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Enthalpies of mixing in liquid alloys of iron with the lanthanides

  • Michael Ivanov , Vadim Berezutski , Natalia Usenko and Natalia Kotova
Published/Copyright: October 16, 2013
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 104 Issue 9

Abstract

The enthalpies of mixing in binary liquid alloys of iron with the lanthanides (Pr, Nd, Gd, Tb, Dy and Lu) were determined at 1550–1950 K by means of isoperibolic calorimetry. They show exothermic effects (in the Fe–Pr system partially endothermic) which increase across the lanthanides row from the Fe–Pr system (ΔHmin = −0.35 ± 0.10 kJ · mol−1 at xPr = 0.22; ΔHmax = 0.75 ± 0.24 kJ · mol−1 at xPr = 0.76; T = 1829 K) to the Fe–Lu system (ΔHmin = −11.58 ± 0.50 kJ · mol−1 at xLu = 0.35; T = 1950 K).

Keywords:: Iron; Lanthanides; Calorimetry; Enthalpy of mixing
* Correspondence address, Dr. Nathalia Usenko, Department of Chemistry, Taras Shevchenko National University, 64/13, Volodymirska St., Kyiv, Ukraine, 01601, Tel.: +380442393370, E-mail:

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Received: 2012-11-29
Accepted: 2013-3-20
Published Online: 2013-10-16
Published in Print: 2013-09-12

© 2013, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.110943
Keywords for this article
Iron; Lanthanides; Calorimetry; Enthalpy of mixing

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. The interrelated effect of activation energy and grain boundary energy on grain growth in nanocrystalline materials
  5. Microstructural evolution of as-rolled modified 9Cr-1Mo steel during friction stir welding
  6. Effect of milling duration on the evolution of shape memory properties in a powder processed Cu–Al–Ni–Ti alloy
  7. Experimental investigation of phase equilibria in the Co–Cr–W ternary system
  8. Phase equilibria of the Zn–Al–Ti system at 370°C in the Zn-rich region
  9. Enthalpies of mixing in liquid alloys of iron with the lanthanides
  10. Ab-initio studies of some rare-earth borides: CeB2, PrB2, NdB2, and PmB2
  11. Influence of different contents of Si and Cu on the solidification pathways of cast hypoeutectic Al-(5–9)Si-(1–4)Cu (wt.%) alloys
  12. Undercooling of Sn–Ag–Cu alloys: solder balls and solder joints solidification
  13. Nitrogen deficiency and metal dopant induced sub-stoichiometry in titanium nitride thin films: a comparative study
  14. The influence of AlCrN coating on the high-temperature corrosion resistance of Ti-46Al-7Nb alloy in an atmosphere containing 9%O2 + 0.2%HCl + 0.08%SO2 + N2
  15. PEMFC membrane electrode assembly degradation study based on its mechanical properties
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  18. Copper/bamboo fabric composite prepared via a silver catalytic electroless deposition process for electromagnetic shielding
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  20. Dr. Herbert Karl Schmid
  21. Ludwig Gauckler
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