Selective single pulse femtosecond laser removal of alumina (Al2O3) from a bilayered Al2O3/TiAlN/steel coating
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Gaković, Biljana M.Radak, Bojan
Radu, C.
Zamfirescu, M.
Trtica, Milan
Petrović, Suzana
Stašić, Jelena
Panjan, Peter
Mihailescu, Ion N.
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We studied surface modification of a double layer protective coating on steel induced by single fs laser pulse irradiation in ambient air. The outer alumina (Al2O3) layer, which protects against aggressive environments, was 1.7 mu m thick and the titanium aluminum nitride (TiAlN) layer in contact with the steel surface had a thickness of 1.9 mu m. The pulses (lambda=775 nm, tau=200 fs) were generated by a Ti:sapphire laser source. The pulse energy was varied from 0.32 mu J to 50 mu J, corresponding to an incident laser fluence of 0.11 J cm(-2) to 16.47 J cm(-2). The surface damage threshold was found to be 0.20 J cm(-2) and the alumina layer removal was initiated at 0.56 J cm(-2). This selective ablation of alumina was possible in a wide range of fluences, up to the maximum applied, without ablating the TiAlN layer beneath. (C) 2012 Elsevier B.V. All rights reserved.
Keywords:
Hard coatings / Alumina (Al2O3) / Titanium aluminum nitride (TiAlN) / femtosecond laser ablation / Selective layer removalSource:
Surface and Coatings Technology, 2012, 206, 24, 5080-5084Funding / projects:
- Effects of laser radiation and plasma on novel materials in their synthesis, modification, and analysis (RS-MESTD-Basic Research (BR or ON)-172019)
- UEFSCDI [304/2011]
DOI: 10.1016/j.surfcoat.2012.06.021
ISSN: 0257-8972
WoS: 000307492500010
Scopus: 2-s2.0-84864125041
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VinčaTY - JOUR AU - Gaković, Biljana M. AU - Radak, Bojan AU - Radu, C. AU - Zamfirescu, M. AU - Trtica, Milan AU - Petrović, Suzana AU - Stašić, Jelena AU - Panjan, Peter AU - Mihailescu, Ion N. PY - 2012 UR - https://vinar.vin.bg.ac.rs/handle/123456789/4993 AB - We studied surface modification of a double layer protective coating on steel induced by single fs laser pulse irradiation in ambient air. The outer alumina (Al2O3) layer, which protects against aggressive environments, was 1.7 mu m thick and the titanium aluminum nitride (TiAlN) layer in contact with the steel surface had a thickness of 1.9 mu m. The pulses (lambda=775 nm, tau=200 fs) were generated by a Ti:sapphire laser source. The pulse energy was varied from 0.32 mu J to 50 mu J, corresponding to an incident laser fluence of 0.11 J cm(-2) to 16.47 J cm(-2). The surface damage threshold was found to be 0.20 J cm(-2) and the alumina layer removal was initiated at 0.56 J cm(-2). This selective ablation of alumina was possible in a wide range of fluences, up to the maximum applied, without ablating the TiAlN layer beneath. (C) 2012 Elsevier B.V. All rights reserved. T2 - Surface and Coatings Technology T1 - Selective single pulse femtosecond laser removal of alumina (Al2O3) from a bilayered Al2O3/TiAlN/steel coating VL - 206 IS - 24 SP - 5080 EP - 5084 DO - 10.1016/j.surfcoat.2012.06.021 ER -
@article{ author = "Gaković, Biljana M. and Radak, Bojan and Radu, C. and Zamfirescu, M. and Trtica, Milan and Petrović, Suzana and Stašić, Jelena and Panjan, Peter and Mihailescu, Ion N.", year = "2012", abstract = "We studied surface modification of a double layer protective coating on steel induced by single fs laser pulse irradiation in ambient air. The outer alumina (Al2O3) layer, which protects against aggressive environments, was 1.7 mu m thick and the titanium aluminum nitride (TiAlN) layer in contact with the steel surface had a thickness of 1.9 mu m. The pulses (lambda=775 nm, tau=200 fs) were generated by a Ti:sapphire laser source. The pulse energy was varied from 0.32 mu J to 50 mu J, corresponding to an incident laser fluence of 0.11 J cm(-2) to 16.47 J cm(-2). The surface damage threshold was found to be 0.20 J cm(-2) and the alumina layer removal was initiated at 0.56 J cm(-2). This selective ablation of alumina was possible in a wide range of fluences, up to the maximum applied, without ablating the TiAlN layer beneath. (C) 2012 Elsevier B.V. All rights reserved.", journal = "Surface and Coatings Technology", title = "Selective single pulse femtosecond laser removal of alumina (Al2O3) from a bilayered Al2O3/TiAlN/steel coating", volume = "206", number = "24", pages = "5080-5084", doi = "10.1016/j.surfcoat.2012.06.021" }
Gaković, B. M., Radak, B., Radu, C., Zamfirescu, M., Trtica, M., Petrović, S., Stašić, J., Panjan, P.,& Mihailescu, I. N.. (2012). Selective single pulse femtosecond laser removal of alumina (Al2O3) from a bilayered Al2O3/TiAlN/steel coating. in Surface and Coatings Technology, 206(24), 5080-5084. https://doi.org/10.1016/j.surfcoat.2012.06.021
Gaković BM, Radak B, Radu C, Zamfirescu M, Trtica M, Petrović S, Stašić J, Panjan P, Mihailescu IN. Selective single pulse femtosecond laser removal of alumina (Al2O3) from a bilayered Al2O3/TiAlN/steel coating. in Surface and Coatings Technology. 2012;206(24):5080-5084. doi:10.1016/j.surfcoat.2012.06.021 .
Gaković, Biljana M., Radak, Bojan, Radu, C., Zamfirescu, M., Trtica, Milan, Petrović, Suzana, Stašić, Jelena, Panjan, Peter, Mihailescu, Ion N., "Selective single pulse femtosecond laser removal of alumina (Al2O3) from a bilayered Al2O3/TiAlN/steel coating" in Surface and Coatings Technology, 206, no. 24 (2012):5080-5084, https://doi.org/10.1016/j.surfcoat.2012.06.021 . .