A study of the reaction kinetics for the formation of rare earth-transition metal laves compounds

Deodhar, S.S.; Ficalora, P. J.

doi:10.1007/bf02646855

Cited by 36 publications

(15 citation statements)

References 11 publications

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“…During optimization, the A and B parameters are comprised to satisfy both the thermodynamic data and phase diagram information within the uncertainty. The enthalpy of formation reported by Pasturel et al [20] was considered but not that by Deodhar and Ficalora [19] due to its unreliability. The obtained optimized model parameters are given in Table 1.…”

Section: Explain the Lower Valuesmentioning

confidence: 96%

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Experimental investigation and thermodynamic modeling of the Ni–Pr system

Huang

Lograsso

2005

Journal of Alloys and Compounds

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Section: Explain the Lower Valuesmentioning

confidence: 96%

“…The enthalpies of formation of Ni 2 Pr and Ni 5 Pr were measured by Deodhar and Ficalora [19] and Pasturel et al [20], respectively.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation and thermodynamic modeling of the Ni–Pr system

Huang

Lograsso

2005

Journal of Alloys and Compounds

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“…1, and therefore the measurement of Meschel et al [55] is less reliable. Deodhar and Ficalora [56] also reported the DH o 298 of the GdFe 2 compound from their DTA experiments. The reported values were not reliable due to several kinetic limitations of the formation reaction, along with reported complex reaction mechanisms and C p assumptions.…”

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

confidence: 99%

“…163 Dy, and 164 Dy. However, the ion currents due to 54 Fe, 56 Fe, 57 Fe and 58 Fe isotopes were not detected, as the vapor pressures in equilibrium with the alloys were assumed to be low. The activities of Dy of different alloys derived from KEMS measurement are summarized in Fig.…”

Section: The Fe-dy (Iron-dysprosium) Systemmentioning

confidence: 99%

“…The KEMS measurements were carried out for the samples across the entire composition in the temperature range of 1473-1573 K. The ion currents for Y were determined with the help of 89 Y isotope. The more abundant 54 Fe and 56 Fe were chosen for Fe detection among the possible 54 Fe, 56 Fe, 57 Fe and 58 Fe isotopes. As can be seen in Fig.…”

Section: The Fe-y (Iron-yttrium) 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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III. Highly reactive and multicomponent systems: On the constitution and thermodynamics of Ni‐Gd alloys

Dischinger

Schaller

1998

Ber Bunsenges Phys Chem

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The thermodynamic properties of Ni‐Gd alloys were determined by electromotive force measurements between 873 and 1073 K on galvanic cells using CaF2 single crystals as solid electrolytes. Results yield a complete set of thermodynamic functions for the intermetallic phases (Ni), Ni17Gd2, Ni5Gd, Ni4Gd, Ni7Gd2, Ni3Gd, Ni2Gd, NiGd, Ni2Gd3, and NiGd3, as well as information on the phase relations. The system is characterized by pronounced negative deviations from ideality. The relative partial excess Gibbs energy of gadolinium at infinite dilution, ΔG EE (xGd→0), was determined to be ‐(104±5) kJ/mol. A comparison with analogous systems indicates the influence of the electronic structure of the components on thermodynamic properties of mixing. In order to fix the liquidus curve, differential thermal analysis was carried out over the entire range of composition.

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A study of the reaction kinetics for the formation of rare earth-transition metal laves compounds

Cited by 36 publications

References 11 publications

Experimental investigation and thermodynamic modeling of the Ni–Pr system

Experimental investigation and thermodynamic modeling of the Ni–Pr system

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

III. Highly reactive and multicomponent systems: On the constitution and thermodynamics of Ni‐Gd alloys

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