主要模拟了脉冲微孔喷射法(POEM)制备均一微粒子过程中液滴振动行为以及材料物性值(如粘度、表面张力等)对振动的影响.通过比较不同粒径液滴的振动时间和开始凝固时间,揭示不同气氛下获得高圆球度微粒子的规律.结果表明最初产生的液滴存在振动现象,随着振动的减弱液滴逐渐振动为球形；当表面张力增加时,液滴的振动频率增加,振动时间减小；粘度增加时,振动频率几乎不变,但振动时间显著减小；对于熔点较低的材料,适合选用Ar作为冷却气体；制备的粒子粒径越小,越容易获得较高的圆球度.
参考文献
| [1] | 董伟,李颖,付一凡,谭毅.均一球形微米级粒子制备技术的研究进展[J].材料工程,2012(09):92-98. |
| [2] | W. Dong;S. Masuda;K. Takagi;A. Kawasaki .The Development of Mono-sized Micro Silicon Particles for Spherical Solar Cells by Pulsated Orifice Ejection Method[J].Materials Science Forum,2007(26):149-152. |
| [3] | Satoshi Masuda;Kenta Takagi;Wei Dong;Kenta Yamanaka;Akira Kawasaki .Solidification behavior of falling germanium droplets produced by pulsated orifice ejection method[J].Journal of Crystal Growth,2008(11):2915-2922. |
| [4] | Xiaotao Dong;Charles D. Tuffile;Teiichi Ando .Continuous-cooling-transformation curves for heterogeneous nucleation on the surface of Sn-5 mass-% Pb droplets[J].Advanced Engineering Materials,2000(5):284-289. |
| [5] | Fu Yifan;Dong Wei;Li Ying.Research of proparing micro mono-sized metal particles by pulsed orifice ejection method[A].Changsha:Professional Committee of China Institute of Welding the Brazing and Special Cormection,2012:383-387. |
| [6] | Ayako Miura;Wei Dong;Masahiro Fukue .Preparation of Fe-based monodisperse spherical particles with fully glassy phase[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2011(18):5581-5586. |
| [7] | 李颖,董伟,三浦彩子,谭毅,川崎亮.球形铁基金属玻璃单分散粒子的制备及评价[J].无机材料学报,2012(08):849-854. |
| [8] | Li Ying;Dong Wei;Fu Yifan et al.The critical cooling rate of Fe-based mono-sized spherical particles with fully glassy phase[J].Current Advances in Materials and Processes,2012,509:185-191. |
| [9] | 韩雅芳,戴圣龙,杨守杰,李树索.均匀液滴喷射沉积模拟研究[J].航空制造技术,2003(07):25-27,45. |
| [10] | Li Shu;Wu Ping;Zhou Wei et al.Kinetics of heterogeneous nucleation of gas-atomized Sn-5wt%Pb droplets[J].Materials Science and Engineering A,2008,473(1-2):206-212. |
| [11] | 刘海霞,雷永平,夏志东,韩飞.切丝重熔法制备的BGA焊球及其表面形貌[J].电子元件与材料,2005(05):21-23. |
| [12] | Shengdong GAO,Yingxue YAO,Chengsong CUI.Vibrating Breakup of Jet for Uniform Metal Droplets[J].材料科学技术学报（英文版）,2007(01):135-138. |
| [13] | Kenta Takagi;Satoshi Masuda;Hiroaki Suzuki .Preparation of Monosized Copper Micro Particles by Pulsated Orifice Ejection Method[J].Materials transactions,2006(5):1380-1385. |
| [14] | Fu Yifan;Dong Wei;Li Ying et al.Simulation of the effects of the physical properites on praticle formation of pulsated orifice ejection method(POEM)[J].Current Advances in Materials and Processes,2012,509:1661-1665. |
| [15] | Bird R B;Stewart W E;Lightfoot E N.Transport phenomena (second edition)[M].New York:John Wiley and Sons,Inc,2002:84-85. |
| [16] | Hirt C W;Nichols B D .Volume of fluid (VOF) method for the dynamics of free boundaries[J].Journal of Computational Physics,1981,39(01):201-225. |
| [17] | Zhu Jialin;Yu Xiquan;Dai Zhensheng .Aharonov-bohm oscillation modes in double-barrier nanorings[J].Physical Review B,2003,67:075404. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%