Arc erosion behavior of carbon nanotubes and TiB2 hybrid reinforced copper composites

被引：0
|
作者：
Long F. [1 ,2 ,3 ]
Jia S. [1 ,2 ,3 ]
Guo X. [1 ,2 ,3 ]
Song K. [1 ,2 ,3 ]
Feng J. [4 ]
Zhang S. [1 ,2 ,3 ]
Liang S. [4 ]
机构：
[1] School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang
[2] Key Laboratory of Materials Science & Processing Technology for Non-ferrous Metals of Henan, Luoyang
[3] Collaborative Innovation Center of Nonferrous Metals, Luoyang
[4] School of Materials Science and Engineering, Xi'an University of Technology, Xi'an
来源：
Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica | 2019年 / 36卷 / 12期
关键词：
Arc energy; Arc erosion behavior; CNTs-TiB[!sub]2[!/sub]/Cu composites; Hybrid reinforcement; Material transfer;
D O I：
10.13801/j.cnki.fhclxb.20190109.003
中图分类号：
学科分类号：
摘要：
Sparks plasma sintering (SPS) process was used to prepare copper matrix composites reinforced with different ratios of carbon nanotubes(CNTs) and TiB2 hybrid. Density, hardness, electrical conductivity, thermal conductivity and microstructure of the composites were compared and analyzed. To investigate the effects of hybrid ratios on the arc erosion behavior of CNTs-TiB2/Cu composites, electrical contact test was carried out at different currents. The results indicate gradual decrease in relative density, hardness, electrical conductivity and thermal conductivity, and an increase in separation of the copper grains with the increasing hybrid ratios. Arc erosion resistance of CNTs-TiB2/Cu composites is improved with appropriate ratios of CNTs to TiB2 under a certain current. The CNTs-TiB2/Cu composite with 4:1 hybrid ratio of CNTs to TiB2 has the lowest average making-arc-energy, average making-arc-durations and material transfer amounts at 5 A and 10 A, while the CNTs-TiB2/Cu composite with 1:4 hybrid ratio of CNTs to TiB2 has the lowest average making-arc-energy, average making-arc-durations and material transfer amounts at 15 A. The molten pool, pores and spread out of molten metal are formed on the cathode after arc erosion. Furthermore, molten pool, pores and spread out of molten metal decreases as the ratios of CNTs to TiB2 increase. © 2019, Editorial Office of Acta Materiae Compositae Sinica. All right reserved.
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页码：2869 / 2877
页数：8
相关论文
共 25 条
  • [1] Zhang X.H., Zhang Y., Tian B.H., Et al., Arc erosion behavior of the Al<sub>2</sub>O<sub>3</sub>-Cu/(W, Cr) electrical contacts, Composites Part B: Engineering, 160, pp. 110-118, (2018)
  • [2] Zhu S.X., Liu Y., Tian B.H., Et al., Arc erosion behavior and mechanism of Cu/Cr20 electrical contact material, Vacuum, 143, pp. 129-137, (2017)
  • [3] Li G., Liu Y., Guo X., Et al., Arc erosion behavior of TiB<sub>2</sub>/Cu composites, Acta Materiae Compositae Sinica, 35, 3, pp. 616-622, (2018)
  • [4] Li Z., Jin H., Li S., Et al., Research and development of hybrid reinforced metal matrix composites, Materials China, 35, 9, pp. 26-30, (2016)
  • [5] Qin Y., Geng L., Ni D., Dry sliding wear behavior of extruded titanium matrix composite reinforced by in situ TiB whisker and TiC particle, Journal of Composite Materials, 46, 14, pp. 4980-4985, (2011)
  • [6] Zhou X., Su D., Wu C., Et al., Tensile mechanical properties and strengthening mechanism of hybrid carbon nanotube and silicon carbide nanoparticle-reinforced magnesium alloy composites, Journal of Nanomaterials, 2, (2012)
  • [7] Carvalho O., Buciumeanu M., Madeira S., Et al., Dry sliding wear behavior of AlSi-CNTs-SiCp hybrid compo-sites, Tribology International, 90, pp. 148-156, (2015)
  • [8] Treacy M.M.J., Ebbesen T.W., Gibson J.M., Exceptionally high Young's modulus observed for individual carbon nanotubes, Nature, 381, 6584, pp. 678-680, (1996)
  • [9] Kim P., Shi L., Majumdar A., Et al., Thermal transport measurements of individual multiwalled nanotubes, Physical Review Letters, 87, 21, (2001)
  • [10] Ebbesen T.W., Lezec H.J., Hiura H., Et al., Electrical conductivity of individual carbon nanotubes, Nature, 382, 6586, pp. 54-56, (1996)
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