射流速度对点阳极电沉积二维镍枝晶分形生长影响的数值模拟
Numerical Simulation of Effect of Jetting Speed on 2-D Ni Dendrite Fractal Growth in Jet-electrodeposition with Point Anode
摘 要
基于有限扩散凝聚模型(DLA)建立了圆形电解池点阳极喷射电沉积枝晶分形生长的模型,模拟射流速度对点阳极电沉积二维镍枝晶分形生长的影响;采用圆形电解池点阳极射流电沉积方法制备了不同射流速度下的金属镍枝晶簇,并与模拟结果进行了对比.结果表明:模拟结果与试验结果具有一定的相似性;随着射流速度的增加,沉积产物金属镍枝晶的形貌均逐渐致密,因此利用此模型模拟射流速度对点阳极电沉积枝晶分形生长的影响是可行的;气泡对镍枝晶的生长行为具有显著影响.
喷射电沉积
分形生长
点阳极
射流速度
Ni dendrite
jet-electrodeposition
fractal growth
point anode
jetting speed
Abstract
Based on diffusion-limited aggregation model (DLA),the growth model of quasi-two-dimensional electrodeposition with point anode was successfully built to simulate the two-dimensional dendrite growth of Ni at different jetting speeds in jet-electrodeposition.Metal Ni dendrite clusters were prepared by using jet-electrodeposition with round electrolytic cell point anode method at different jetting speeds,and they were compared with the simulation results.The results indicate that the stimulation value was similar to the test result.With the jetting speed increasing,the deposited product morphology became compact gradually,indicating that using the DLA model was feasible to simulate the effect of jetting speed on 2-D Ni dendrite fractal growth in electrodeposition with point anode.The bubble had a great influence on dendrite growth behavior.
中图分类号 TG623
所属栏目 试验研究
基金项目 国家自然科学基金资助项目(50575104)
收稿日期 2008/10/29
修改稿日期 2009/7/6
网络出版日期
作者单位点击查看
备注宫凯(1976-),男,辽宁沈阳人,博士研究生.
引用该论文: GONG Kai,HUANG Yin-hui,WANG Gui-feng,TIAN Zong-jun,LIU Zhi-dong. Numerical Simulation of Effect of Jetting Speed on 2-D Ni Dendrite Fractal Growth in Jet-electrodeposition with Point Anode[J]. Materials for mechancial engineering, 2009, 33(11): 27～30
宫凯,黄因慧,王桂峰,田宗军,刘志东. 射流速度对点阳极电沉积二维镍枝晶分形生长影响的数值模拟[J]. 机械工程材料, 2009, 33(11): 27～30
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【3】WITTEN T A,SANDER L M.Effective harmonic-fluid a-pproach to low-energy properties of one-dimensional quantum fluids[J].Phys Rev Let,1981,47(25):1400-1408.
【4】MATSUSHITA M,SANO M,HAYAKAWA Y,et al.Fractal structures of zinc metal leaves grown by electro-deposition[J].Phys Rev Lett,1984,53(3):286-289.
【5】SAWADA Y,DOUGHERTY A,GOLLUB J P.Dendritic and fractal patterns in electrolytic metal deposits[J].Phys Rev Lett,1986,56(12):1260-1263.
【6】孙斌,任大志,邹宪武,等.铅的电沉积枝晶生长[J].武汉大学学报:理学版,2002,48(1):81-83.
【7】GRIER D,BEN-JACOB E,CLARKE R,et al.Morphology and microstructure in electrochemical deposition of zinc[J].Phys Rev Lett,1986,56(12):1264-1267.
【8】王桂峰,黄因慧,田宗军,等.平行板电极喷射电沉积中的枝晶分形生长[J].华南理工大学学报:自然科学版,2008,36(4):35-39.
【9】杨兵初,戎茂华,罗成林.锌电解沉积物生长形态转变的研究[J].长沙理工大学学报:自然科学版,2005,2(3):85-88.
【10】谢刚,张郑,陈书荣,等.点阴极下金属电沉积过程枝晶二维生长的计算机模拟[J].科学技术与工程,2003(4):343-346.
【11】张皓东,谢刚,李荣兴,等.金属锌电沉积过程的分形研究[J].化学研究,2005,16(1):52-54.
【12】王桂峰,黄因慧,田宗军,等.不同条件下金属镍电沉积中枝晶生长的分形维数[J].机械工程材料,2008,32(8):16-19.
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