摘要
选取Ⅰ(50%Pb-50%Sn)、Ⅱ(35%Pb-60%Sn-5%Zn)两种合金焊料,采用热浸镀的方法在钢表面覆镀媒介金属,用过渡液相扩散焊接技术将镀膜钢板与铅板进行焊合,制备铅/钢层状复合材料。借助SEM,XRD等手段对样品的界面形貌及生成相进行了测试,使用电化学工作站、四探针法等手段分别对试样的物理及化学性能进行了测试。结果表明:铅/钢层状复合材料的界面结合良好。与传统铅阳极样品比较,优化工艺参数制得的铅/钢层状复合阳极样品的电极电位分别负移120 mV和180 mV,催化活性明显提高。两种铅/钢层状复合材料电阻率下降了28%—40%。
Ⅰ （50%Pb-50%Sn） and Ⅱ （35%Pb-60%Sn-5%Zn） solder alloys were selected as a medium layer, and the solder alloys were plated by hot dipping. Both hot-dipped steel and lead were welded by transient liquid phase diffusion bonding-TLP, and the lead/steel laminated composites were obtained. The interface morphology and phase of samples were observed by SEM and XRD. Physical and chemical properties were tested by electrochemical workstation and four-probe techniques. The results show that the interface of lead/steel laminated composite is good. Comparing with conventional lead anode, the elec- trode potential of layered composite anodes which prepared by optimized parameters decreased 120 mV and 180 mV, respectively. The catalytic activity of the samples was significantly improved; The resistivity of composites decreased 28%--40%.
出处
《材料研究学报》
EI
CAS
CSCD
北大核心
2013年第1期60-64,共5页
Chinese Journal of Materials Research
基金
国家高技术研究发展计划新材料技术领域2009AA03Z512
国家自然科学基金51074082资助项目~~
关键词
复合材料
铅
钢层状复合材料
低熔点合金
界面形貌
阳极材料
composites, lead/steel laminated composites, low melting point alloy, interface morpholo-gy, anode material
