20.500.12556/RUL-126375 Revision of the mechanisms behind oil-water (O/W) emulsion preparation by ultrasound and cavitation Today emulsion preparation is receiving a lot of scientific attention, since emulsions are playing an essential role in many of the big industries, such as food, pharmaceutical or cosmetic industry. One of the most promising techniques for emulsion preparation is ultrasound emulsification. The purpose of this study is to expand the knowledge on the ultrasonically assisted emulsification model, that has not been amended since 1978. The model explains that oil-in-water emulsion formation is a two-step process. Firstly, the surface of the oil phase is disturbed and separated by the acoustic waves. Secondly, cavitation implosions further disrupt and disperse oil drops. We have used a high-speed camera to closely observe oil-in-water emulsion formation. The images show, that the ultrasound emulsification process is profoundly more complex. While the first and the last step of emulsion formation are the same as believed until now, additional intermediate stages of water-in-oil and even oil-in-water-in-oil occur. ultrasound emulsion emulsification oil-water cavitation mechanism high-speed visualization kavitacija emulzija mehurčki true false true Angleški jezik Slovenski jezik Članek v reviji 2021-04-19 14:45:27 2021-04-19 14:45:30 2022-09-05 03:54:58 0000-00-00 00:00:00 2019 0 0 Str. 298-304 Vol. 51 Mar. 2019 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 532.528(045) 1350-4177 10.1016/j.ultsonch.2018.10.003 16342299 RAZ_Stepisnik_Perdih_Tadej_2019.pdf RAZ_Stepisnik_Perdih_Tadej_2019.pdf 1 63D0FC5F7E261630F52321329FD39898 ca5fddc3263cea95f789f1229815b8f1b7fbe7c13167c322ca1ae8e47f0ca516 e589cd45-a1bb-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=142302 https://www.sciencedirect.com/science/article/pii/S1350417718309179 1 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=142300 Fakulteta za strojništvo 0 0 0