Title :
Effects of additives on the AgSnO2 contacts erosion behavior
Author :
Mingzhe, Rong ; Qiping, Wang
Author_Institution :
Dept. of Electr. Eng., Xi´´an Jiaotong Univ., China
Abstract :
The switching performances of several improved silver tin-oxide materials with several kinds of additives, including WO3,Bi 2O3,In2O3, were conducted in an accelerated testing machine. Based on the experimental results and the observations of the contacts surface microstructure, the effects of additives on the silver tin-oxide contacts erosion behavior are studied. It is indicated that the effects of additives on the wettability between liquid silver metal and the contact surface, the distribution and the thermal stability of additives are critical in the determination of erosion characteristics and the morphological features of the contact surface. The erosion behaviors of silver-tin oxide materials with different additives are compared, and the doping effect on surface morphology is presented
Keywords :
electrical contacts; silver; tin compounds; wear; Ag-SnO2; accelerated testing; additives; doping; erosion; liquid metal; morphology; silver tin-oxide contacts; surface microstructure; switching; thermal stability; wettability; Additives; Bismuth; Conducting materials; Doping; Life estimation; Microstructure; Performance evaluation; Silver; Surface morphology; Thermal stability;
Conference_Titel :
Electrical Contacts, 1993., Proceedings of the Thirty-Ninth IEEE Holm Conference on
Conference_Location :
Pittsburgh, PA
Print_ISBN :
0-7803-1270-8
DOI :
10.1109/HOLM.1993.489657
