Repetitive laser pulse heating with a convective boundary condition at the surface
Journal of Physics D: Applied Physics, cilt.34, sa.2, ss.222-231, 2001 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 34 Sayı: 2
- Basım Tarihi: 2001
- Doi Numarası: 10.1088/0022-3727/34/2/311
- Dergi Adı: Journal of Physics D: Applied Physics
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.222-231
- İstanbul Ticaret Üniversitesi Adresli: Hayır
Özet
Repetitive laser pulses deposit sufficient energy to provide uniform-like heating at the surface of a substrate. This improves the surface properties of the substrate so treated. In the present study, an analytical solution for the temperature distribution due to repetitive laser pulse heating with a convective boundary condition at the surface is obtained. A Laplace transformation method is used when obtaining the analytical solution for the heat transfer equation. The effects of the pulse parameter (β/γ) and the Biot number (Bi) on the resulting temperature profiles for the possible attainment of a steady temperature at the surface during repetitive laser pulse heating is explored. The consecutive pulses with decreasing intensities are employed in the analysis while Bi is varied as 2×10-4≤Bi≤0.2. It is found that it is unlikely that the temperature profile follows the pulse profile. The effect of Bi on the temperature profiles resulted from the repetitive pulses becoming significant when Bi≥10-2.