TY - JOUR
T1 - An improved three-dimensional model for growth of oxide films induced by laser heating
AU - Jiménez Pérez, J. L.
AU - Sakanaka, P. H.
AU - Algatti, M. A.
AU - Mendoza-Alvarez, J. G.
AU - Cruz Orea, A.
N1 - Funding Information:
The authors would like to thank CNPq and FAPESP for the financial support. J.L.J.P. would like to thank CONACYT for the Ph.D. scholarship.
PY - 2001/5/15
Y1 - 2001/5/15
N2 - In this paper we consider a three-dimensional heat diffusion model to explain the growth of oxide films which takes place when a laser beam is shined on and heats a metallic layer deposited on a glass substrate in a normal atmospheric environment. In particular, we apply this model to the experimental results obtained for the dependence of the oxide layer thickness on the laser density power for growth of TiO 2 films grown on Ti-covered glass slides. We show that there is a very good agreement between the experimental results and the theoretical predictions from our proposed three-dimensional model, improving the results obtained with the one-dimensional heat diffusion model previously reported. Our theoretical results also show the occurrence of surface cooling between consecutive laser pulses, and that the oxide track surface profile closely follows the spatial laser profile indicating that heat diffusive effects can be neglected in the growth of oxide films by laser heating.
AB - In this paper we consider a three-dimensional heat diffusion model to explain the growth of oxide films which takes place when a laser beam is shined on and heats a metallic layer deposited on a glass substrate in a normal atmospheric environment. In particular, we apply this model to the experimental results obtained for the dependence of the oxide layer thickness on the laser density power for growth of TiO 2 films grown on Ti-covered glass slides. We show that there is a very good agreement between the experimental results and the theoretical predictions from our proposed three-dimensional model, improving the results obtained with the one-dimensional heat diffusion model previously reported. Our theoretical results also show the occurrence of surface cooling between consecutive laser pulses, and that the oxide track surface profile closely follows the spatial laser profile indicating that heat diffusive effects can be neglected in the growth of oxide films by laser heating.
KW - Laser induced oxidation
KW - Laser materials processing
KW - Thin oxide films
UR - http://www.scopus.com/inward/record.url?scp=0035873359&partnerID=8YFLogxK
U2 - 10.1016/S0169-4332(01)00143-X
DO - 10.1016/S0169-4332(01)00143-X
M3 - Artículo
SN - 0169-4332
VL - 175-176
SP - 703
EP - 708
JO - Applied Surface Science
JF - Applied Surface Science
ER -