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Phase Transformation of Nanocrystalline Anatase Powders Induced by Mechanical Activation
Author(s) -
Xiaoyan Pan,
Yi Chen,
Xueming Ma,
Lihui Zhu
Publication year - 2004
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.1551-2916.2004.01164.x
Subject(s) - nanocrystalline material , anatase , ball mill , materials science , rutile , amorphous solid , chemical engineering , phase (matter) , activation energy , nanocrystal , particle size , metallurgy , mineralogy , nanotechnology , crystallography , chemistry , catalysis , organic chemistry , photocatalysis , engineering
The microstructural evolution of nanocrystalline anatase TiO 2 during high‐energy planetary ball milling was studied. The results show that mechanical activation induces the transformations of nanocrystalline TiO 2 from anatase to srilankite and rutile at room temperature and under ambient pressure. As the milling time increases, more anatase powder transforms to the srilankite and rutile phase, and the particle size of the powder decreases. There is no indication of the formation of amorphous phase during ball milling.