Phase Equilibria at 1173 K in the Ternary Fe-Pt-Tb System

Gu, Zhonghua; Xu, Canxia; Ao, Dongyi; Cheng, Gang; Gao, X. Q.; Du, Yanxia; Ma, L.

doi:10.1007/s11669-014-0283-0

Cited by 4 publications

(3 citation statements)

References 16 publications

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“…According to Chen et al, [63] Tb 2 Fe 17 was observed at the solidification temperature with no homogeneity range. As part of the phase diagram study of the Fe-Pt-Tb system, Gu et al [64] also confirmed the existence of a stoichiometric Tb 2 Fe 17 with Th 2 Zn 17 type rhombohedral structure at 900°C (1173 K) with XRD. In the present study, a single stoichiometric phase of Tb 2 Fe 17 was considered without polymorphic transition.…”

Section: The Fe-gd (Iron-gadolinium) Systemmentioning

confidence: 85%

“…The present optimization reproduced these experimental data accurately. At the time of previous assessments by Landin and Å gren, [60] and Konar, [41] no such experimental enthalpy of mixing data were available, hence the estimated enthalpies The optimized phase diagram of the Fe-Tb system with the experimental data (a) overall composition range, [61][62][63][64] (b) in the hightemperature region [61][62][63] (c) in the Fe-rich side are quite different from the present result as shown in Fig. 6 [65] and Meschel et al [55] are presented in Fig.…”

Section: The Fe-gd (Iron-gadolinium) Systemmentioning

confidence: 99%

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Critical Systematic Evaluation and Thermodynamic Optimization of the Fe-RE System: RE = Gd, Tb, Dy, Ho, Er, Tm, Lu, and Y

Konar

Kim

Jung

2017

J. Phase Equilib. Diffus.

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As the second part of the thermodynamic study of binary Fe-RE system, critical evaluations and optimizations of all available phase diagrams and thermodynamic data for the Fe-heavy RE (heavy RE = Gd, Tb, Dy, Ho, Er, Tm, Lu, and Y) systems were conducted to obtain reliable thermodynamic functions of all the phases in the systems. In the thermodynamic modeling of the heavy RE systems, systematic variations in the phase diagrams and thermodynamic properties such as the enthalpy of mixing in the liquid state and enthalpy of formation of solid compounds with the atomic number of lanthanide series were observed. These systematic trends were incorporated in the optimization of the Fe-heavy RE system to resolve inconsistencies between available experimental data and to estimate unknown thermodynamic properties. The systematic trends in thermodynamic properties of solid and liquid phases and phase diagram of the entire Fe-RE systems were summarized.

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Section: The Fe-gd (Iron-gadolinium) Systemmentioning

confidence: 85%

Section: The Fe-gd (Iron-gadolinium) Systemmentioning

confidence: 99%

Critical Systematic Evaluation and Thermodynamic Optimization of the Fe-RE System: RE = Gd, Tb, Dy, Ho, Er, Tm, Lu, and Y

Konar

Kim

Jung

2017

J. Phase Equilib. Diffus.

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“…[1][2][3] In recent years, a number of studies on the permanent-magnet properties of Fe-Pt alloy with added rare-earth (RE) elements have been reported. [4][5][6][7] Knowledge on the phase diagrams of RE-Fe-Pt ternary systems is necessary to study new Fe-Pt permanent-magnet materials in the future.…”

Section: Introductionmentioning

confidence: 99%