Dynamics of laser-induced shock wave and cavitation during laser ablation of aliphatic nitroalkanes

被引：0

作者：

Zhao, Y. L. ^{[1
]}

Yin, H. L. ^{[1
]}

Shi, J. C. ^{[2
]}

Luo, S. N. ^{[1
]}

机构：

[1] Southwest Jiaotong Univ, Sch Mat Sci & Engn, Chengdu, Sichuan, Peoples R China

[2] Peac Inst Multiscale Sci, Chengdu, Sichuan, Peoples R China

来源：

OPTICS AND LASERS IN ENGINEERING | 2023年 / 165卷

关键词：

Laser-induced breakdown; Schlieren imaging; Shock wave; Cavitation bubble; Oxygen balance; INDUCED BREAKDOWN SPECTROSCOPY; ENERGETIC MATERIALS; NANOSECOND LIBS; BUBBLE DYNAMICS; IGNITION; ISOMERS; SOUND; NANOPARTICLES; FEMTOSECOND; TEMPERATURE;

D O I：

10.1016/j.optlaseng.2023.107548

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Nanosecond time-resolved schlieren imaging is performed to investigate laser-induced breakdown in ni-tromethane, nitroethane and 1-nitropropane, and the associated dynamics of laser-induced shock waves and cavitation bubbles. The exothermic reactions upon decomposition and the chemical reactions in the vapor plume behind the shock front increase the shock wave velocity. The correlations of oxygen balance with shock wave velocity, bubble radius, lifetime and bubble energy are established. For instance, shock wave velocity is propor-tional to the negative inverse of oxygen balance. In addition, the bubble energy of nitroethane tends to saturate at high pulse energy.

引用

页数：7

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