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FAST SOLUTION SYNTHESIS OF NIO-GD0.1CE0.9O1.95 NANOCOMPOSITE VIA DIFFERENT APPROACH: INFLUENCE OF PROCESSING PARAMETERS AND CHARACTERIZATIONS

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dc.creatorCHRISTOPHER GONZALO SALVO MEDALLA
dc.date2021
dc.date.accessioned2025-01-10T15:20:08Z
dc.date.available2025-01-10T15:20:08Z
dc.date.issued2021
dc.description.abstractTHE SYNTHESIS OF THE NICKEL OXIDE-GADOLINIUM DOPED CERIA (NIO-GDC WITH 65:35 WT. %) NANOCOMPOSITE POWDERS WITH A STOICHIOMETRY OF GD0.1CE0.9O1.95 WAS PERFORMED VIA FAST SOLUTION COMBUSTION TECHNIQUE; USING THREE DIFFERENT MIXING METHODS: (I) CM (METAL CATIONS IN AN AQUEOUS SOLUTION), (II) HM (HAND MORTAR), AND (III) BM (BALL MILLING). THE NANOCOMPOSITE POWDERS WERE CALCINED AT 700 °C FOR 2 H AND CHARACTERIZED BY TRANSMISSION ELECTRON MICROSCOPY (TEM), X-RAY FLUORESCENCE (XRF), AND X-RAY DIFFRACTION XRD. THE TEM AND XRD ANALYSES EVIDENCED THE WELL-DISPERSED NIO AND GDC CRYSTALLITES WITH THE ABSENCE OF SECONDARY PHASES, RESPECTIVELY. LATER, THE CALCINED POWDERS (NIO-GDC NANOCOMPOSITES) WERE COMPACTED AND SINTERED AT 1500 °C FOR 2 H. THE MICROHARDNESS OF THE SINTERED NANOCOMPOSITES VARIES IN ACCORDANCE WITH THE SYNTHESIS APPROACH: A HIGHER MICROHARDNESS OF 6.04 GPA WAS OBTAINED FOR NANOCOMPOSITES SYNTHESIZED THROUGH CM, WHILE 5.94 AND 5.41 GPA WERE OBTAINED FOR BALL-MILLING AND HAND-MORTAR APPROACH, RESPECTIVELY. FURTHERMORE, IT WAS OBSERVED THAT REGARDLESS OF THE LONG TIME-CONSUMING BALL-MILLING PROCESS WITH RESPECT TO THE HAND MORTAR, THERE WAS NO SIGNIFICANT IMPROVEMENT IN THE ELECTRICAL PROPERTIES.
dc.formatapplication/pdf
dc.identifier.doi10.3390/ma14123437
dc.identifier.issn1996-1944
dc.identifier.issn1996-1944
dc.identifier.urihttps://repositorio.ubiobio.cl/handle/123456789/11526
dc.languagespa
dc.publisherMATERIALS
dc.relation.uri10.3390/ma14123437
dc.rightsPUBLICADA
dc.titleFAST SOLUTION SYNTHESIS OF NIO-GD0.1CE0.9O1.95 NANOCOMPOSITE VIA DIFFERENT APPROACH: INFLUENCE OF PROCESSING PARAMETERS AND CHARACTERIZATIONS
dc.typeARTÍCULO
dspace.entity.typePublication
ubb.EstadoPUBLICADA
ubb.Otra ReparticionDEPARTAMENTO DE INGENIERIA MECANICA
ubb.SedeCONCEPCIÓN
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