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Mechanism of ZrTiO 4 Synthesis by Mechanochemical Processing of TiO 2 and ZrO 2
Author(s) -
Gajović Andreja,
Furić Krešimir,
Musić Svetozar,
Djerdj Igor,
Tonejc Antun,
Tonejc Anđelka M.,
Su Dangsheng,
Schlögl Robert
Publication year - 2006
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2006.00972.x
Subject(s) - materials science , ball mill , monoclinic crystal system , anatase , sintering , solid solution , ceramic , raman spectroscopy , isostructural , chemical engineering , solid state , phase (matter) , mechanochemistry , mineralogy , crystallography , chemistry , crystal structure , metallurgy , nanotechnology , catalysis , organic chemistry , photocatalysis , physics , optics , engineering
High‐energy ball milling initiates a solid‐state reaction in an equimolar mixture of TiO 2 and ZrO 2 . The first stage of ball milling induced the transformation of anatase TiO 2 to high‐pressure phase TiO 2 (II), isostructural with ZrTiO 4 . The formation of solid solutions monoclinic ZrO 2 /TiO 2 and TiO 2 (II)/ZrO 2 was observed in the intermediate stage. Afterward, a nanosized ZrTiO 4 phase was formed in the milled product from the TiO 2 (II)/ZrO 2 solid solution. The sintering of the milled product at a temperature <1100°C was examined in situ by Raman spectroscopy. The full solid‐state reaction toward ZrTiO 4 ceramic is completed at a temperature considerably lower than reported in the literature.