Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.jallcom.2008.09.061
Title: Development of high strength Sn-Cu solder using copper particles at nanolength scale
Authors: Alam, M.E.
Nai, S.M.L.
Gupta, M. 
Keywords: Mechanical properties
Microstructure
Powder metallurgy
Sintering
Issue Date: 12-May-2009
Source: Alam, M.E., Nai, S.M.L., Gupta, M. (2009-05-12). Development of high strength Sn-Cu solder using copper particles at nanolength scale. Journal of Alloys and Compounds 476 (1-2) : 199-206. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jallcom.2008.09.061
Abstract: In this study, varying amounts of nanolength scale copper particles were incorporated into tin by microwave sintering assisted powder metallurgy route. Near dense materials exhibiting near equiaxed grains were obtained. Coefficient of thermal expansion reduced marginally due to the presence of Cu particles. Results of tensile testing revealed that with the addition of 0.35 vol.% (∼0.43 wt.%) of Cu in pure Sn, a significant improvement in yield strength (∼233%) and ultimate tensile strength (∼159%) is realized, when compared with that of commercially available Sn-0.7 wt.% Cu solder. Furthermore, Sn-Cu solder materials developed here also exhibited comparable resistivity with that of eutectic Sn-0.7 wt.% Cu commercial solder. The morphology of pores and intermetallic compounds were found to be the dominating factors affecting the strength of the materials synthesized in this study. © 2008 Elsevier B.V. All rights reserved.
Source Title: Journal of Alloys and Compounds
URI: http://scholarbank.nus.edu.sg/handle/10635/59934
ISSN: 09258388
DOI: 10.1016/j.jallcom.2008.09.061
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