2019
DOI: 10.3390/met9050604
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Interfacial Reaction and Microstructure Evolution of Sn-9Zn/Ni(Cu) Solder Joints

Abstract: Sn-9Zn solder is a promising Pb-free solder, but it tends to form bulky intermetallic compounds (IMC) grains at the interface when soldered with common simple metal Cu or Ni substrates. Interfacial reaction between Sn-9Zn solder and Ni(Cu) solid solution substrates at 250 °C and 350 °C were systematically probed in this study. Results showed that when soldered at 250 °C, a Ni5Zn21 layer is formed at Sn-Zn/Ni-20Cu and Sn-Zn/Ni-40Cu joints; and Ni2Sn2Zn + Cu5Zn8 and Cu5Zn8 phases are formed in Sn-Zn/Ni-60Cu and … Show more

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Cited by 3 publications
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“…Third, what are the processes responsible of the phase layers growth? Zinc is a component of newly developed SnZn alloys to be used as leadfree solder (9) ; the eutectic SnZn alloy (Sn-9wt.%Zn), of melting temperature (198,5 • C) which is close to that of the conventional eutectic PbSn solder (183 • C), is a potential https://www.indjst.org/ candidate to be used as a Pb-free Sn-base solder in the electronics industry (10) . Copper is widely used as conductor material owing to its high electrical conductivity and good properties.…”
Section: Introductionmentioning
confidence: 99%
“…Third, what are the processes responsible of the phase layers growth? Zinc is a component of newly developed SnZn alloys to be used as leadfree solder (9) ; the eutectic SnZn alloy (Sn-9wt.%Zn), of melting temperature (198,5 • C) which is close to that of the conventional eutectic PbSn solder (183 • C), is a potential https://www.indjst.org/ candidate to be used as a Pb-free Sn-base solder in the electronics industry (10) . Copper is widely used as conductor material owing to its high electrical conductivity and good properties.…”
Section: Introductionmentioning
confidence: 99%