Physical properties of some Sn-based melts

被引：3
|
作者：
Sidorov, Valeriy [1 ]
Uporov, Sergej [1 ]
Rozitsina, Elena [1 ]
Yagodin, Denis [1 ]
Grushevskij, Kirill [1 ]
Ilinykh, Nina [2 ]
机构：
[1] Ural State Pedag Univ, Ekaterinburg 620017, Russia
[2] Ural Tech Inst Telcomm & Informat, Ekaterinburg, Russia
来源：
LAM14 - XIV LIQUID AND AMORPHOUS METALS CONFERENCE | 2011年 / 15卷
关键词：
SOLDER; RELIABILITY;
D O I：
10.1051/epjconf/20111501015
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The physical properties (viscosity, density, electroresistivity and magnetic susceptibility) of pure tin, copper, silver, some binary (Sn - Ag, Sn - Cu, Sn - Bi, Sn - Zn) and ternary (Sn-Ag-Cu, Sn-Bi-Ag, Sn-Bi-Zn) alloys with near eutectic compositions are investigated in wide temperature ranges. The irreversible decrease of viscosity in pure tin melt is discovered at 820 degrees C during heating. The similar anomaly with the following hysteresis of dynamic viscosity was fixed for binary and ternary alloys but at higher temperatures - 900 degrees C and 950 degrees C respectively. For all the systems it was shown that the alloys with eutectic compositions differ significantly in their electric and magnetic properties from hypo- and hypereutectic ones. Qualitative and quantitative metallographic analysis for Sn-3.8wt.%Ag-0.7wt.%Cu samples, heated low and above characteristic temperatures, showed the influence of melt overheating on crystallization kinetics.
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页数：5
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