Phase equilibria of the La-Ni-Cu ternary system at 673 K: Thermodynamic modeling and experimental validation

Xuehui An; Qian Li; Jieyu Zhang; Shuanglin Chen; Ying Yang

doi:10.1016/j.calphad.2011.10.004

Phase equilibria of the La-Ni-Cu ternary system at 673 K: Thermodynamic modeling and experimental validation

Xuehui An, Qian Li, Jieyu Zhang, Shuanglin Chen, Ying Yang

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

Phase equilibria and thermodynamic properties in the LaNiCu ternary system were studied by coupling thermodynamic modeling and experimental validation. A set of self-consistent thermodynamic descriptions for phases in the LaNiCu system were obtained on the basis of those three constituent binary and ternary experimental data in the literature. The isothermal section at 673 K and the mixing enthalpy of liquid calculated from the currently constructed ternary thermodynamic description were favorably compared with available experimental data. Three key alloy samples were then selected, synthesized and annealed at 673 K in order to further validate the calculated phase equilibria. These alloys were analyzed by means of inductively coupled plasma (ICP), X-ray diffraction (XRD), scanning electron microscopy (SEM)/back-scattered electrons (BSE) and energy disperse spectroscopy (EDS), and the experimental results were in reasonable agreement with the calculated phase equilibrium relationships.

Original language	English
Pages (from-to)	8-15
Number of pages	8
Journal	Calphad: Computer Coupling of Phase Diagrams and Thermochemistry
Volume	36
DOIs	https://doi.org/10.1016/j.calphad.2011.10.004
State	Published - Mar 2012
Externally published	Yes

Funding

The authors thank Instrumental Analysis and Research Center of Shanghai University for their support of materials testing and research. This work was financially supported by the National Natural Science Foundation of China ( 51074103 and 50804029 ), Shanghai Rising-Star Program ( 11QH1400900 ) and the Program for Changjiang Scholars Innovative Research Team in University ( IRT0739 ).

Funders	Funder number
Program for Changjiang Scholars Innovative Research Team in University	IRT0739
National Natural Science Foundation of China	50804029, 51074103
Shanghai Rising-Star Program	11QH1400900

Keywords

Hydrogen storage alloys
LaNiCu system
Phase equilibria
Thermodynamic modeling

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.calphad.2011.10.004

Cite this

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abstract = "Phase equilibria and thermodynamic properties in the LaNiCu ternary system were studied by coupling thermodynamic modeling and experimental validation. A set of self-consistent thermodynamic descriptions for phases in the LaNiCu system were obtained on the basis of those three constituent binary and ternary experimental data in the literature. The isothermal section at 673 K and the mixing enthalpy of liquid calculated from the currently constructed ternary thermodynamic description were favorably compared with available experimental data. Three key alloy samples were then selected, synthesized and annealed at 673 K in order to further validate the calculated phase equilibria. These alloys were analyzed by means of inductively coupled plasma (ICP), X-ray diffraction (XRD), scanning electron microscopy (SEM)/back-scattered electrons (BSE) and energy disperse spectroscopy (EDS), and the experimental results were in reasonable agreement with the calculated phase equilibrium relationships.",

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author = "Xuehui An and Qian Li and Jieyu Zhang and Shuanglin Chen and Ying Yang",

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T1 - Phase equilibria of the La-Ni-Cu ternary system at 673 K

T2 - Thermodynamic modeling and experimental validation

AU - An, Xuehui

AU - Li, Qian

AU - Zhang, Jieyu

AU - Chen, Shuanglin

AU - Yang, Ying

PY - 2012/3

Y1 - 2012/3

N2 - Phase equilibria and thermodynamic properties in the LaNiCu ternary system were studied by coupling thermodynamic modeling and experimental validation. A set of self-consistent thermodynamic descriptions for phases in the LaNiCu system were obtained on the basis of those three constituent binary and ternary experimental data in the literature. The isothermal section at 673 K and the mixing enthalpy of liquid calculated from the currently constructed ternary thermodynamic description were favorably compared with available experimental data. Three key alloy samples were then selected, synthesized and annealed at 673 K in order to further validate the calculated phase equilibria. These alloys were analyzed by means of inductively coupled plasma (ICP), X-ray diffraction (XRD), scanning electron microscopy (SEM)/back-scattered electrons (BSE) and energy disperse spectroscopy (EDS), and the experimental results were in reasonable agreement with the calculated phase equilibrium relationships.

AB - Phase equilibria and thermodynamic properties in the LaNiCu ternary system were studied by coupling thermodynamic modeling and experimental validation. A set of self-consistent thermodynamic descriptions for phases in the LaNiCu system were obtained on the basis of those three constituent binary and ternary experimental data in the literature. The isothermal section at 673 K and the mixing enthalpy of liquid calculated from the currently constructed ternary thermodynamic description were favorably compared with available experimental data. Three key alloy samples were then selected, synthesized and annealed at 673 K in order to further validate the calculated phase equilibria. These alloys were analyzed by means of inductively coupled plasma (ICP), X-ray diffraction (XRD), scanning electron microscopy (SEM)/back-scattered electrons (BSE) and energy disperse spectroscopy (EDS), and the experimental results were in reasonable agreement with the calculated phase equilibrium relationships.

KW - Hydrogen storage alloys

KW - LaNiCu system

KW - Phase equilibria

KW - Thermodynamic modeling

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JO - Calphad: Computer Coupling of Phase Diagrams and Thermochemistry

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ER -

Phase equilibria of the La-Ni-Cu ternary system at 673 K: Thermodynamic modeling and experimental validation

Abstract

Funding

Keywords

UN SDGs

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