Correlation between particle removal and shock-wave dynamics in the laser shock cleaning process

• DOI: 10.1063/1.1857056
• Publication Date: 2005-02-04T23:04:46Z
• Authors: Hyunkyu Lim; Deoksuk Jang; Dongsik Kim; Jin Won Lee; Jong-Myoung Lee
• Keywords: Particle (ecology)

It has been shown that the laser shock cleaning (LSC) method is effective for eliminating micron- and submicron-scale particulates from solid surfaces. In LSC process, a high-power pulse induces optical breakdown of ambient gas close to surface be cleaned subsequently-created wave followed by high-speed flow stream detaches particles. Therefore, there should strong correlation between dynamics performance. this work, experimental analyses are conducted measure performance using micron-sized alumina particles attached silicon surface. The data showing particle-removal compared with results laser-induced waves, leading simple model particle removal scheme in continuum-flow regime.