Faculty of Mechanical Engineering, Lj. (FSLJ)
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Lasersko povzročene periodične površinske strukture pri teksturiranju z nanosekundnimi laserskimi bliski [Elektronski vir] = Laser-induced periodic surface structures textured by nanosecond laser pulsesGregorčič, Peter, fizik ; Mrzlikar, Žiga ; Hočevar, Matej, 1982-Z lasersko povzročenimi periodičnimi površinskimi strukturami (LIPSS) je mogoče pomembno izboljšati funkcionalnost površin, zato so predmet številnih raziskav. Pri eksperimentih smo uporabili ... nanosekuni vlakenski laser s spremenljivo dolžino bliskov in valovno dolžino [lambda] = 1060 nm, ki smo ga nadgradili s polarizatorjem. Pokazali smo, da je na ta način mogoče izdelati LIPSS brez uporabe dragih laserskih sistemov z ultrakratkimi bliski, kar pomembno širi možnosti za implementacijo tovrstnega laserskega mikrostrukturiranja na različna industrijska področja. S polariziranimi laserskimi bliski smo osvetljevali nerjavno jeklo in izmerili, da fluenca praga za ablacijo znaša Fth = 3,7 J/cm2. Rezultati kažejo, da LIPSS nastane, ko fluenca doseže vrednosti v območju 0,9 -1,4 Fth. Tedaj je perioda površinskih struktur v območju 0,9[lambda] - 1,01[lambda]. Njihova orientacija je v večini primerov neodvisna od smeri označevanja, so se pa ob določeni kombinaciji parametrov pojavile tudi izjeme, kjer so bile strukture vzporedne s smerjo označevanja. Najbolj izrazite strukture dobimo, ko vzorec nekoliko izmaknemo iz gorišča obdelovalnega snopa.Source: Svet strojništva [Elektronski vir]. - ISSN 2350-3505 (Letn. 6, št. 1/2, 2017, str. 18-25)Type of material - e-articlePublish date - 2017Language - slovenianCOBISS.SI-ID - 15603995
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Gregorčič, Peter, fizik | 29224 |
Mrzlikar, Žiga | |
Hočevar, Matej, 1982- | 32545 |
Source: Personal bibliographies
and: SICRIS
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