1. The isothermal section of the Tb–Co–Cr ternary system at 873 K.
- Author
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Yao, Q.R., Lan, X.X., Zhou, H.Y., Pan, S.K., and Wang, Z.M.
- Subjects
ATMOSPHERIC temperature ,TERNARY phase diagrams ,SCANNING electron microscopy ,X-ray diffraction ,TERBIUM ,METALLOGRAPHY ,X-ray spectroscopy - Abstract
The isothermal section of the phase diagram of the Tb–Co–Cr ternary system at 873 K was investigated by means of X-ray diffraction, metallography, and scanning electron microscopy equipped with energy dispersive X-ray spectroscopy. Ternary phases and their lattice parameters as a function of composition of solid solution were systematically studied. The existence of one ternary phase reported previously was confirmed. The ternary compound Tb(Co, Cr)12 crystallizes with ThMn12-type structure, space group I4/mmm. The linear homogeneity range along the line of 7.69 at.% Tb in TbCo12− x Cr x was found to be about x = 3.6–5.7, i.e., 27.7–43.8 at.% Cr. The lattice parameters are a = 0.8326–0.8352 nm and c = 0.4709–0.4740 nm. The maximum solid solubilities of Cr in Tb2Co17, TbCo3, and TbCo2 are about 20.0, 8.2, and 7.9 at.%, respectively. [ABSTRACT FROM AUTHOR]
- Published
- 2011
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