TY - JOUR
T1 - The maximum fluidity length of solidifying Sn-Cu-Ag-Ni solder alloys
AU - Gourlay, C. M.
AU - Read, J.
AU - Nogita, K.
AU - Dahle, A. K.
N1 - Funding Information:
The authors thank Nihon Superior Co. Ltd for financial support, E. McDonald for conducting the binary Sn-Cu experiments, B. Meylan for plotting Fig. 9b, J.D. Gates for carrying out some of the metallography, and T. Ventura, K. Watling, and K. Sweatman for fruitful discussions.
PY - 2008/1
Y1 - 2008/1
N2 - During wave soldering, it is important that a solder is able to flow easily to fill joints and to drain away to leave tidy fillets. The maximum fluidity length (L f) is a simple measure of the flow behavior of solidifying alloys, defined as the distance a cooling and solidifying alloy can flow in a constant cross-section before the developing microstructure arrests flow. This paper explores the influence of alloy composition on L f in Sn-rich Sn-Cu-Ag-Ni alloys with compositions relevant to wave soldering. Significant differences in L f are measured among candidate lead-free solder alloys, which are discussed with respect to the phase diagrams and the mode of solidification.
AB - During wave soldering, it is important that a solder is able to flow easily to fill joints and to drain away to leave tidy fillets. The maximum fluidity length (L f) is a simple measure of the flow behavior of solidifying alloys, defined as the distance a cooling and solidifying alloy can flow in a constant cross-section before the developing microstructure arrests flow. This paper explores the influence of alloy composition on L f in Sn-rich Sn-Cu-Ag-Ni alloys with compositions relevant to wave soldering. Significant differences in L f are measured among candidate lead-free solder alloys, which are discussed with respect to the phase diagrams and the mode of solidification.
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U2 - 10.1007/s11664-007-0248-8
DO - 10.1007/s11664-007-0248-8
M3 - Article
AN - SCOPUS:37249093525
VL - 37
SP - 51
EP - 60
JO - Journal of Electronic Materials
JF - Journal of Electronic Materials
SN - 0361-5235
IS - 1
ER -