Investigation of the isothermal section of the Ce-Co-Al ternary system at 573 K

The isothermal section of the Ce-Co-Al ternary system at 573 K was investigated by X-ray powder diffraction （XRD）, scanning electron microscopy （SEM） and energy dispersive X-ray spectroscopy （EDS） techniques. It consisted of 19 single-phase regions, 46 two-phase regions and 25 three-phase regions. F...

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Bibliographic Details
Published in:Journal of rare earths 2011-07, Vol.29 (7), p.650-653
Main Author: 姚青荣 周怀营 唐成颖 潘顺康
Format: Article
Language:English
Subjects:
Aluminum
Coal
Diffraction
electron microscopy
Homogeneity
phase identification
Rare earth metals
rare-earth alloys
Scanning electron microscopy
Solid solubility
Ternary systems
X-ray diffraction
X射线衍射
三元体系
三元化合物
扫描电子显微镜
等温截面
行政
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Summary:The isothermal section of the Ce-Co-Al ternary system at 573 K was investigated by X-ray powder diffraction （XRD）, scanning electron microscopy （SEM） and energy dispersive X-ray spectroscopy （EDS） techniques. It consisted of 19 single-phase regions, 46 two-phase regions and 25 three-phase regions. Four ternary compounds, namely CeCoAl, Ce2Co15Al2, CeCoAl4, CeCo2Al8, were confirmed in this system. At 573 K, the maximum solid solubilities of Co in CeAl2 and Al in CeCo2 were about 10.4 at.% and 10.0 at.%, respectively. The homogeneity range of CoAl phase extended from about 46.0 to 56.0 at.% Al.
ISSN:1002-0721
2509-4963
DOI:10.1016/S1002-0721(10)60515-7