Metallurgical and Materials Transactions A

, Volume 44, Issue 1, pp 395–405 | Cite as

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

  • Marta DiasEmail author
  • Patrícia Almeida Carvalho
  • Marcel Bohn
  • Olivier Tougait
  • Henri Noël
  • António Pereira Gonçalves


The liquidus projection at the boron-rich corner of the B-Fe-U phase diagram is proposed based on powder X-ray diffraction measurements, heating curves, and scanning electron microscopy observations, complemented with both energy dispersive X-ray spectroscopy and electron probe microanalysis. Evidence for six ternary reactions is presented, the corresponding 12 monovariant lines are drawn, and the nature and location of the ternary reactions are given. The ternary compounds existing in this region of the B-Fe-U ternary phase diagram, UFeB4 and UFe2B6, were confirmed to be formed by ternary peritectic reactions, yet UFeB4 has a considerably larger primary crystallization field, which points to an easier preparation of single crystals of this compound, when compared with UFe2B6.


Energy Dispersive Spectroscopy Liquidus Projection Ternary Eutectic Heating Curf Crystallization Field 
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 study 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

  • Marta Dias
    • 1
    • 2
    Email author
  • Patrícia Almeida Carvalho
    • 2
  • Marcel Bohn
    • 3
  • Olivier Tougait
    • 4
  • Henri Noël
    • 4
  • António Pereira Gonçalves
    • 1
  1. 1.Instituto Tecnológico e Nuclear, Instituto Superior TécnicoUniversidade Técnica de LisboaSacavémPortugal
  2. 2.ICEMS, Departamento de BioengenhariaInstituto Superior TécnicoLisbonPortugal
  3. 3.Departement DRO/Geosciences MarinesIfremer Centre de BrestPlouzaneFrance
  4. 4.Institut des Sciences Chimiques de Rennes, Chemie du Solide et Matériaux, UMR CNRS 6226Université de Rennes 1RennesFrance

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