Interfacial reactions in the Sn-In-Zn/Ag and Sn-In-Zn/Ni couples

Sinn Wen Chen; Ching Feng Yang; Hsin-Jay Wu; Ru Bo Chang; Chia Ming Hsu

doi:10.1016/j.matchemphys.2011.11.057

Interfacial reactions in the Sn-In-Zn/Ag and Sn-In-Zn/Ni couples

Sinn Wen Chen^*, Ching Feng Yang, Hsin-Jay Wu, Ru Bo Chang, Chia Ming Hsu

^*Corresponding author for this work

Department of Materials Science and Engineering

Research output: Contribution to journal › Article

9 Scopus citations

Abstract

Sn-In-Zn alloys are promising Pb-free solders. Their interfacial reactions with Ag and Ni substrates at 230 °C are experimentally determined using reaction couple techniques. The reaction path is liquid/Ag in the Sn-20 wt%In-x wt%Zn/Ag couple when the Zn content is less than 0.7 wt%, and the reaction path changes to liquid/ε-AgZn₃/γ-Ag₅Zn ₈/-AgZn/Ag when the Zn content is 5 wt%Zn. The reaction path is liquid/Ni₃Sn₄/Ni when the Zn content is less than 1.0 wt%, and the reaction path becomes liquid/γ-Ni₅Zn ₂₁/(Ni₃Sn₄)/Ni when the Zn content is higher than 2.0 wt%. The reaction paths in both two kinds of couples are affected by the Zn addition.

Original language	English
Pages (from-to)	481-487
Number of pages	7
Journal	Materials Chemistry and Physics
Volume	132
Issue number	2-3
DOIs	https://doi.org/10.1016/j.matchemphys.2011.11.057
State	Published - 15 Feb 2012

Keywords

Intermetallic compounds
Metals
Phase equilibria
Phase transitions

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title = "Interfacial reactions in the Sn-In-Zn/Ag and Sn-In-Zn/Ni couples",

abstract = "Sn-In-Zn alloys are promising Pb-free solders. Their interfacial reactions with Ag and Ni substrates at 230 °C are experimentally determined using reaction couple techniques. The reaction path is liquid/Ag in the Sn-20 wt%In-x wt%Zn/Ag couple when the Zn content is less than 0.7 wt%, and the reaction path changes to liquid/ε-AgZn3/γ-Ag5Zn 8/-AgZn/Ag when the Zn content is 5 wt%Zn. The reaction path is liquid/Ni3Sn4/Ni when the Zn content is less than 1.0 wt%, and the reaction path becomes liquid/γ-Ni5Zn 21/(Ni3Sn4)/Ni when the Zn content is higher than 2.0 wt%. The reaction paths in both two kinds of couples are affected by the Zn addition.",

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