The conditions under which electrical contacts are used differ widely. In selecting a material the various contact phenomena must be considered and the problems that can arise under different operating conditions understood. The final choice is frequently a material produced by powder metallurgy. Materials and fabrication are aimed at optimizing contact properties and method of attachment. Some contact problems and the solutions that have been developed are reviewed.
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References
1.
FarrallG. A., ‘Arcing Phenomena at Electrical Contacts’, G.E. Research Rep., 1969.
2.
Llewellyn JonesF., ‘The Physics of Electrical Contacts’, 1957: London (Oxford University Press).
3.
HausnerH. H., Powder Met. Bull., 1947, 1, 6.
4.
BlumG., ‘Kontaktwerkstoffe in der Elektrotechnik ‘, 1962; ERA Rep. 5239, Pt. 2, 1967.
5.
kleinleA.Metall, 1961, 15, 666; ERA Rep. 5240, 1968.
6.
SchreinerH. and GeldnerE., Elektrische Kontakte’, p. 162. 1970: Berlin (VDE-Verlag).
7.
ErkA. and FinkeH., ETZ-A86, p. 297, 1965.
8.
TurnerC. and TurnerH. W., ‘The Bounce and Welding of Contactor Contacts’; ERA Rep. 5240, 1968.
9.
ShenY., ZdanukE., and KrockR., ‘Electrical Contacts 1972’, Pt. 1, p. 333. 1972: Chicago (Illinois Institute of Technology).
10.
MattheyJohnson and Co. Ltd., Brit. Patent1 082 971, 1967.
11.
RoseD. and HeilV., Unpublished report, Mallory Metallurgical Company. Indianapolis, 1973.
