Electrocontact heating in a Sn60-Pb40 solder alloy

Rong Chen, Fuqian Yang

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


The behaviour of electrocontact heating is investigated in a Sn60-Pb40 alloy by using the modified impression technique and dc electric current in the range from 0 to 2.5 A at 298 K. The localized temperature increases with the increase in electric current, and the temperature rise on the surface at thermal equilibrium state is proportional to the square of the electric current. The increase in the temperature is consistent with the results from the finite element simulation, taking account of the effect of the oxide layer and thermal contact resistance on the contact surface. The simulation results show that the thickness of the oxide layer has a strong influence on the thermal equilibrium state of the electrocontact heating. Microstructural observation indicates that the current stressing has no effect on the evolution of microstructures under the experimental conditions.

Original languageEnglish
Article number065404
JournalJournal of Physics D: Applied Physics
Issue number6
StatePublished - Mar 21 2008

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films


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