Relationship between the results of laser-induced breakdown spectroscopy and dynamical mechanical analysis in composite solid propellants during their aging

2016 ◽  
Vol 55 (16) ◽  
pp. 4362 ◽  
Author(s):  
Amir Hossein Farhadian ◽  
Masoud Kavosh Tehrani ◽  
Mohammad Hossein Keshavarz ◽  
Mehran Karimi ◽  
Seyyed Mohammad Reza Darbani
Keyword(s):  
Mechanical Analysis ◽  
Laser Induced Breakdown Spectroscopy ◽  
Solid Propellants ◽  
Dynamical Mechanical Analysis ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Composite Solid Propellants ◽  
Composite Solid

Laser-induced-breakdown-spectroscopy-based detection of metal particles released into the air during combustion of solid propellants

2018 ◽  
Vol 57 (8) ◽  
pp. 1910 ◽  
Author(s):  
Morgan O’Neil ◽  
Nicholas A. Niemiec ◽  
Andrew R. Demko ◽  
Eric L. Petersen ◽  
Waruna D. Kulatilaka
Keyword(s):  
Metal Particles ◽  
Laser Induced Breakdown Spectroscopy ◽  
Solid Propellants ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

Nanosecond laser-induced breakdown assisted by femtosecond laser pre-ionization in air: the effect on spatial resolution and continuous radiation

2020 ◽  
Vol 92 (2) ◽  
pp. 20701
Author(s):  
Bo Li ◽  
Xiaofeng Li ◽  
Zhifeng Zhu ◽  
Qiang Gao
Keyword(s):  
Femtosecond Laser ◽  
Spatial Resolution ◽  
Laser Induced Breakdown Spectroscopy ◽  
Nanosecond Laser ◽  
Breakdown Threshold ◽  
Powerful Technique ◽  
Breakdown Spectroscopy ◽  
Continuous Radiation ◽  
Laser Induced Breakdown

Laser-induced breakdown spectroscopy (LIBS) is a powerful technique for quantitative diagnostics of gases. The spatial resolution of LIBS, however, is limited by the volume of plasma. Here femtosecond-nanosecond dual-pulsed LIBS was demonstrated. Using this method, the breakdown threshold was reduced by 80%, and decay of continuous radiation was shortened. In addition, the volume of the plasma was shrunk by 85% and hence, the spatial resolution of LIBS was significantly improved.

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