Title :
The influence of manufacturing process, metal oxide content, and additives on the switching behaviour of Ag/SnO2 in relays
Author :
Braumann, Peter ; Koffler, Andreas
Author_Institution :
Tech. Mater. Div., Umicore AG & Co. KG, Hanau, Germany
Abstract :
As an introduction a brief historical summary of the use of Ag/SnO2 in general-purpose and automotive relays is given. The process for manufacturing contact materials by using wet-chemical precipitation technology (NCF technology) is explained and the potential of this technology for the production and the application of contact materials is demonstrated. The influence of the additives WO3, Bi2O3 and In2O3 is investigated with materials that are based on the powder blending technology and the NCF technology.
Keywords :
additives; bismuth compounds; blending; chemical technology; indium compounds; manufacturing processes; powder technology; precipitation (physical chemistry); relays; silver; tin compounds; tungsten compounds; Ag-SnO2; BiO3; In2O3; NCF technology; WO3; additives; automotive relays; contact materials manufacture; contact materials production; manufacturing process; metal oxide content; powder blending technology; switching behaviour; wet chemical precipitation technology; Additives; Automobiles; Automotive engineering; Automotive materials; Inorganic materials; Manufacturing processes; Power system relaying; Relays; Switches; Welding;
Conference_Titel :
Electrical Contacts, 2004. Proceedings of the 50th IEEE Holm Conference on Electrical Contacts and the 22nd International Conference on Electrical Contacts
Print_ISBN :
0-7803-8460-1
DOI :
10.1109/HOLM.2004.1353100
