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This paper prepares the diffusion couple of Pb/Sn layered composite by hot pressing, treat it at different holding times, and investigates the appearance characteristics and forming mechanism of the couple by means of SEM-EDS. The results show that Sn atoms preferentially diffuse into the Pb side under the heating temperature of 503K and the pressure of 0.5MPa. With the increase of the welding time, a eutectic liquid layer is formed on the interface of Pb/Sn and the diffusion-dissolution of Pb and Sn atoms are completed by simulta-neous extension and homogenization. The research also demonstrates the star studded distribution of α-Pb and β-Sn solid solutions.
diffusive coupled-phase of Pb/Sn layered composite, diffusion-solution layer, enthalpy of formation, layered anode material
[1] Tian Minbo, Ma PengFei, Zhang Cheng, J. Printed Circuit In-formation, 3, 12 (2004).
[2] Lu Jianhong, Kuang YaFei, J. Materials Protection, 40, 12 (2007).
[3] Shervedani R. K., Isfahani A. Z., Khodavisy R.., J. Power Sources, 164, 890 (2007).
[4] Zhou Shenggang, Zhang Jin, Zhu Peixian, Sun Yong, Journal of Yunnan University, 31, 600 (2009).
[5] Zhu Peixian, Zhou Shenggang, Sun Yong, Huang Wenfang, Transactions of Materials and Heat Treatment, 30, 1 (2009).
[6] Ma Huiyu, Zhu Peixian, Zhou Shenggang, Xu JianAdvanced Materials Research, 150, 303 (2010).
[7] Zou Qinhua, J. Shanghai Nonferrous Metals, 18, 60 (1997).
[8] D. Gupta, K.Vieregge, W. Gust, J. Acta. Mater., 47, 5 (1999).
[9] Pan Jinsheng, Tong Jianmin, Tian Minbo, Fundamentals of Materials Science, Beijing Tsinghua University Press, 434 (1998).
[10]Zhou Shenggang, Study on the synthesis and properties of Pb-Al layered composite anode for energy saving, Kunming Uni-versity of Science and Technology, Kunming, 2011.
[11]Akura Takeuchi, Akihisa Inoue, J. Materials Transactions, 46, 2817 (2005).
[12]A.O. Popoola, I.G. Baoku, B.I Olajuwon, International Journal of Heat and Technology, 34, 15 (2016).