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Bi对Pb-Al层状复合电极材料制备与性能的影响
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国家自然科学基金(50664005);国家高技术研究发展计划“863”计划(2009AA03Z512);昆明理工大研究生科技创新基金项目(YCA0704)


Effect of Bi on Preparation and Performance of Pb-Al Laminated Composite Electrode Materials
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    摘要:

    采用热物理温度场浸镀成Al-Bi双金属层状板材,并利用液固包覆技术制备Pb-Bi-Al层状复合电极材料,借助线性扫描伏安法(LSV)、SEM、抗弯曲性能试验等测试手段对样品的结构与性能进行表征。结果表明,第三组元过渡金属Bi的引入,实现了Pb与Al之间的冶金结合,所制得的Pb-Bi-Al层状复合电极材料与同体积的传统Pb合金电极相比,机械强度提高33.7%,质量减轻11.0%,电极极化电位降低21.8%,且在极化区具有趋近于0的致钝电流。因此,Al-Bi-Pb层状复合电极材料是一种质量轻、导电好、强度高、耐腐蚀的电极材料,有着重要的开发应用前景。

    Abstract:

    Laminated bimetal Al-Bi sheets were synthesized by thermo-physical temperature field hot-dip method. The Pb-Bi-Al laminated composite electrode materials were prepared by liquid-solid coating technique, and their microstructure and performance were characterized by linear scanning voltammetry (LSV), SEM and bending resistant measurement. The results show that the metallurgical bonding of the Pb-Al immiscible system is realized by the introduction of the third element of transition metal Bi. Compared with that of the conventional lead electrode, the bending strength of Pb-Bi-Al laminated composite electrode materials was increased by 33.7%, the mass was decreased by 11.0% and the electrode polarized potentials were reduced by 21.8%. In particular, it has a passivation current close to 0 in the polarized area. Therefore the Pb-Bi-Al laminated composite electrodes are excellent electrode materials with light mass, good conductivity, high strength and good corrosion resistance, and they have an important prospect of exploitation and utilization.

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竺培显,周生刚,孙 勇,陈敬超,黄子良,孙丽达. Bi对Pb-Al层状复合电极材料制备与性能的影响[J].稀有金属材料与工程,2010,39(5):911~914.[Zhu Peixian, Zhou Shenggang, Sun Yong, Chen Jingchao, Huang Ziliang, Sun Lida. Effect of Bi on Preparation and Performance of Pb-Al Laminated Composite Electrode Materials[J]. Rare Metal Materials and Engineering,2010,39(5):911~914.]
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  • 收稿日期:2009-05-19
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