Evaluation of laser beam interaction with carbon based material - glassy carbon

Abstract

Article Highlights• Interaction of glassy carbon with Nd 3+ :YAG laser beam of various energy densities were investigated • Damage morphology analysis has shown that damage morphology depends on the energy density • The Image analysis have applied for obtaining quantitative description of the damage topology • Numerical simulation of glassy carbon interaction with laser was performed by COMSOL Multiphysics • Numerical simulation was based on thermal model and FEM method Abstract Laser beam interaction with carbon based material (glassy carbon) is analyzed in this paper. A Nd 3+ :YAG laser beam (1.06 μm, i.e., near infrared range (NIR)) in ms regime with various energy densities is used. In all experiments, provided in applied working regimes, surface damages have occurred. The results of laser damages are analyzed by light and scanning electron microscopy (SEM). Image J software is used for quantitative analysis of generated damages based on micrographs obtained by light and SEM microscopes. Temperature distribution in the exposed samples is evaluated by numerical simulations based on COMSOL Multiphysics 3.5 software in a limited energy range.Keywords: laser, interaction, glassy carbon based material, quantitative analysis, numerical simulation.Carbon based modern materials in practice can be found in a number of types [1]. Various arrangements of microstructure domains, ordered and disordered, are produced in commercial or laboratory samples, leading to design of carbon materials of different characteristics. The new technological processes make possibility for designing and producing materials with desired mechanical, thermal, electrical, and other properties [2,3]. Laser interaction with well-known graphite -and diamond-like materials remains an unresolved issue. Recently, carbon active materials, carbon nanotubes, 60 C and carbon composites, have been attracting attention. Fabrics and generally fiberCorrespondence: P. Jovanić,

Laser beam drilling and cutting of PMMA

“…Laser methods of PMMA treatment are considered in numerous articles from various points of view: simulations, experiments with different types of laser devices, industrial applications, material processing for optical components, cutting and shaping of panels, tropheys, fiber applications, etc. [3][4][5][6][7][8][9][10][19][20][21][22][23][24][25][26][27]. The part of the theory used in these descriptions is applicable also for the other transparent materials, composites, glassy and plastic materials.…”

Monitoring of a ceramic surface temperature field induced by pulsed Nd:YAG laser

“…Numerical methods are a very useful tool in engineering [20][21][22]. In this research, numerical simulations were used together with thermography to determine the temperature field induced by laser irradiation on the surface of a ceramic tile.…”