Naslov
Mechanism of ZrTiO4 synthesis by mechanochemical processing of TiO2 and ZrO2

Autori
Gajović, Andreja ; Djerdj, Igor ; Furić, Krešimir ; Su, Dangsheng ; Tonejc, Antun ; Tonejc, Anđelka M. ; Musić, Svetozar ; Schlögl, Robert

Izvornik
Journal of the American Ceramic Society (0002-7820) 89 (2006), 7; 2196-2205

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
zirconia; mills/milling; Raman spectroscopy; synthesis; titanium dioxide

Sažetak
High-energy ball-milling initiates a solid state reaction in an equimolar mixture of TiO2 and ZrO2. The first stage of ball-milling induced the transformation of anatase TiO2 to high-pressure phase TiO2 (II), isostructural with ZrTiO4. The formation of solid-solutions monoclinic ZrO2/TiO2 and TiO2 (II)/ZrO2 was observed in intermediate stage. Afterward, nanosized ZrTiO4 phase was formed in the milled product from TiO2 (II)/ZrO2 solid-solution. The sintering of the milled product at a temperature < 1100 &#61616; C was examined in situ by Raman spectroscopy. The full solid state reaction towards ZrTiO4 ceramic is completed at a temperature considerably lower than reported in literature.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija

POVEZANOST RADA