Carlos Ballardin Beltrami

Ph.D student

carlos.ballardinbeltrami@student.unibz.it

Carlos Beltrami obtained his Diploma in Physical Engineering from the Federal University of Rio Grande do Sul (UFRGS) in 2020. Between 2020 and 2022, he worked as a researcher at the New Technologies Research Centre of the University of West Bohemia (UWB), where he designed several infrared detection setups for industrial processes. Currently, he is a PhD student at the Faculty of Engineering of the Free University of Bozen-Bolzano (Unibz), where he is working on developing sensors and systems for Smart textiles.

Main research areas

Fabrication and characterization of sensors and thin-film electronics on textiles.

Relevant Links

Current project: Unobtrusive thin-film sensors inside mono-filaments and woven textiles.

Publications:

2023

  • [DOI] D. Moskal, J. Martan, M. Honner, C. Beltrami, M. Kleefoot, and V. Lang, “Inverse dependence of heat accumulation on pulse duration in laser surface processing with ultrashort pulses,” International journal of heat and mass transfer, vol. 213, p. 124328, 2023.
    [Bibtex] 
    @article{Moskal_2023,
abstract = {Laser pulse duration is one of the important parameters that is able to dramatically change ablation efficiency. Shorter laser pulse duration leads to deeper transport of absorbed energy in subsurface material layers. Ultra-fast and non-equilibrium processes are able to remarkably affect residual energy, which is accumulated in the deeper subsurface layers after ablation. On the other hand, undesirably high heat accumulation leads to material overheating with surface oxidation, appearance of liquid phase and, as a result, low processing quality. In this paper, the influence of laser pulse duration on the heat accumulation value was experimentally evaluated for the first time. Heat accumulation was measured with a highly sensitive fast infrared detector. The results were presented in comparison with surface structure analysis, material ablation rate and optical reflectivity. Unexpected inverse dependence of heat accumulation on laser pulse duration was detected. An optimal laser pulse duration near 1 ps corresponds to the maximum heat accumulation value and also highest ablation efficiency in contrast to longer laser pulses. The same optimal pulse duration value was detected for low frequency (250 kHz) and for high frequency (1 MHz) laser surface processing regimes. The maximum heat accumulation value was expected at the longest laser pulses. The results are discussed from the point of view of the two-temperature model.},
added-at = {2023-07-05T00:55:09.000+0200},
author = {Moskal, Denys and Martan, Jiri and Honner, Milan and Beltrami, Carlos and Kleefoot, Max-Jonathan and Lang, Vladislav},
biburl = {https://www.bibsonomy.org/bibtex/28dba0ff55b417c041a650563f896a32c/beltrami},
doi = {10.1016/j.ijheatmasstransfer.2023.124328},
interhash = {7ac31964d380400c0cbc5e8889594444},
intrahash = {8dba0ff55b417c041a650563f896a32c},
journal = {International Journal of Heat and Mass Transfer},
keywords = {myown},
month = oct,
pages = 124328,
publisher = {Elsevier {BV}},
timestamp = {2023-07-05T14:03:52.000+0200},
title = {Inverse dependence of heat accumulation on pulse duration in laser surface processing with ultrashort pulses},
url = {https://doi.org/10.1016%2Fj.ijheatmasstransfer.2023.124328},
volume = 213,
year = 2023
}

2022

  • [DOI] J. Martan, C. Beltrami, P. Hauschwitz, D. Moskal, R. Bičišťová, M. Honner, A. Brodsky, and V. Lang, “Thermal signature of lipss formation revealed by infrared diagnostics,” Procedia CIRP, vol. 111, p. 588–591, 2022.
    [Bibtex] 
    @article{Martan_2022,
added-at = {2023-07-05T00:57:29.000+0200},
author = {Martan, Jiri and Beltrami, Carlos and Hauschwitz, Petr and Moskal, Denys and Bi{\v{c}}i{\v{s}}{\v{t}}ov{\'{a}}, Radka and Honner, Milan and Brodsky, Alexander and Lang, Vladislav},
biburl = {https://www.bibsonomy.org/bibtex/210bf7ef81b9769e3f9c14a99bb59f1b1/beltrami},
doi = {10.1016/j.procir.2022.08.156},
interhash = {e983729ce49ec5b6c04ecb545cc90340},
intrahash = {10bf7ef81b9769e3f9c14a99bb59f1b1},
journal = {Procedia {CIRP}},
keywords = {myown},
pages = {588--591},
publisher = {Elsevier {BV}},
timestamp = {2023-07-05T14:03:43.000+0200},
title = {Thermal signature of LIPSS formation revealed by infrared diagnostics},
url = {https://doi.org/10.1016%2Fj.procir.2022.08.156},
volume = 111,
year = 2022
}
  • [DOI] M. Kleefoot, J. Martan, C. Beltrami, J. Sandherr, M. Honner, S. Ruck, V. Knoblauch, and H. Riegel, “Process temperature measurement during nanosecond pulse laser micromachining of li-ion battery electrodes,” Procedia CIRP, vol. 111, p. 806–809, 2022.
    [Bibtex] 
    @article{Kleefoot_2022,
added-at = {2023-07-05T00:56:09.000+0200},
author = {Kleefoot, Max-Jonathan and Martan, Jiri and Beltrami, Carlos and Sandherr, Jens and Honner, Milan and Ruck, Simon and Knoblauch, Volker and Riegel, Harald},
biburl = {https://www.bibsonomy.org/bibtex/22fe5f4eb79935d0b187dd01d558e8cfc/beltrami},
doi = {10.1016/j.procir.2022.08.133},
interhash = {96eddf6f8fa432e3fd6f68ce4f5ce95b},
intrahash = {2fe5f4eb79935d0b187dd01d558e8cfc},
journal = {Procedia {CIRP}},
keywords = {myown},
pages = {806--809},
publisher = {Elsevier {BV}},
timestamp = {2023-07-05T14:03:36.000+0200},
title = {Process temperature measurement during nanosecond pulse laser micromachining of Li-Ion battery electrodes},
url = {https://doi.org/10.1016%2Fj.procir.2022.08.133},
volume = 111,
year = 2022
}

2021

  • [DOI] P. Hauschwitz, J. Martan, R. Bičišťová, C. Beltrami, D. Moskal, A. Brodsky, N. Kaplan, J. Mužík, D. Štepánková, J. Brajer, D. Rostohar, J. Kopeček, L. Prokešová, M. Honner, V. Lang, M. Smrž, and T. Mocek, “LIPSS-based functional surfaces produced by multi-beam nanostructuring with 2601 beams and real-time thermal processes measurement,” Scientific reports, vol. 11, iss. 1, 2021.
    [Bibtex] 
    @article{Hauschwitz_2021,
added-at = {2023-07-05T14:03:13.000+0200},
author = {Hauschwitz, P. and Martan, J. and Bi{\v{c}}i{\v{s}}{\v{t}}ov{\'{a}}, R. and Beltrami, C. and Moskal, D. and Brodsky, A. and Kaplan, N. and Mu{\v{z}}{\'{\i}}k, J. and {\v{S}}tep{\'{a}}nkov{\'{a}}, D. and Brajer, J. and Rostohar, D. and Kope{\v{c}}ek, J. and Proke{\v{s}}ov{\'{a}}, L. and Honner, M. and Lang, V. and Smr{\v{z}}, M. and Mocek, T.},
biburl = {https://www.bibsonomy.org/bibtex/2968208701a27025f795f8dedcb76b63a/beltrami},
doi = {10.1038/s41598-021-02290-3},
interhash = {9f5a022908029e16f5f9c3efc5995be4},
intrahash = {968208701a27025f795f8dedcb76b63a},
journal = {Scientific Reports},
keywords = {myown},
month = nov,
number = 1,
publisher = {Springer Science and Business Media {LLC}},
timestamp = {2023-07-05T14:03:47.000+0200},
title = {{LIPSS}-based functional surfaces produced by multi-beam nanostructuring with 2601 beams and real-time thermal processes measurement},
url = {https://doi.org/10.1038%2Fs41598-021-02290-3},
volume = 11,
year = 2021
}