期刊
MATERIALS CHARACTERIZATION
卷 63, 期 -, 页码 56-62出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.matchar.2011.10.006
关键词
X-ray diffraction; Composite materials; Phase transformation; TiB2
类别
资金
- National Nature Science Fund of China [51071097]
- Fundamental Research Funds for the Central Universities [11QG67]
TiB2 particles are prepared by TiC in Al melts and the characteristics of them are studied. It is found that TiC particles are unstable when boron exists in Al melts with high temperature and will transform to TiB2 and Al4C3. Most of the synthesized TiB2 particles are regular hexagonal prisms with submicron size. The diameter of the undersurfaces of these prisms is ranging from 200 nm to 1 pm and the height is ranging from 100 nm to 300 nm. It is considered that controlling the transformation from TiC to TiB2 is an effective method to prepare small and uniform TiB2 particles. (C) 2011 Elsevier Inc. All rights reserved.
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