Pregled bibliografske jedinice broj: 80715
Ball milling of TiO2 and ZrO2
Ball milling of TiO2 and ZrO2 // Autumn School on Materials Science and Electron Microscopy 2002, "Progress in Advanced Materials Science through Electron Microscopy", Humboldt University of Berlin, Institute of Physics
Berlin: Humboldt University of Berlin, 2002. str. 11-11a (poster, međunarodna recenzija, prošireni sažetak, znanstveni)
CROSBI ID: 80715 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Ball milling of TiO2 and ZrO2
Autori
Gajović, Andreja ; Furić, Krešimir ; Musić, Svetozar
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, prošireni sažetak, znanstveni
Izvornik
Autumn School on Materials Science and Electron Microscopy 2002, "Progress in Advanced Materials Science through Electron Microscopy", Humboldt University of Berlin, Institute of Physics
/ - Berlin : Humboldt University of Berlin, 2002, 11-11a
Skup
Autumn School on Materials Science and Electron Microscopy 2002, "Progress in Advanced Materials Science through Electron Microscopy", Humboldt University of Berlin, Institute of Physics
Mjesto i datum
Berlin, Njemačka, 28.09.2002.-03.10.2002
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
ball milling ; Raman spectroscopy ; electron microscopy ; TiO2 ; ZrO2 ; phase transition ; nano particles
Sažetak
High-energy ball milling of TiO2 and ZrO2 powders induce changes of crystal structure and decrease of particle sizes. Structural changes for different milling condition and possible solid-state reaction in mixture of these oxides were investigated by Raman spectroscopy. Changes of particle dimension were monitored by transmission electron microscopy. The results were compared with our previous experiments performed in different milling assembly. The different milling time of TiO2 induced sequence of phase transitions, from anatase through high-pressure TiO2 II phase to rutil. The kinetics of phase transition depended on powder-to-ball weight ratio. Monoclinic ZrO2 was partially transformed to tetragonal phase during milling. The milling of mixture of oxides did not complete the solid-state reaction, so the subsequent heating was necessary. In both materials prolonged milling decreased the particle to nanometric sizes. The milling induced phase transition for which otherwise high temperature or high pressure were necessary, and it was shown to be a simple method for preparation of nanoparticles.
Izvorni jezik
Engleski
Znanstvena područja
Fizika, Kemija
POVEZANOST RADA
Projekti:
0098062
MZOS-0098022 - Fizika i primjena nanostruktura (Furić, Krešimir, MZOS ) ( CroRIS)
Ustanove:
Institut "Ruđer Bošković", Zagreb
