简述了低压继电器用触头材料的工作状态、性能要求和AgSnO2材料的典型制备工艺.通过分析电弧侵蚀作用后的触头表面组织结构及其对电性能的影响,提出了降低接触电阻、增强界面结合强度和分散电弧的主要改善手段,并展望了AgSnO2材料的发展趋势.
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