Accession Number : ADA168168


Title :   Control of Surface Attack by Gallium Alloys in Electrical Contacts.


Descriptive Note : Final rept. 1 Aug 85-31 Mar 86,


Corporate Author : BURTON TECHNOLOGIES INC RALEIGH NC


Personal Author(s) : Burton, Ralph A ; Burton, Ralph G


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a168168.pdf


Report Date : 28 Mar 1986


Pagination or Media Count : 46


Abstract : Electrical contact between a copper plated steel specimen and brushes of graphite and copper through a film of gallium alloy were investigated. Material compatibility phase changes were studied. Techniques of film renewal were tested as were results in inert atmosphere. Two testing machines were developed for both visual observation and long duration high current testing with computer monitoring and control. Keywords include: Current collectors, gallium, homopolar devices, and liquid metals.


Descriptors :   *GALLIUM , *ELECTRIC CONTACTS , *GALLIUM ALLOYS , *LIQUID METALS , *BRUSHES , MONITORING , COMPUTERS , MATERIALS , ATTACK , FILMS , COMPATIBILITY , GRAPHITE , TEST EQUIPMENT , COPPER , VISUAL PERCEPTION , ATMOSPHERES , RARE GASES


Subject Categories : Electrical and Electronic Equipment
      Metallurgy and Metallography


Distribution Statement : APPROVED FOR PUBLIC RELEASE