TY  - JOUR
AU  - Perusko, Davor
AU  - Kovac, J.
AU  - Petrović, S.
AU  - Obradović, M.
AU  - Mitrić, M.
AU  - Pavlović, Vladimir
AU  - Salatić, B.
AU  - Jaksa, G.
AU  - Ciganović, J.
AU  - Milosavljević, M.
PY  - 2017
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4497
AB  - Multilayers consisting of five (Al/Ti) bilayers were deposited on (100) silicon wafers. On top was deposited the Ti layer, aimed at preventing Al from diffusing to the surface upon laser treatment. The total thickness of the thin-film structure was 200 nm. Laser irradiations with Nd:YAG picoseconds laser pulses in the defocused regime were performed in air. Laser beam energy was 4 mJ and laser spot diameter on the sample surface was 3 mm (fluence 0.057 J cm(-2)). The samples were treated with different numbers of laser pulses. Structural characterizations were performed by different analytical methods and nano-hardness was also measured. Laser processing induced layer intermixing, formation of titanium aluminides, oxidation of the surface titanium layer and enhanced surface roughness. Aluminum appears at the sample surface only for the highest density of laser irradiation. Laser processing induces increment of nano-hardness by approximately 20% and decrease of residual Young's modulus for a few percentages from the starting value of the untreated samples. These results can be interesting toward achieving structures with a selective extent of Al-Ti reactivity in this multilayered system, within the development of biocompatible materials.
PB  - Taylor & Francis Inc, Philadelphia
T2  - Materials and Manufacturing Processes
T1  - Selective Al-Ti reactivity in laser-processed Al/Ti multilayers
EP  - 1627
IS  - 14
SP  - 1622
VL  - 32
DO  - 10.1080/10426914.2017.1279299
ER  - 

@article{
author = "Perusko, Davor and Kovac, J. and Petrović, S. and Obradović, M. and Mitrić, M. and Pavlović, Vladimir and Salatić, B. and Jaksa, G. and Ciganović, J. and Milosavljević, M.",
year = "2017",
abstract = "Multilayers consisting of five (Al/Ti) bilayers were deposited on (100) silicon wafers. On top was deposited the Ti layer, aimed at preventing Al from diffusing to the surface upon laser treatment. The total thickness of the thin-film structure was 200 nm. Laser irradiations with Nd:YAG picoseconds laser pulses in the defocused regime were performed in air. Laser beam energy was 4 mJ and laser spot diameter on the sample surface was 3 mm (fluence 0.057 J cm(-2)). The samples were treated with different numbers of laser pulses. Structural characterizations were performed by different analytical methods and nano-hardness was also measured. Laser processing induced layer intermixing, formation of titanium aluminides, oxidation of the surface titanium layer and enhanced surface roughness. Aluminum appears at the sample surface only for the highest density of laser irradiation. Laser processing induces increment of nano-hardness by approximately 20% and decrease of residual Young's modulus for a few percentages from the starting value of the untreated samples. These results can be interesting toward achieving structures with a selective extent of Al-Ti reactivity in this multilayered system, within the development of biocompatible materials.",
publisher = "Taylor & Francis Inc, Philadelphia",
journal = "Materials and Manufacturing Processes",
title = "Selective Al-Ti reactivity in laser-processed Al/Ti multilayers",
pages = "1627-1622",
number = "14",
volume = "32",
doi = "10.1080/10426914.2017.1279299"
}

Perusko, D., Kovac, J., Petrović, S., Obradović, M., Mitrić, M., Pavlović, V., Salatić, B., Jaksa, G., Ciganović, J.,& Milosavljević, M.. (2017). Selective Al-Ti reactivity in laser-processed Al/Ti multilayers. in Materials and Manufacturing Processes
Taylor & Francis Inc, Philadelphia., 32(14), 1622-1627.
https://doi.org/10.1080/10426914.2017.1279299

Perusko D, Kovac J, Petrović S, Obradović M, Mitrić M, Pavlović V, Salatić B, Jaksa G, Ciganović J, Milosavljević M. Selective Al-Ti reactivity in laser-processed Al/Ti multilayers. in Materials and Manufacturing Processes. 2017;32(14):1622-1627.
doi:10.1080/10426914.2017.1279299 .

Perusko, Davor, Kovac, J., Petrović, S., Obradović, M., Mitrić, M., Pavlović, Vladimir, Salatić, B., Jaksa, G., Ciganović, J., Milosavljević, M., "Selective Al-Ti reactivity in laser-processed Al/Ti multilayers" in Materials and Manufacturing Processes, 32, no. 14 (2017):1622-1627,
https://doi.org/10.1080/10426914.2017.1279299 . .