Spiridigliozzi, Luca Ferone, Claudio Cioffi, Raffaele Accardo, Grazia Frattini, Domenico Dell'Agli, Gianfranco 2024-01-19T18:03:55Z 2024-01-19T18:03:55Z 2022-01-25 2020-02 1996-1944 https://pubs.kist.re.kr/handle/201004/118981 Entropy-Stabilized Oxides (ESO) is a modern class of multicomponent advanced ceramic materials with attractive functional properties. Through a five-component oxide formulation, the configurational entropy is used to drive the phase stabilization over a reversible solid-state transformation from a multiphase to a single-phase state. In this paper, a new transition metal/rare earth entropy-stabilized oxide, with composition Ce0.2Zr0.2Y0.2Gd0.2La0.2O2-delta, was found after several investigations on alternative candidate systems. X-Ray Diffraction (XRD) analyses of calcined powders pointed out different behavior as a function of the composition and a single-phase fluorite structure was obtained after a specific thermal treatment at 1500 degrees C. Powders presented the absence of agglomeration, so that the sintered specimen exhibited sufficient densification with a small porosity, uniformly distributed in the sample. English MDPI Entropy-Stabilized Oxides owning Fluorite Structure obtained by Hydrothermal Treatment Article 10.3390/ma13030558 1 MATERIALS, v.13, no.3 MATERIALS 13 3 N scie scopus 000515503100065 2-s2.0-85079224418 Chemistry, Physical Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Physics, Applied Physics, Condensed Matter Chemistry Materials Science Metallurgy & Metallurgical Engineering Physics Article entropy-stabilized oxides hydrothermal treatment fluorite structure