著者

板垣 乙未生 青木 豊松 Kimio Itagaki Toyomatsu Aoki

出版者

東北大学素材工学研究所

雑誌

東北大学素材工学研究所彙報 (ISSN:09194827)

巻号頁・発行日

vol.52, no.1, pp.1-8, 1996-12

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As a fundamental study of a new soldering system which avoids the use of a solder containing lead to protect the environment from the pollution, the heat content and the heat of eutectic reaction of the 63 mass% Sn-37 mass% Pb, 96.5Sn-3.5Ag, 42Sn-58Bi and 48Sn-52In eutectic alloys were determined in a range from 298K to the temperature which is about 30K above the eutectic point by using an adiabatic calorimeter. The obtained heat content, J_T=H_T-H_<298> (J/g), of the liquid alloys and heat of eutectic reaction, Δ_eH(J/g), are; 63Sn-37Pb : J_T=0.208T-10.0 Δ_eH=45.4 96.5Sn-3.5Ag : J_T=0.274T-27.5 Δ_eH=59.0 42Sn-58Bi : J_T=0.192T-8.0 Δ_eH=47.4 48Sn-52In : J_T=0.289T-57.1 Δ_eH=23.9