TY - JOUR
T1 - Development of a microwave sintered TiO2 reinforced Sn-0.7wt%Cu-0.05wt%Ni alloy
AU - Mohd Salleh, M. A.A.
AU - McDonald, S. D.
AU - Terada, Y.
AU - Yasuda, H.
AU - Nogita, K.
N1 - Funding Information:
The authors would like to gratefully acknowledge financial support from the University of Queensland (UQ)-Nihon Superior (NS) collaborative research program. Synchrotron micro XRF experiments were performed at the SPring-8 BL37XU (Project ID: 2013B1524 and 2014A1360 ) while SEM, TEM and XPS was performed at the Centre for Microscopy and Microanalysis (CMM) under the Australian Microscopy and Microanalysis Research Facility (AMMRF). Authors would like to acknowledge Dr. Barry J. Wood for his advices on the XPS analysis. DSC analysis was performed using the facility of Australian National Fabrication Facility (ANNF) at the University of Queensland . Mohd Salleh is financially supported for his study by the Malaysian Education Ministry and Universiti Malaysia Perlis.
Publisher Copyright:
© 2015 Elsevier Ltd.
PY - 2015/10/5
Y1 - 2015/10/5
N2 - The use of reinforcing nano-size ceramic particulates is a promising method to improve the mechanical and thermal properties of lead-free solder materials. In addition, advanced fabrication processes routes such as microwave sintering powder metallurgy (PM) enhance properties in the fabrication of composite solders. To elucidate the mechanisms underlying the improvements in mechanical and thermal properties, Sn-Cu-Ni with TiO2 nano-composite additions, fabricated via a microwave sintering PM method, were investigated using state-of-the-art characterization techniques. Synchrotron micro-X-ray fluorescence (XRF) results detected trace Ti in the solder matrix. This was consistent with X-ray photoelectron spectroscopy (XPS) and high resolution transmission electron microscopy (HRTEM) results which indicated that nano crystals were within the Sn matrix. It is possible these nano crystal form due to the migration of Ti during the rapid high energy microwave heating. A hypothesis of improved thermal and mechanical properties of nano-composite solders is discussed based on the results and the microwave sintering PM route was discussed as a promising method for next generation lead-free solder processing.
AB - The use of reinforcing nano-size ceramic particulates is a promising method to improve the mechanical and thermal properties of lead-free solder materials. In addition, advanced fabrication processes routes such as microwave sintering powder metallurgy (PM) enhance properties in the fabrication of composite solders. To elucidate the mechanisms underlying the improvements in mechanical and thermal properties, Sn-Cu-Ni with TiO2 nano-composite additions, fabricated via a microwave sintering PM method, were investigated using state-of-the-art characterization techniques. Synchrotron micro-X-ray fluorescence (XRF) results detected trace Ti in the solder matrix. This was consistent with X-ray photoelectron spectroscopy (XPS) and high resolution transmission electron microscopy (HRTEM) results which indicated that nano crystals were within the Sn matrix. It is possible these nano crystal form due to the migration of Ti during the rapid high energy microwave heating. A hypothesis of improved thermal and mechanical properties of nano-composite solders is discussed based on the results and the microwave sintering PM route was discussed as a promising method for next generation lead-free solder processing.
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U2 - 10.1016/j.matdes.2015.05.077
DO - 10.1016/j.matdes.2015.05.077
M3 - Article
AN - SCOPUS:84941264249
VL - 82
SP - 136
EP - 147
JO - International Journal of Materials in Engineering Applications
JF - International Journal of Materials in Engineering Applications
SN - 0261-3069
ER -