强激光与粒子束, 2006, 18 (11): 1908, 网络出版: 2007-05-22   

超短激光诱导金属薄膜后层裂的分子动力学模拟

Molecular dynamics simulation of ultrashort laser induced back-surface spallation in metallic film
作者单位
1 上海交通大学,微米/纳米加工技术国家级重点实验室、薄膜与微细技术教育部重点实验室,上海,200030
2 佳木斯大学,黑龙江,佳木斯,154007
摘要
采用结合双温模型的分子动力学方法详尽描述了应力约束区域内部金属薄膜后向层裂的动力学过程.与辐照表面在激光加热作用下机械稳定性受到强烈影响而发生的前向喷射不同,后向层裂是冷材料的断裂.分析了层裂机制,得出靶材是在卸载波及被反射的压力波的共同作用下发生层裂;探讨了激光诱导压力波的传播规律,预测了不同靶厚下的层裂厚度及其对层裂开始时间的影响.
Abstract
Using molecular dynamics methods combined with two-step radiation heating model, a complete microscopic description of the dynamic progresses involved in laser induced back-surface spallation in metallic film in stress confinement regime is provided. Different from the front-surface ejection with strongly affected mechanical stability of the front-surface by laser heating, the back-surface spallation is a disintegration of cold material. The mechanism of spallation is analyzed as a result of the interaction of the unloading wave and reflected stress wave. The propagation of laser-induced stress wave is also further investigated, and the influences of film thickness on spall thickness as well as the time when spallation begins are predicted.
参考文献

[1] Barbee T W,Seaman L,Crewdson R,et al.Dynamic fracture criteria for ductile and brittle metals[J].J Mater,1972,7:393-401.

[2] Johnson J N.Dynamic fracture and spallation in ductile solids[J].J Appl Phys,1981,52:2812-2825.

[3] Kanel G I,Razorenov S V,Bogatch A,et al.Spall fracture properties of aluminum and magnesium at high temperatures[J].J Appl Phys,1996,79:8310-8317.

[4] Zhidkov A G,Zhigilei L V,Sasaki A,et al.Short-laser-pulse driven emission of energetic ions into a solid target from a surface layer spalled by a laser prepulse[J].Appl Phys A,2001,73:741-747.

[5] Zhigilei L V,Leveugle E,Garrison B J,et al.Computer simulations of laser ablation of molecular substrates[J].Chem Rev,2003,103:321-348.

[6] Gilath I,Eilezer S.Brittle-to ductile transition in laser-induced spall at ultrahigh strain rate in 6061-T6 aluminum alloy[J].Appl Phys Lett,1988,52(15):1207-1209.

[7] Cottet F,Boustie M.Spallation studies in aluminum targets using shock waves induced by laser irradiation at various pulse duration[J].J Appl Phys,1989,66(9):4067-4073.

[8] Zhigilei L V,Garrison B J.Microscopic mechanisms of laser ablation of organic solids in the thermal and stress confinement irradiation regimes[J].J Appl Phys,2000,88:1281-1298.

[9] Zhigilei L V,Garrison B J.Computer simulation study of damage and ablation of submicron particles from short-pulse laser irradiation[J].Appl Surf Sci,1998,127-129:142-150.

[10] Zhidkov A G,Zhigilei L V,Sasaki A,et al.Short-laser-pulse-driven emission of energetic ions into a solid target from a surface layer spalled by a laser prepulse[J].Appl Phys A:Mater Sci Process,2001,73:741-747.

[11] Paltauf G,Schmidt-Kloiber H.Laser-induced micro bubble formation at a fiber tip in absorbing media:Experiments and theory[J].Appl Phys A,1996,62:303-311.

[12] Li Y C,Tan F L,Guo Y,et al.Determination of the damage evolution equation and spallation criterion of metals[J].Journal of Ningbo University (NSEE),2003,16(4):442-446.

[13] Rinehart J S.Some quantitative data bearing on the scabbing of metals by an explosive attack[J].J Appl Phys,1951,22:555-562.

[14] Whiteman P.Preliminary report on the effect of stress rate on the dynamic fracture in steel,brass and lauminium[R].AWRE SWAN-10/611,1962.

[15] Thurstan R S,Mudd W L.Spallation criterion for numerical computational data[R].LA-4013 TID-4500,1968.

[16] Tuler D R,Butcher B M.A criterion for the time-dependent of dynamic fracture[J].J Fra Mech,1968,4:431-440.

[17] Qiu T Q,Tien C L.Mass transfer in turbulent impinging slot jets[J].Journal of Heat Transfer,1993,835:115-124.

[18] Wellershoff S S,Hohlfeld J,Güdde J,et al.The role of electron-phonon coupling in femtosecond laser damage of metals[J].Appl Phys A:Mater Sci Process,1999,69:99-107.

[19] Antaki P J.Importance of nonequilibrium thermal conductivity during short-pulse laser-induced desorption from metals[J].Int Heat Mass Transfer,2002,45:4063-4067.

[20] Schmidt V,Husinsky W,Betz G.Ultrashort laser ablation of metals:pump-probe experiments,the role of ballistic electrons and two-temperature model[J].Appl Surf Sci,2002,197:145-155.

[21] Hakkinen H,Landman U.Superheating,melting,and annealing of copper surfaces[J].Phys Rev Lett,1993,71:1023-1026.

[22] Girifalco L A,Weizer V G.Application of the Morse potential function to cubic metals[J].Physical Review,1959,114:687-690.

[23] Liu X,Wang Y.Femtosecond laser ablation of metals:an molecular dynamics simulation study[J].Chinese Optics Letters,2005,3:57-59.

[24] Liu X,Wang Y.Molecular dynamics study on the mechanism of ultrashort laser ablation of metals[J].High Power Laser and Particle Beams,2005,17(4):500-504.(in Chinese)

[25] Zhigilei L V.Dynamics of the plume formation and parameters of the ejected clusters in short-pulse laser ablation[J].Appl Phys A,2003,76:339-350.

[26] Zhigilei L V,Leveugle E,Garrison B J,et al.Computer simulations of laser ablation of molecular substrates[J].Chem Rev,2003,103:321-348.

[27] Eleezer S,Gilath I.Laser-induced spall in metals:experiment and simulation[J].J Appl Phys,1990,67(2):715-724.

[28] Wang Y G,Boustie M,He H L,et al.Numerical simulation of damage evolution on mechanical behavior and tensile spallation of pure aluminium under laser shock loading[J].High Power Laser and Particle Beams,2005,17(9):1281-1285.(in Chinese)

[29] Wang Y G,Boustie M,He H L,et al.Experimental study on mechanical behavior and tensile spallation of pure aluminum under laser shock loading[J].High Power Laser and Particle Beams,2005,17(7):966-970.(in Chinese)

刘璇, 周伟民, 赵丽杰, 张亚非. 超短激光诱导金属薄膜后层裂的分子动力学模拟[J]. 强激光与粒子束, 2006, 18(11): 1908. 刘璇, 周伟民, 赵丽杰, 张亚非. Molecular dynamics simulation of ultrashort laser induced back-surface spallation in metallic film[J]. High Power Laser and Particle Beams, 2006, 18(11): 1908.

本文已被 2 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!