摘要
将分形几何与电化学原理相结合,编程模拟了点阴极和点阳极电沉积中枝晶的分形生长。采用圆形电解池点阴极电沉积和点阳极射流电沉积的方法分别制备了不同温度下的金属镍枝晶,并与模拟结果相比较。结果表明:点阴极电沉积和点阳极射流电沉积中的枝晶均是分形生长的,温度的变化对枝晶生长形态的影响与模拟的结果具有极好的相似性。模拟的结果是可以对点阴极和点阳极电沉积中枝晶的生长机理进行正确表述的,同时发现,气泡对枝晶的生长形貌影响显著。
With the combination of fractal and electrodeposition, fractal growth processes of dendrite with point cathode and point anode were successfully simulated. Two-dimensional dendrites of Ni were manufactured under various temperatures by electrodeposition with point cathode and jet-electrodeposition with point anode in a ringshaped electrolysis tank, and all results of experiments were compared with the simulation results. Comparison shows that dendrites of Ni obtained by electrodeposition with point cathode and those by jet-electrodeposition with point anode all have the character of fractal. Dendrites obtained under various temperatures of electrolyte are similar to the results of simulation. The simulated results can make a correct description of dendrite fractal growth. The research also shows that the bubble has great influence on dendrite growth.
出处
《机械科学与技术》
CSCD
北大核心
2009年第10期1303-1307,共5页
Mechanical Science and Technology for Aerospace Engineering
基金
国家自然科学基金项目(50575104)资助
关键词
镍
射流电沉积
分形
枝晶
Ni
jet-electrodeposition
fractal
dendrite
