添加稀土氧化物对Ag/SnO_2电接触材料抗熔焊性能的影响  

Influence of rare earth oxide on anti-welding performance of Ag/SnO_2 electrical contact materials

作　　者：朱艳彩[1] 王景芹[1] 安立强[2] 王海涛[1] 

机构地区：[1]河北工业大学电磁场和电器可靠性省部共建重点实验室,天津300130 [2]河北建工集团,河北石家庄050000

出　　处：《河北工业大学学报》2014年第3期16-20,共5页Journal of Hebei University of Technology

基　　金：河北省自然科学基金(E2009000063)

摘　　要：在交流接触器接通和分断试验条件下,以百利TJ40系列交流接触器为载体,对同一种工艺方法、稀土氧化物La2O3和Ce2O3作为添加剂制备的纳米Ag/SnO2电触头材料进行了相同操作次数的接通和分断试验.试验结束后,通过扫描电镜观察触头在接通和分断后的表面形貌和微观组织,并对微区成分进行了分析.采用JF04C电接触触点材料测试仪对影响触头材料抗熔焊性能的电弧参数进行了测试.对比各组试验结果表明,稀土氧化物La2O3和Ce2O3的加入有效降低了电触头材料的电弧参数,提高了Ag/SnO2电接触材料的抗熔焊性.Connecting and breaking capability tests with the same operation numbers were made on Ag/SnO2 electrical contact materials produced by the same process but with different rare earth oxides La2O3 and Ce2O3, under the make and break conditions ofAC contactor. The surface microstructures, morphology and composition were analyzed by scanning electron microscope after the test. The arc parameters ofinfluencing anti-welding performance was tested by electric contact material tester JF04C. The comparison and analysis of the test results show that appropriate rare earth oxides La2O3 and Ce2O3 can effectively reduced the arc parameters of electrical contact materials and thus increase the anti-welding per- formance of the materials.

关 键 词：稀土氧化物 AG SNO2 扫描电镜 微观组织 抗熔焊性能 

分 类 号：TM501.3[电气工程—电器]