu-based contact materials for medium and high-voltage vacuum switches were introduced and analyzed,focusing on Cu-Cr,Cu-W,and Cu-oxide contacts.The preparation process was further analyzed,and the advantages and disadvantages of different research methods were compared.Finally,it is concluded that the surface modification treatment and multi-component microalloying are regarded as development direction of Cu-based contact materials and preparation process.
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