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Mechanochemical Activation‐Assisted Low‐Temperature Synthesis of CaZrO 3
Author(s) -
Ye Guotian,
Troczynski Tom
Publication year - 2007
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.1551-2916.2006.01335.x
Subject(s) - calcination , crystallite , materials science , chemical engineering , zirconate , homogeneity (statistics) , solid state , mineralogy , ceramic , metallurgy , chemistry , catalysis , biochemistry , statistics , mathematics , engineering , titanate
Calcium zirconate (CaZrO 3 , CZ) was prepared using a solid‐state reaction with mechanochemical activation through vibro‐milling, aiming at completing the reaction CaO+ZrO 2 =CaZrO 3 at relatively low calcination temperatures. Changes in the crystallite size and homogeneity of the mixed components CaO and ZrO 2 in the starting mixtures were observed with different milling times. The influence of milling on the incipient temperature of CZ formation and completion of CZ formation was investigated. It is concluded that milling of the reactants for 20 h lowered the incipient temperature of CZ formation from 800° to 600°C, and the temperature of complete CZ formation from above 1100° to 800°C.