Laser-induced surface alloying in nanosized Ni/Ti multilayer structures
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2013
Authors
Petrović, SuzanaRadak, Bojan
Peruško, Davor
Pelicon, P.
Kovač, Janez
Mitrić, Miodrag
Gaković, Biljana M.
Trtica, Milan
Article (Published version)
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Laser-induced alloying effects on the composition and structure of different Ni/Ti multilayer structures were studied. Thin films composed of one, five, and ten (Ni/Ti) bilayers were deposited by DC ion sputtering on (1 0 0) Si wafers. Laser irradiations were performed by 150 ps pulses of a Nd:YAG laser operating at 1064 nm. The samples were characterized by Rutherford backscattering spectrometry (RBS), Auger electron spectroscopy (AES), X-ray diffraction (XRD), atomic force microscopy (AFM) and scanning electron microscopy (SEM). At a laser fluence of 0.9 J cm(-2), interaction between Ni and Ti layers was initiated, and NiTi alloy formed in 5- and 10-bilayered samples. Progressed alloying was achieved at a laser fluence of 1.2 J cm(-2). The alloy was formed mostly within the heat affected zone (HAZ) of the sample. Surface segregation of titanium was followed by formation of a 25 nm thin TiO2 film on the surface of the multilayered structures. In addition, parallel periodic surface str...uctures on the surfaces of the 5- and 10-bilayered samples were clearly recorded. Their period in the case of the 5-bilayered system (0.77 mu m) agrees very well with the predictions of the common theory, whereas, in the case of the 10-bilayered system, two periods of such structures are observed (1.43 mu m and 0.4 mu m), and none of them coincides with the prediction. (C) 2012 Elsevier B. V. All rights reserved.
Keywords:
Ni/Ti multilayer / Laser alloying / Diffusion / Surface segregation / Ripple structureSource:
Applied Surface Science, 2013, 264, 273-279Funding / projects:
- SPIRIT - Support of Public and Industrial Research using Ion Beam Technology (EU-FP7-227012)
- Effects of laser radiation and plasma on novel materials in their synthesis, modification, and analysis (RS-MESTD-Basic Research (BR or ON)-172019)
- COST Action [MP0903 Nanoalloy], Center for Multidisciplinary Studies, Serbia
DOI: 10.1016/j.apsusc.2012.10.012
ISSN: 0169-4332
WoS: 000312004800044
Scopus: 2-s2.0-84870566536
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VinčaTY - JOUR AU - Petrović, Suzana AU - Radak, Bojan AU - Peruško, Davor AU - Pelicon, P. AU - Kovač, Janez AU - Mitrić, Miodrag AU - Gaković, Biljana M. AU - Trtica, Milan PY - 2013 UR - https://vinar.vin.bg.ac.rs/handle/123456789/5187 AB - Laser-induced alloying effects on the composition and structure of different Ni/Ti multilayer structures were studied. Thin films composed of one, five, and ten (Ni/Ti) bilayers were deposited by DC ion sputtering on (1 0 0) Si wafers. Laser irradiations were performed by 150 ps pulses of a Nd:YAG laser operating at 1064 nm. The samples were characterized by Rutherford backscattering spectrometry (RBS), Auger electron spectroscopy (AES), X-ray diffraction (XRD), atomic force microscopy (AFM) and scanning electron microscopy (SEM). At a laser fluence of 0.9 J cm(-2), interaction between Ni and Ti layers was initiated, and NiTi alloy formed in 5- and 10-bilayered samples. Progressed alloying was achieved at a laser fluence of 1.2 J cm(-2). The alloy was formed mostly within the heat affected zone (HAZ) of the sample. Surface segregation of titanium was followed by formation of a 25 nm thin TiO2 film on the surface of the multilayered structures. In addition, parallel periodic surface structures on the surfaces of the 5- and 10-bilayered samples were clearly recorded. Their period in the case of the 5-bilayered system (0.77 mu m) agrees very well with the predictions of the common theory, whereas, in the case of the 10-bilayered system, two periods of such structures are observed (1.43 mu m and 0.4 mu m), and none of them coincides with the prediction. (C) 2012 Elsevier B. V. All rights reserved. T2 - Applied Surface Science T1 - Laser-induced surface alloying in nanosized Ni/Ti multilayer structures VL - 264 SP - 273 EP - 279 DO - 10.1016/j.apsusc.2012.10.012 ER -
@article{ author = "Petrović, Suzana and Radak, Bojan and Peruško, Davor and Pelicon, P. and Kovač, Janez and Mitrić, Miodrag and Gaković, Biljana M. and Trtica, Milan", year = "2013", abstract = "Laser-induced alloying effects on the composition and structure of different Ni/Ti multilayer structures were studied. Thin films composed of one, five, and ten (Ni/Ti) bilayers were deposited by DC ion sputtering on (1 0 0) Si wafers. Laser irradiations were performed by 150 ps pulses of a Nd:YAG laser operating at 1064 nm. The samples were characterized by Rutherford backscattering spectrometry (RBS), Auger electron spectroscopy (AES), X-ray diffraction (XRD), atomic force microscopy (AFM) and scanning electron microscopy (SEM). At a laser fluence of 0.9 J cm(-2), interaction between Ni and Ti layers was initiated, and NiTi alloy formed in 5- and 10-bilayered samples. Progressed alloying was achieved at a laser fluence of 1.2 J cm(-2). The alloy was formed mostly within the heat affected zone (HAZ) of the sample. Surface segregation of titanium was followed by formation of a 25 nm thin TiO2 film on the surface of the multilayered structures. In addition, parallel periodic surface structures on the surfaces of the 5- and 10-bilayered samples were clearly recorded. Their period in the case of the 5-bilayered system (0.77 mu m) agrees very well with the predictions of the common theory, whereas, in the case of the 10-bilayered system, two periods of such structures are observed (1.43 mu m and 0.4 mu m), and none of them coincides with the prediction. (C) 2012 Elsevier B. V. All rights reserved.", journal = "Applied Surface Science", title = "Laser-induced surface alloying in nanosized Ni/Ti multilayer structures", volume = "264", pages = "273-279", doi = "10.1016/j.apsusc.2012.10.012" }
Petrović, S., Radak, B., Peruško, D., Pelicon, P., Kovač, J., Mitrić, M., Gaković, B. M.,& Trtica, M.. (2013). Laser-induced surface alloying in nanosized Ni/Ti multilayer structures. in Applied Surface Science, 264, 273-279. https://doi.org/10.1016/j.apsusc.2012.10.012
Petrović S, Radak B, Peruško D, Pelicon P, Kovač J, Mitrić M, Gaković BM, Trtica M. Laser-induced surface alloying in nanosized Ni/Ti multilayer structures. in Applied Surface Science. 2013;264:273-279. doi:10.1016/j.apsusc.2012.10.012 .
Petrović, Suzana, Radak, Bojan, Peruško, Davor, Pelicon, P., Kovač, Janez, Mitrić, Miodrag, Gaković, Biljana M., Trtica, Milan, "Laser-induced surface alloying in nanosized Ni/Ti multilayer structures" in Applied Surface Science, 264 (2013):273-279, https://doi.org/10.1016/j.apsusc.2012.10.012 . .