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The goal of this research is to evaluate the effects of La addition on the microstructure and microhardness of Sn-Ag based solders. Sn-3.5Ag-xLa ternary alloy solders were prepared by adding 0-1.0 wt% La into a Sn-3.5Ag alloy. Copper substrates were then dipped into these solders and aged at 150degC for up to 625 hours. The microstructure and microhardness of the as solidified solder and the aged...
The goal of this research is to evaluate the effects of La addition on the microstructure and microhardness of Sn-Ag based solders. Sn-3.5Ag-xLa ternary alloy solder were prepared by adding 0-1.0 wt% La into a Sn-3.5Ag alloy. Copper substrates were then dipped into these solders and aged at 150degC for up to 625 hours. The microstructure and microhardness of the as solidified solder and the aged solder/copper...
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