Microstructure and vacuum arc characteristics of CuO skeletal structure Ag-CuO contact materials
Microstructure and vacuum arc characteristics of CuO skeletal structure Ag-CuO contact materials
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DOI：
10.1016/j.jallcom.2016.05.271
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发表时间：
2016-11
影响因子：
6.2
通讯作者：
Jun Wang;Yongqiang Kang;Chen Wang
中科院分区：
文献类型：
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作者：
Jun Wang;Yongqiang Kang;Chen Wang
本文采用高能球磨和热压技术成功制备了具有CuO骨架结构的新型Ag-45CuO触头材料。研究了CuO骨架结构Ag-45CuO材料的显微组织和真空电弧特性。通过 X 射线衍射（XRD）对研磨后的 Ag-CuO 粉末进行结构表征。通过扫描电子显微镜（SEM）对CuO骨架结构Ag-45CuO材料的微观结构和电弧蚀表面形貌进行了表征。进行维氏显微硬度和电导率测试以确定 Ag-CuO 样品的机械性能。结果表明，Ag-45CuO材料中的CuO骨架结构已经形成，并表现出均匀的CuO骨架微观结构。随着CuO含量从20wt.%增加到45wt.%，显微硬度增加了2倍以上，电弧侵蚀面积明显减少，这表明CuO骨架结构Ag-45CuO材料的抗电弧侵蚀特性得到显着改善。
In this paper, the novel Ag-45CuO contact materials with CuO skeletal structure were successfully prepared by high energy ball milling and hot pressing technology. The microstructure and vacuum arc characteristics of CuO skeletal structure Ag-45CuO materials were investigated. The as milled Ag-CuO powders were structurally characterized by X-ray diffraction (XRD). The microstructure and arc eroded surface morphologies of CuO skeletal structure Ag-45CuO materials were characterized by Scanning Electron Microscopy (SEM). Vickers microhardness and conductivity tests were conducted to determine the mechanical properties of the Ag-CuO samples. The results show that CuO skeletal structure in Ag-45CuO materials has formed and exhibit homogeneous CuO skeletal microstructure. With the CuO content increase from 20 wt.% to 45 wt.%, it was found that the microhardness increased over 2 times and the arc erosion areas decreased obviously, which indicates that the anti-arc erosion characteristic of CuO skeletal structure Ag-45CuO materials can be improved significantly.