受电弓材料Ti3AlC2和Cu-Ti3AlC2的电弧烧蚀性能对比  

Comparison of Electrical Ablation Properties Between Pantograph Materials:Ti3AlC2 and Cu-Ti3AlC2

作　　者：黄晓晨 凤仪 钱刚 葛金龙[1] 张现峰[1] 王传虎[1] Huang Xiaochen;Feng Yi;Qian Gang;Ge Jinlong;Zhang Xianfeng;Wang Chuanhu(Research Center of Silicon-based New Materials Engineering Technology,Bengbu College,Bengbu 233030,China;Hefei University of Technology,Hefei 230009,China)

机构地区：[1]蚌埠学院硅基新材料工程技术研究中心,安徽蚌埠233030 [2]合肥工业大学,安徽合肥230009

出　　处：《稀有金属材料与工程》2020年第1期34-41,共8页Rare Metal Materials and Engineering

基　　金：Natural Science Foundation of Anhui Province(1908085QE218,1808085ME122);National Natural Science Foundation of China(51871085,21503004)。

摘　　要：经过2,5,7,9 kV放电电压作用后,分析了受电弓材料Ti3AlC2和Cu-Ti3AlC2的电弧烧蚀性。Cu-Ti3AlC2材料的电弧寿命和击穿电流都比Ti3AlC2的低。用高速摄影机记录2种材料的电弧形态。结果表明,Ti3AlC2上的电弧要比Cu-Ti3AlC2的电弧更加集中,伴随着更多的液滴飞溅。采用扫描电镜(SEM)观察了被侵蚀的2种材料表面情况。和Cu-Ti2AlC2的表面相比,Ti3AlC2的表面更加不均匀,表面覆盖有"孔洞","显微裂纹"和"飞溅物"。计算了不同电压下的电弧能量,在相同电压下,Cu-Ti3AlC2材料的电弧能量小于Ti3AlC2材料。采用拉曼光谱法测定了被烧损样品表面的成分。实验表明,Cu-Ti3AlC2更适合于做受电弓材料。The electrical ablation properties of typical pantograph materials Ti3 AlC2 as well as Cu-Ti3 AlC2 were analyzed at 2,5,7 and 9 kV.The results show that the arc life of Cu-Ti3 AlC2 is shorter than that of Ti3 AlC2.The breakdown current shows the same condition.High speed camera was employed to record the arc morphologies of the two materials.The arc on Ti3 AlC2 is more concentrated than that of Cu-Ti3 AlC2,accompanied with more droplet splashes.The eroded surfaces of the two materials were observed by scanning electron microscopy(SEM).Compared to the eroded Cu-Ti3 AlC2,Ti3 AlC2 surface is more uneven,covered by"holes","microcracks"and"splashes".The arc energy at different voltages was calculated.It shows that the arc energy of Cu-Ti3 AlC2 material is less than that of Ti3 AlC2 material at the same voltage.Raman spectrometer was used to determine the composition of the eroded surfaces.Summarizing the experimental results,it can be found that Cu-Ti3 AlC2 is more suitable for pantograph material.

关 键 词：TI3ALC2 Cu-Ti3AlC2 电弧侵蚀 高速摄影机 

分 类 号：TM501.2[电气工程—电器]