Mechanical properties of Pb/Sn Pb/In and Sn‐In solders

W. Kinzy Jones (Department of Mechanical Engineering, Florida International University, Florida, USA)
Yanqing Liu (Department of Mechanical Engineering, Florida International University, Florida, USA)
Milind Shah (Department of Mechanical Engineering, Florida International University, Florida, USA)
Robert Clarke (Teledyne Electronic Technologies, Los Angeles, California, USA)

Soldering & Surface Mount Technology

ISSN: 0954-0911

Publication date: 1 April 1998

Abstract

The mechanical properties of eight solder alloys from the Pb‐Sn‐In‐Ag alloy systems were determined over the temperature range ‐200°C to 100°C, using uniaxial tensile tests, dynamic mechanical analysis (DMA), acoustic pulse methods and dilatometry. In general, the strength and elastic modulus of the alloys studied was inversely dependent on temperature. PbSn, PbIn and SnIn alloys were observed to turn superplastic with elongations over 100 per cent at temperatures of 50°C or above. The Pb‐based and In‐Sn eutectic solders possessed superplasticity at temperatures greater than 50°C. From these results, deformation and fracture processes are reviewed, and the appropriate fracture mechanism is proposed.

Keywords

Citation

Kinzy Jones, W., Liu, Y., Shah, M. and Clarke, R. (1998), "Mechanical properties of Pb/Sn Pb/In and Sn‐In solders", Soldering & Surface Mount Technology, Vol. 10 No. 1, pp. 37-41. https://doi.org/10.1108/09540919810203847

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Publisher

:

MCB UP Ltd

Copyright © 1998, Company

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