Metallurgical and Materials Transactions A

, Volume 44, Issue 5, pp 2270–2284 | Cite as

Liquidus Projection of the B-Fe-U Diagram: The Fe-Rich Corner

  • M. DiasEmail author
  • P. A. Carvalho
  • U. V. Mardolcar
  • O. Tougait
  • H. Noël
  • A. P. Gonçalves


The liquidus projection of the Fe-rich corner of the B-Fe-U phase diagram is proposed based on powder X-ray diffraction measurements, differential thermal analysis, and scanning electron microscopy observations complemented by energy dispersive X-ray spectroscopy. The present work demonstrates the existence of 10 ternary reactions together with 18 monovariant lines and establishes their location and approximate temperatures. The ternary compounds existing in this region of the B-Fe-U ternary phase diagram, UFe3B2, UFe4B, and U2Fe21B6, were confirmed to form by ternary peritectic reactions, yet UFe4B and U2Fe21B6 have minute primary crystallization fields, indicating a more challenging preparation of single crystals for these compounds when compared with UFe3B2.


Energy Dispersive Spectroscopy Differential Thermal Analysis Curve Eutectic Mixture Ternary Diagram Liquidus Projection 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This work was partially supported by FCT, Portugal, under the Contract No. PTDC/QUI/65369/2006, and by the international project PICS SCR-ITN 2011-2013.


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Copyright information

© The Minerals, Metals & Materials Society and ASM International 2012

Authors and Affiliations

  • M. Dias
    • 1
    • 2
    Email author
  • P. A. Carvalho
    • 2
  • U. V. Mardolcar
    • 3
    • 4
  • O. Tougait
    • 5
  • H. Noël
    • 5
  • A. P. Gonçalves
    • 1
  1. 1.IST/ITN, Instituto Superior TécnicoUniversidade Técnica de LisboaSacavémPortugal
  2. 2.ICEMS, Departamento de Bioengenharia, Instituto Superior TécnicoUniversidade Técnica de LisboaLisbonPortugal
  3. 3.Departamento de Física, Instituto Superior TécnicoUniversidade Técnica de LisboaLisbonPortugal
  4. 4.Centro de Ciência Moleculares e MateriaisFaculdade de Ciências da Universidade de LisboaLisbonPortugal
  5. 5.Institut des Sciences Chimiques de Rennes, Chemie du Solide et MatériauxUMR CNRS 6226, Université de Rennes 1RennesFrance

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