Reinvestigation of the Ce–Co–Al ternary system: Isothermal section at 973 K

N. Nasri; J. Gastebois; M. Pasturel; B. Belgacem; I. Péron; F. Gouttefangeas; R. Ben Hassen; O. Tougait; H Noël

doi:10.1016/j.jallcom.2014.12.184

Journal articles

Reinvestigation of the Ce–Co–Al ternary system: Isothermal section at 973 K

N. Nasri J. Gastebois ¹ M. Pasturel ¹ B. Belgacem ² I. Péron ³ F. Gouttefangeas ⁴ R. Ben Hassen O. Tougait ¹ H Noël ¹

1 ISCR - Institut des Sciences Chimiques de Rennes

2 ISSBAT - Unité de Recherche de Chimie des Matériaux

3 C.M.E.B.A. - Centre de Microscopie Electronique à Balayage et microAnalyse

4 C.M.E.B.A. - Centre de Microscopie Electronique à Balayage et Microanalyse

Abstract : The Ce–Co–Al ternary phase diagram has been reinvestigated at 973 K by means of powder X-ray diffraction, scanning electron microscopy, energy dispersive spectroscopy and differential thermal analyses. It contains 5 ternary phases (CeCo2Al8, Ce2Co6Al19, CeCoAl4, Ce3Co3Al4 and CeCoAl) as well as 7 extensions in the ternary field of pseudo-binaries (CeAl2−xCox with 0 ⩽ x ⩽ 0.18; CeCo2−xAlx with 0 ⩽ x ⩽ 0.21; CeCo3−yAly with 0 ⩽ y ⩽ 0.20; Ce2Co7−xAlx with 0 ⩽ x ⩽ 0.73; Ce5Co19−yAly with 0 ⩽ y ⩽ 0.20; CeCo5−xAlx with 0 ⩽ x ⩽ 0.71 and Ce2Co17−yAly with 0 ⩽ y ⩽ 2.2). Two liquid areas are present at the Al and Ce-rich corners of this isothermal section

Keywords : X-ray diffraction Thermal analysis Scanning electron microscopy Intermetallics

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Journal articles

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Chemical Sciences

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Reinvestigation of the Ce–Co–Al ternary system: Isothermal section at 973 K

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Reinvestigation of the Ce–Co–Al ternary system: Isothermal section at 973 K

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