脉冲敲击技术对PI微球表面粗糙度的影响

曹洪; 黄勇; 陈素芬; 张占文; 韦建军

doi:10.7498/aps.62.196801

摘要

作为点火靶重要候选靶丸之一, 聚酰亚胺 (PI) 空心微球采用降解芯轴技术结合双单体气相沉积聚合法 (VDP) 制备. 在PI涂层过程中微球碰撞对表面质量影响较大, 为了减小碰撞提高表面质量, 选用筛网盘做样品盘, 激励方式由压电振动模式改为脉冲敲击模式进行对比. 实验数据表明微球运动过程中碰撞是引起表面质量变差的原因, 通过理论分析确认了筛网盘通过减少接触点可以减少微球与微球间、微球与样品盘间的碰撞, 并且将压电振动改为脉冲敲击模式可以减小微球碰撞次数. 脉冲敲击模式与压电振动模式相比, 其可控性、微球弹跳幅度、消除静电等方面均优于压电振动. 对于微球壁厚均匀性而言, 压电振动略好于脉冲敲击, 但相差较小. 单个微球的壁厚最大偏差前者为0.68 m, 优于后者的0.73 m; 单个微球壁厚平均值在同一批次内的最大起伏, 前者为0.26 m, 优于后者0.57 m. 白光干涉仪数据显示脉冲敲击起到了提高微球表面质量的作用, 其表面粗糙度Rq值由5293 nm 减小到2844 nm.

关键词:

Abstract

As one of the most important ignition capsules, the polyimide capsule was prepared by depolymerizable mandrels technique combined with vapor deposition polymerization method. Instead of the plane pan and piezoelectric vibration model, the mesh pan and pulse tapping was selected to reduce microsphere collision so that surface quality was improved in polyimide fabrication. Experimentsal and theoretical results show that the capsule surface becomes more rough because of collisions between microspheres and the pan. The mesh pan could reduce microsphere collisions, which was also reduced by changing piezoelectric vibration into pulse tapping. As a result, root-mean-square value ranges from 5293 nm to 2844 nm. There are many advantages with pulse tapping model, such as better controllability,lower bounce rate and less static; however piezoelectric vibration model is slightly better than the pulse taping in wall thickness uniformity. Measurements of single microsphere show that the deviation of the former is 0.68 which is better than that of the latter (0.73 m). For the average value of microspheres in the same batch, the former has a value 0.26 which also is better than the latter (0.57 m).

Keywords:

作者及机构信息

1.
中国工程物理研究院, 激光聚变研究中心, 绵阳 621900;

2.
四川大学原子与分子物理研究所, 成都 610065

Authors and contacts

1.
Research Centre of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China;

2.
Institute of Atomic and Molecuar Physics, Sichuan University, Chengdu 610065, China

参考文献

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[5]	Jordan A, Forbes P, Mark H, Jeff G, Bobby W 2006 Fusion Science and Technology 49 832
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[13]	Zhang B L, He Z B, Wu W D, Liu X H, Yang X D, Ma X J, Yang M S, Lin H P 2008 High Power Laser and Particle Beam 20 1109 (in Chinese) [张宝铃, 何智兵, 吴卫东, 刘兴华, 杨向东, 马小军, 杨蒙生, 林华平 2008 强激光与粒子束 20 1109]
[14]	Letts S A, Anthamatten M, Buckley S R 2004 Fusion technology 45 180
[15]	Liang T, Makita Y, Kimura S 2001 Polymer 42 4867
[16]	Chen K C, Nikroo A 2006 Fusion science technology 49 721
[17]	Wang J F, Su W B, Wang C M, Gai Z G 2011 Piezoelectric Vibration theory and application (Vol. 1) (Beijing: Science Press) p78 (in Chinese) [张矜奉, 苏文斌, 王春明, 盖志刚 2011 压电振动理论与应用 (第一版) (北京: 科学出版社) 第78页]
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[19]	Tsai F Y, Harding D R, Chen S H 2002 Fusion technology 60 178
[20]	Zhao X S, Gao D Z, Ma X J, Tang Y J, Zhang L, Sun T, Dong S 2012 Atomic Energy Science and Technology 46 447 (in Chinese) [赵学森, 高党忠, 马小军, 唐永建, 张林, 孙涛, 董申 2012 原子能与科学技术 46 447]

施引文献

[1]	Tsai F Y, Harding D R, Chen S H, Blanton T N 2003 Polymer 44 995
[2]	Yan J C, He Z B, Yang Z L, Zhang Y, Tang Y J, Wei J J 2011 Acta Phys. Sin. 60 036501 (in Chinese) [闫建成, 何智兵, 阳志林, 张颖, 唐永健, 韦建军 2011 物理学报 60 036501]
[3]	Zhang Y, He Z B, Li P, Yan J C 2011 Acta Phys. Sin. 60 126501 (in Chinese) [张颖, 何智兵, 李萍, 闫建成 2011 物理学报 60 126501]
[4]	Yan J C, He Z B, Yang Z L, Chen Z M, Tang Y J, Wei J J 2010 Acta Phys. Sin. 59 3290 (in Chinese) [闫建成, 何智兵, 阳志林, 陈志梅, 唐永健, 韦建军 2010 物理学报 59 3290]
[5]	Jordan A, Forbes P, Mark H, Jeff G, Bobby W 2006 Fusion Science and Technology 49 832
[6]	Alfonso E L, Chen S H, Gram R Q 1998 Fusion technology 13 2988
[7]	Liu J G, Yang S Y 2006 Chinese Journal of Nuclear Science and Engineering 26 276 (in Chinese) [刘金刚, 杨士勇 2006 核科学与工程 26 276]
[8]	Yao H, Zhang Z W, Huang Y, Li S, Wang G X 2011 Surface Technology 6 53 (in Chinese) [姚洪, 张占文, 黄勇, 李赛, 汪国秀 2011 表面技术 6 53]
[9]	Huang Y, Li B, Zhang Z W, Bai H, Chu Q M, Ma X J, Wei S, Shi T 2008 High Power Laser and Particle Beam 20 1125 (in Chinese) [黄勇, 李波, 张占文, 白宏, 初巧妹, 马小军, 魏胜, 师涛 2008 强激光与粒子束 20 1125]
[10]	Huang Y, Zhang Z W, Liu Y Y, Li B, Chen S F, Qi X B 2011 High Power Laser and Particle Beam 23 1527 (in Chinese) [黄勇, 张占文, 刘一扬, 李波, 陈素芬, 漆小波 2011 强激光与粒子束 23 1527]
[11]	Zhang Z W, Qi X B, Li B 2012 Acta Phys. Sin. 61 145204 (in Chinese) [张占文, 漆小波, 李波 2012 物理学报 61 145204]
[12]	Yao H, Zhang Z W, Huang Y, Li S, Li B 2011 High Power Laser and Particle Beam 7 1861 (in Chinese) [姚洪, 张占文, 黄勇, 李赛, 李波 2011 强激光与粒子束 7 1861]
[13]	Zhang B L, He Z B, Wu W D, Liu X H, Yang X D, Ma X J, Yang M S, Lin H P 2008 High Power Laser and Particle Beam 20 1109 (in Chinese) [张宝铃, 何智兵, 吴卫东, 刘兴华, 杨向东, 马小军, 杨蒙生, 林华平 2008 强激光与粒子束 20 1109]
[14]	Letts S A, Anthamatten M, Buckley S R 2004 Fusion technology 45 180
[15]	Liang T, Makita Y, Kimura S 2001 Polymer 42 4867
[16]	Chen K C, Nikroo A 2006 Fusion science technology 49 721
[17]	Wang J F, Su W B, Wang C M, Gai Z G 2011 Piezoelectric Vibration theory and application (Vol. 1) (Beijing: Science Press) p78 (in Chinese) [张矜奉, 苏文斌, 王春明, 盖志刚 2011 压电振动理论与应用 (第一版) (北京: 科学出版社) 第78页]
[18]	Qin Y H 1999 Heat (Vol. 2) (Beijing: Higher Education Press) p131 (in Chinese) [秦允豪 1999 热学 (第二版) (北京: 高等教育出版社) 第131页]
[19]	Tsai F Y, Harding D R, Chen S H 2002 Fusion technology 60 178
[20]	Zhao X S, Gao D Z, Ma X J, Tang Y J, Zhang L, Sun T, Dong S 2012 Atomic Energy Science and Technology 46 447 (in Chinese) [赵学森, 高党忠, 马小军, 唐永建, 张林, 孙涛, 董申 2012 原子能与科学技术 46 447]

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