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Growth mechanism of titanium monoxide TiO x on a reduced calcium titanate CaTi 2 O 4 surface
Author(s) -
Guo Cong,
Sheng Huaping,
Ma Yurong,
Jin Lei,
Jia Shuangfeng,
Zheng He,
Liu Yong,
Shi Jing,
Wang Jianbo
Publication year - 2015
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s1600576715020348
Subject(s) - materials science , calcium titanate , titanate , monoxide , crystallography , transmission electron microscopy , titanium , amorphous solid , electron backscatter diffraction , mineralogy , analytical chemistry (journal) , nanotechnology , chemistry , microstructure , ceramic , metallurgy , organic chemistry
This paper presents an electron microscopy study of reduced calcium titanate crystals (CaTi 2 O 4 ) and the growth mechanism of titanium monoxide TiO x on a CaTi 2 O 4 surface. Large high‐quality CaTi 2 O 4 crystals were prepared using the molten salt flux method. The crystallographic directions and the growth direction of the CaTi 2 O 4 crystalline needles were confirmed by electron backscatter diffraction and Kikuchi pattern analysis. The low‐angle grain boundaries in CaTi 2 O 4 and the crystallographic orientation relationship between CaTi 2 O 4 and TiO x were investigated using high‐resolution transmission electron microscopy. It is found that both the low‐angle boundaries and the amorphous area may play a key role during the growth process of titanium monoxide TiO x . The results presented here contribute to a better understanding of the detailed growth mechanism of TiO x on a CaTi 2 O 4 surface.
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