有色金属科学与工程Issue(4)：28-31,4.DOI:10.13264/j.cnki.ysjskx.2014.04.006
Al2O3La2O3Y2O3/Cu复合材料的电弧侵蚀特性研究
Arc erosion characteristics of Al 2O3La2O3Y2O3/Cu composite
摘要
Abstract
Al2O3La2O3Y2O3/Cu composites are prepared by spray deposition and internal oxidation. The arc erosion phenomena of this composite contact in direct current state of 20 V/20 A are studied, and comparative analysis with Al2O3/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 Al 2O3La2O3Y2O3/Cu composite are superior to that of Al2O3/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 Al 2O3La2O3Y2O3/Cu composite.关键词
Al2O3La2O3Y2O3/Cu复合材料/电弧侵蚀/材料转移/表面形貌Key words
Al2O3La2O3Y2O3/Cu composite/arc erosion/material transfer/surface morphology分类
矿业与冶金引用本文复制引用
王松,谢明,陈永泰,张吉明,王塞北..Al2O3La2O3Y2O3/Cu复合材料的电弧侵蚀特性研究[J].有色金属科学与工程,2014,(4):28-31,4.基金项目
国家自然科学基金资助项目（51154015）；云南省科技创新团队资助项目 （）
