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A thermodynamic description of the Ce–La–Mg system

  • Cuiping Guo , Zhenmin Du and Changrong Li
Published/Copyright: June 11, 2013
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 101 Issue 11

Abstract

The thermodynamic optimization of the Ce–La and Ce–La–Mg systems has been carried out using the CALPHAD technique. The solution phases (liquid, bcc, fcc, hcp and dhcp) were described with a substitutional solution model. The isostructural compounds MgCe in the Ce–Mg system and MgLa in the La–Mg system with B2 structure form a continuous range of solid solution in the Ce–La–Mg system. The order–disorder transition between the solutions with A2 structure and compounds with B2 structure in the system has been taken into account and thermodynamically modeled. The other isostructural compounds Mg12Ce and Mg12La, Mg17Ce2 and Mg17La2, Mg41Ce5 and Mg41La5, Mg3Ce and Mg3La, and Mg2Ce and Mg2La were described as such formula Mg12(Ce, La), Mg17(Ce, La)2, Mg41(Ce, La)5, Mg3(Ce, La, Mg), Mg2(Ce, La), respectively. A set of self-consistent thermodynamic description of the Ce–La–Mg system was obtained.

Keywords: Thermodynamic modeling; CALPHAD technique; Ce–La–Mg system; Order–disorder transition

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Received: 2009-3-31
Accepted: 2010-1-8
Published Online: 2013-06-11
Published in Print: 2010-11-01

© 2010, Carl Hanser Verlag, München

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  12. Experimental investigation and thermodynamic modeling of the Cu–Mn–Zn system
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  18. A thermodynamic description of the Ce–La–Mg system
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https://doi.org/10.3139/146.110380
Keywords for this article
Thermodynamic modeling; CALPHAD technique; Ce–La–Mg system; Order–disorder transition

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. 2nd Sino-German Symposium on Computational Thermodynamics and Kinetics and their Applications to Solidification
  5. Basic
  6. Multiscale simulations on the grain growth process in nanostructured materials
  7. Thermodynamic re-modeling of the Co–Gd system
  8. Microstructure and tribological properties of in-situ Y2O3/Ti-5Si alloy composites
  9. Phase relations in the ZrO2–Nd2O3–Y2O3 system: experimental study and CALPHAD assessment
  10. Phase transition in nanocrystalline iron: Atomistic-level simulations
  11. Thermodynamic assessment of the Cr–Al–Nb system
  12. Experimental investigation and thermodynamic modeling of the Cu–Mn–Zn system
  13. Elastic constants and thermophysical properties of Al–Mg–Si alloys from first-principles calculations
  14. Predicting microsegregation in multicomponent aluminum alloys – progress in thermodynamic consistency
  15. Phase reaction of ceria in LPS–SiC with Al2O3–Y2O3 and AlN–Y2O3 additives
  16. Applied
  17. Phase equilibria in the Fe–Ti–V system
  18. A thermodynamic description of the Ce–La–Mg system
  19. Molar volume calculation of Ga–Bi–X (X=Sn, In) liquid alloys using the general solution model
  20. Microstructural analysis in the vacuum brazing of copper to copper using a phosphor–copper brazing filler metal
  21. Microstructural development of the hot extruded magnesium alloy AZ31 under cyclic testing conditions
  22. DGM News
  23. DGM News
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