20.500.12556/RUL-103791 Vpliv sinteznih pogojev na morfologijo in magnetne lastnosti SrFe12O19 nanodelcev Influence of synthesis conditions on the morphology and magnetic properties of SrFe12O19 nanoparticles V diplomskem delu smo raziskovali vpliv sinteznih pogojev na obliko, velikost in magnetne lastnosti stroncij heksaferitnih nanodelcev. Stroncij heksaferit (SrFe12O19) smo sintetizirali s hidrotermalno metodo, katere cilj je izboljšanje magnetnih lastnosti (nasičeno in remanentno magnetizacijo ter koercitivnost) preiskovanega materiala v primerjavi z do sedaj doseženimi vrednostmi tako sintetiziranega SrFe12O19. S spreminjanjem temperature in časa sinteze se spreminja morfologija delcev in posledično tudi njihove magnetne lastnosti. Od temperature in časa sinteze je odvisna velikost nanodelcev kakor tudi čistost produkta, ki vpliva na magnetne lastnosti vzorcev. Magnetne lastnosti sintetiziranega materiala smo še dodatno izboljšali z žarjenjem. In this diploma work, we have been investigating the influence of synthesis parameters on the morphology, size and magnetic properties of strontium hexaferrite nanoparticles. Strontium hexaferrite (SrFe12O19) has been synthesised by hydrothermal method, the purpose of which was to enhance magnetic properties (saturation magnetization, remanence and coercivity) of the investigated material in comparison to recently obtained values. By changing the temperature and time of the synthesis we were able to tailor nanoparticles' morphology and by doing so their magnetic properties have changed. Temperature and time of the synthesis dictate particle size and purity of product material, which influences its magnetic properties. Further enhancement of the magnetic properties of strontium ferrite was achieved by annealing. stroncij heksaferit magnetni nanodelci hidrotermalna sinteza VSM XRD SEM strontium hexaferrite magnetic nanoparticles hydrothermal synthesis VSM XRD SEM true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2018-09-26 07:45:29 2018-09-26 07:45:31 2022-08-17 03:41:38 0000-00-00 00:00:00 2018 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 65508 31820071 RAZ_Ucakar_Aleksander_i2018.pdf RAZ_Ucakar_Aleksander_i2018.pdf 1 945C1884B88B6AF0480135DD885C28C5 e1ea7987993961d02122934b1ce8ca369b3de104e9a051ae7a74151db6753569 f6e49e7e-a1b5-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=114541 Naravoslovnotehniška fakulteta 0 0 0