摘要
为了降低银基触头材料中银的用量,改善SnO_2在Ag/Cu基体中的润湿性,以CuO为掺杂剂,采用高能球磨法和压力烧结成型工艺制备出银含量为70%的纳米掺杂Ag/Cu/SnO_2触头材料,测试纳米掺杂触头材料的电导率、硬度、密度、耐电压强度等性能,运用X射线衍射仪对Ag/Cu/SnO_2触头材料进行物相分析,利用扫描电镜(SEM)观察分析触头材料耐电弧侵蚀性能测试前后的表面形貌特征.结果表明,制得的纳米掺杂Ag/Cu/SnO_2触头材料组织分布均匀,具备优异的物理性能、耐电压强度和耐电弧侵蚀能力,能够有效降低银基触头材料中银的用量.
In order to save silver and improve the wettability of SnO 2 particles in Ag/Cu matrix,CuO was used as the doping agents to prepare Ag/Cu/SnO 2 contact material with 70% silver content by high energy ball milling and pressure sintering process.Then the conductivity, hardness, density and electrical properties of Ag/Cu/SnO 2 contact material were tested.The phase structure and microstructural of Ag/Cu/SnO 2 contact material were characterized using XRD and SEM.The results show that the composition of nano doped Ag/Cu/SnO 2 contact material is evenly distributed.The contact material has excellent physical properties, electrical properties and arc erosion ability.It can effectively reduce the amount of silver in silver base contact material.
作者
思芳
王俊勃
刘松涛
杨敏鸽
SI Fang;WANG Junbo;LIU Songtao;YANG Minge(School of Materials Science and Engineering,Xi′an Polytechnic University,Xi′an 710048,China;School of Environmental and Chemistry Engineering,Xi′an Polytechnic University,Xi′an 710048,China)
出处
《纺织高校基础科学学报》
CAS
2018年第3期299-305,共7页
Basic Sciences Journal of Textile Universities
基金
陕西省自然科学基础研究计划项目(2016JM5049)
陕西省教育厅科学研究计划专项项目(17JK0333)
