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Supervisor：Jiangxi University Of Science And Technology
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Jiangxi Nonferrous Metals Society
ISSN：1674-9669
CN：36-1311/TF
CODEN YJKYA9
Volume 5 Issue 4
Aug.  2014
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WANG Song, XIE Ming, CHEN Yongtai, ZHANG Jiming, WANG Saibei. Arc erosion characteristics of Al2O3La2O3Y2O3/Cu composite[J]. Nonferrous Metals Science and Engineering, 2014, 5(4): 28-31. DOI: 10.13264/j.cnki.ysjskx.2014.04.006
Citation: WANG Song, XIE Ming, CHEN Yongtai, ZHANG Jiming, WANG Saibei. Arc erosion characteristics of Al2O3La2O3Y2O3/Cu composite[J]. Nonferrous Metals Science and Engineering, 2014, 5(4): 28-31. DOI: 10.13264/j.cnki.ysjskx.2014.04.006
shu

Arc erosion characteristics of Al2O3La2O3Y2O3/Cu composite

  • 1.

    State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106, China

  • 2.

    School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China

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  • Received Date: June 14, 2014
  • Published Date: August 30, 2014
    Graphical Abstract
    • Abstract
  • Al2O(La2O3Y2O3/Cu composites are prepared by spray deposition and internal oxidation. The arc erosion phenomena of this composite contact in direct current state of 20 Y/20 A are studied, and comparative analysis with Al2O(/Cu composites are carried out. The changes of the contact material weighing and surface microstructure of the contact after arc erosion are investigated by electronic balance and SEM. It can be concluded that adding Y2O3, La2O3 rare earth oxide particles can effectively reduce the amount of material transfer of the contact. The welding resistance and anti-burning of Al2O(La2O3Y2O3/Cu composite are superior to that of Al2O(/Cu composite. Under direct current resistance load condition, the anode contact surface forms pits while the cathode contact surface forms projection, and there are two arc erosion morphological characters, i.e. starchiness coagulum and eruption pits on the contact surface of Al2O(La2O3Y2O3/Cu composite.
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    • References (15)
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