CAJ | 학술논문

通过引入锡元素作为过渡组元来解决铅?钢界面的结合问题.借助于扫描电镜及能谱仪研究铅?锡?钢层状复合材料的界面形貌及界面处元素分布;通过三点弯曲试验及线性伏安扫描曲线分别研究铅?锡?钢层状复合材料的抗弯强度和电化学性能.结果表明:利用真空热压扩散烧结法可制备界面冶金式结合的铅?锡?钢层状复合材料;铅?锡?钢层状复合电极与传统二元 Pb-1%Ag 电极相比,其析氧电位负移80 mV,催化活性提高了8倍,抗弯强度提高了44.1%.
통과인입석원소작위과도조원래해결연?강계면적결합문제.차조우소묘전경급능보의연구연?석?강층상복합재료적계면형모급계면처원소분포;통과삼점만곡시험급선성복안소묘곡선분별연구연?석?강층상복합재료적항만강도화전화학성능.결과표명:이용진공열압확산소결법가제비계면야금식결합적연?석?강층상복합재료;연?석?강층상복합전겁여전통이원 Pb-1%Ag 전겁상비,기석양전위부이80 mV,최화활성제고료8배,항만강도제고료44.1%.
Tin was introduced as the transition constituent to solve the combining problem of lead-iron interface. The morphology and distribution of elements on interface were studied by scanning electron microscope and energy dispersive spectrometer. The physical and electrochemical performances of the composites were investigated by three-point bending test and linear sweep voltammetry. The results show that the lead-tin-iron composites with metallurgical-type interface can be prepared by diffusion sintering with pressing in vacuum. The polarization potential of the composites electrode is lower than that of Pb-1%Ag alloy electrode by 80 mV, the activity is eight times higher than that of Pb-1%Ag alloy, and the strength of the composites is higher than that of Pb-1%Ag alloy by 44.1%.