Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/72968
Title: Theoretical model for steam laser cleaning
Authors: Lu, Y.F. 
Zhang, Y.
Song, W.D. 
Low, T.S. 
Issue Date: 1998
Source: Lu, Y.F.,Zhang, Y.,Song, W.D.,Low, T.S. (1998). Theoretical model for steam laser cleaning. Materials Research Society Symposium - Proceedings 526 : 409-414. ScholarBank@NUS Repository.
Abstract: A theoretical model for removal of tiny particles from solid surface covered with a thin liquid film by laser cleaning is established by taking adhesion force and cleaning force into account. When pulsed laser irradiates on the solid surface coated with a thin liquid film, a sheet of liquid near the liquid/substrate interface can be superheated through thermal diffusion. The rapid growth of vapor bubbles inside the superheated liquid can generate transient stress wave with high pressure, large enough to expel micron and sub-micron particles from the contaminated surface. By calculating the adhesion force and cleaning force, the cleaning threshold of laser fluence can be predicted from this theoretical model. The difference between cleaning force and adhesion force increases quickly along with the laser fluence and leads to higher cleaning efficiency.
Source Title: Materials Research Society Symposium - Proceedings
URI: http://scholarbank.nus.edu.sg/handle/10635/72968
ISSN: 02729172
Appears in Collections:Staff Publications

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