Effects of rare earth La on microstructure and properties of Ag-21Cu-25Sn alloy ribbon prepared by melt spinning

Xue Ma; Liangfeng Li; Zuhua Zhang; Hao Wang; Enze Wang; Tai Qiu

doi:10.1016/j.matdes.2015.05.083

Effects of rare earth La on microstructure and properties of Ag-21Cu-25Sn alloy ribbon prepared by melt spinning

Xue Ma, Liangfeng Li, Zuhua Zhang, Hao Wang, Enze Wang, Tai Qiu

College of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

Ag-21Cu-25Sn alloy ribbon as a promising intermediate temperature alloy solder (400-600°C) was prepared by melt spinning technique in this paper. Rare earth La was added into Ag-21Cu-25Sn alloy to refine the microstructures and improve the wettabilities of as-prepared alloy solders. The phase constitutions, microstructures, melting temperatures and wettabilities of selected specimens were respectively tested. The results showed that the dominant phase constitutions of Ag-21Cu-25Sn-xLa alloy ribbons were Ag₃Sn and Cu₃Sn. The grain size of Ag-21Cu-25Sn-xLa alloy decreased with the addition of La increasing. La addition reduced the melting temperatures of Ag-21Cu-25Sn-xLa alloy ribbons, and effectively improved the wettabilities of the alloy ribbons. When the addition of La was 0.5wt%, the wettability of as-prepared alloy solder achieved the optimal value of 158cm²g^-1 under brazing temperature 600°C and dwell time 15min. In addition, raising brazing temperature and prolonging dwell time could improve the wettability of Ag-21Cu-25Sn-xLa alloy ribbon.

Original language	English
Pages (from-to)	1-5
Number of pages	5
Journal	Materials and Design
Volume	83
DOIs	https://doi.org/10.1016/j.matdes.2015.05.083
State	Published - 15 Oct 2015

Keywords

Ag-Cu-Sn alloy
Melt spinning technique
Melting temperature
Rare earth La
Wettability

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10.1016/j.matdes.2015.05.083

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@article{e8ce15846a4340b8a97c1f2a1f3897d8,

title = "Effects of rare earth La on microstructure and properties of Ag-21Cu-25Sn alloy ribbon prepared by melt spinning",

abstract = "Ag-21Cu-25Sn alloy ribbon as a promising intermediate temperature alloy solder (400-600°C) was prepared by melt spinning technique in this paper. Rare earth La was added into Ag-21Cu-25Sn alloy to refine the microstructures and improve the wettabilities of as-prepared alloy solders. The phase constitutions, microstructures, melting temperatures and wettabilities of selected specimens were respectively tested. The results showed that the dominant phase constitutions of Ag-21Cu-25Sn-xLa alloy ribbons were Ag3Sn and Cu3Sn. The grain size of Ag-21Cu-25Sn-xLa alloy decreased with the addition of La increasing. La addition reduced the melting temperatures of Ag-21Cu-25Sn-xLa alloy ribbons, and effectively improved the wettabilities of the alloy ribbons. When the addition of La was 0.5wt%, the wettability of as-prepared alloy solder achieved the optimal value of 158cm2g-1 under brazing temperature 600°C and dwell time 15min. In addition, raising brazing temperature and prolonging dwell time could improve the wettability of Ag-21Cu-25Sn-xLa alloy ribbon.",

keywords = "Ag-Cu-Sn alloy, Melt spinning technique, Melting temperature, Rare earth La, Wettability",

author = "Xue Ma and Liangfeng Li and Zuhua Zhang and Hao Wang and Enze Wang and Tai Qiu",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd.",

year = "2015",

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doi = "10.1016/j.matdes.2015.05.083",

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T1 - Effects of rare earth La on microstructure and properties of Ag-21Cu-25Sn alloy ribbon prepared by melt spinning

AU - Ma, Xue

AU - Li, Liangfeng

AU - Zhang, Zuhua

AU - Wang, Hao

AU - Wang, Enze

AU - Qiu, Tai

PY - 2015/10/15

Y1 - 2015/10/15

N2 - Ag-21Cu-25Sn alloy ribbon as a promising intermediate temperature alloy solder (400-600°C) was prepared by melt spinning technique in this paper. Rare earth La was added into Ag-21Cu-25Sn alloy to refine the microstructures and improve the wettabilities of as-prepared alloy solders. The phase constitutions, microstructures, melting temperatures and wettabilities of selected specimens were respectively tested. The results showed that the dominant phase constitutions of Ag-21Cu-25Sn-xLa alloy ribbons were Ag3Sn and Cu3Sn. The grain size of Ag-21Cu-25Sn-xLa alloy decreased with the addition of La increasing. La addition reduced the melting temperatures of Ag-21Cu-25Sn-xLa alloy ribbons, and effectively improved the wettabilities of the alloy ribbons. When the addition of La was 0.5wt%, the wettability of as-prepared alloy solder achieved the optimal value of 158cm2g-1 under brazing temperature 600°C and dwell time 15min. In addition, raising brazing temperature and prolonging dwell time could improve the wettability of Ag-21Cu-25Sn-xLa alloy ribbon.

AB - Ag-21Cu-25Sn alloy ribbon as a promising intermediate temperature alloy solder (400-600°C) was prepared by melt spinning technique in this paper. Rare earth La was added into Ag-21Cu-25Sn alloy to refine the microstructures and improve the wettabilities of as-prepared alloy solders. The phase constitutions, microstructures, melting temperatures and wettabilities of selected specimens were respectively tested. The results showed that the dominant phase constitutions of Ag-21Cu-25Sn-xLa alloy ribbons were Ag3Sn and Cu3Sn. The grain size of Ag-21Cu-25Sn-xLa alloy decreased with the addition of La increasing. La addition reduced the melting temperatures of Ag-21Cu-25Sn-xLa alloy ribbons, and effectively improved the wettabilities of the alloy ribbons. When the addition of La was 0.5wt%, the wettability of as-prepared alloy solder achieved the optimal value of 158cm2g-1 under brazing temperature 600°C and dwell time 15min. In addition, raising brazing temperature and prolonging dwell time could improve the wettability of Ag-21Cu-25Sn-xLa alloy ribbon.

KW - Ag-Cu-Sn alloy

KW - Melt spinning technique

KW - Melting temperature

KW - Rare earth La

KW - Wettability

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DO - 10.1016/j.matdes.2015.05.083

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JO - Materials and Design

JF - Materials and Design

ER -

Effects of rare earth La on microstructure and properties of Ag-21Cu-25Sn alloy ribbon prepared by melt spinning

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