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受电弓材料Ti3AlC2和Cu-Ti3AlC2的电弧烧蚀性能对比
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作者单位:

1.蚌埠学院 材料与化学工程学院;2.合肥工业大学材料科学与工程学院

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基金项目:

安徽省自然科学基金青年基金,,国家自然科学基金项目(面上项目,重点项目,重大项目)


Comparison of electrical ablation properties between pantograph materials:Ti3AlC2 and Cu-Ti3AlC2
Author:
Affiliation:

1.School of Materials Science and Engineering,Hefei University of Technology;2.China

Fund Project:

Natural Science Foundation of Anhui Province,National Natural Science Foundation of China

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    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的短。高速摄影机用来记录两种材料的电弧形态。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)观察了被侵蚀的两种材料表面情况。和Cu-Ti3AlC2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,结果表明,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。实验结果表明,Cu-Ti3AlC2更适合于做受电弓材料。

    Abstract:

    The electrical ablation properties of typical pantograph materials Ti3AlC2 as well as Cu-Ti3AlC2 were analyzed under 2, 5, 7, 9 kV. The arc life of Cu-Ti3AlC2 was shorter than that of Ti3AlC2. The breakdown current showed the same condition. High speed camera was employed to record the arc morphologies of the two materials. The arc on Ti3AlC2 was more concentrated than that of Cu-Ti3AlC2, accompanying with much more droplet splashes. The eroded surfaces of the two materials were observed by Scanning Electron Microscopy (SEM). Comparing to the eroded Cu-Ti3AlC2, Ti3AlC2 surface was more uneven, covered with "holes", "microcracks", "splashes". The arc energy at different voltages were calculated. It was shown that the arc energy of Cu-Ti3AlC2 material was less than that of Ti3AlC2 material under the same voltage. Raman spectrometer was carried out to determine the compositions of the eroded surfaces. Summarizing the experimental results, it could be found out that Cu-Ti3AlC2 is more suitable for pantograph material.

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黄晓晨,凤仪,钱刚,葛金龙,张现峰,王传虎.受电弓材料Ti3AlC2和Cu-Ti3AlC2的电弧烧蚀性能对比[J].稀有金属材料与工程,2020,49(1):34~41.[Huang Xiaochen, Feng Yi, Qian Gang, Ge Jinlong, Zhang Xianfeng, Wang Chuanhu. Comparison of electrical ablation properties between pantograph materials:Ti3AlC2 and Cu-Ti3AlC2[J]. Rare Metal Materials and Engineering,2020,49(1):34~41.]
DOI:10.12442/j. issn.1002-185X.20190413

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  • 收稿日期:2019-05-14
  • 最后修改日期:2019-11-01
  • 录用日期:2019-07-02
  • 在线发布日期: 2020-02-16
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