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中文摘要：
石墨和 Cu/C 的阴极侵蚀在直接当前的弧被学习，它在在空中由二种碳材料和钨阳极组成的二个电极之间被点燃。阴极表面上的 arced 地区被一台扫描电子显微镜调查。另外，调查材料的阴极侵蚀率被测量。结果证明二个不同地区能在两阴极上被看见。侵蚀的区域在就对面在地区被定位到阳极并且由一个白地区包围了。包含 9.3 % Cu 的 Cu/C 上的 arced 表面比纯石墨的不平。有在 Cu/C 上分布式的各种各样的尺寸的许多粒子。Cu 罐头的蒸发降低表面温度并且减少阴极侵蚀。因此， Cu/C 的阴极侵蚀率比纯石墨的低。
英文摘要：
Cathode erosion of graphite and Cu/C was studied in direct current arcs, which were ignited between two electrodes comprised of two kinds of carbon materials and a tungsten anode in air. The arced zones on the cathode surface were investigated by a scanning electron microscope. Also, the cathode erosion rates of the investigated materials were measured. The results show that two distinct zone can be seen on both cathodes. The eroded area was located at the zone just opposite to the anode and surrounded by a white zone. The arced surface on the Cu/C containing 9.3 % Cu is rougher than that of the pure graphite. Many particles with various sizes distributed on the Cu/C. The vaporization of Cu can lower the surface temperature and reduce the cathode erosion. Therefore, the cathode erosion rate of the Cu/C is lower than that of the pure graphite.
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