- -

Effect of microstructure on electrical and mechanical properties of La5.4WO12-delta proton conductor

RiuNet: Repositorio Institucional de la Universidad Politécnica de Valencia

Compartir/Enviar a

Citas

Estadísticas

  • Estadisticas de Uso

Effect of microstructure on electrical and mechanical properties of La5.4WO12-delta proton conductor

Mostrar el registro sencillo del ítem

Ficheros en el ítem

Thumbnail
Nombre: DeibertStournariI ...
Tamaño: 2.034Mb
Formato: PDF
Descripción: Versión del Autor.
Abrir
Thumbnail
Nombre: 1-s2.0-S095522191 ...
Tamaño: 4.953Mb
Formato: PDF
Descripción: Versión editorial
Abrir
dc.contributor.author Deibert, Wendelin es_ES
dc.contributor.author Stournari, Vasiliki es_ES
dc.contributor.author Ivanova, Mariya E. es_ES
dc.contributor.author Escolástico Rozalén, Sonia es_ES
dc.contributor.author Serra Alfaro, José Manuel es_ES
dc.contributor.author Malzbender, Juergen es_ES
dc.contributor.author Beck, Tilman es_ES
dc.contributor.author Singheiser, Lorenz es_ES
dc.contributor.author Guillon, Olivier es_ES
dc.contributor.author Meulenberg, Wilhelm A. es_ES
dc.date.accessioned 2022-12-01T19:01:08Z
dc.date.available 2022-12-01T19:01:08Z
dc.date.issued 2018-08 es_ES
dc.identifier.issn 0955-2219 es_ES
dc.identifier.uri http://hdl.handle.net/10251/190458
dc.description.abstract [EN] The relationships between microstructural characteristics and electrical as well as mechanical properties of La5.4WO12-delta (LWO54) materials were studied. Polycrystalline LWO54 samples revealed identical transport mechanisms regardless of the sample microstructure. The studied samples show predominately proton conductor behaviour below 800 degrees C and become predominant n-type and oxygen ion conductors above this temperature. The magnitude of the total conductivity is enhanced with larger grain size and lower porosity. Young's modulus decreased by 20% with increasing temperature up to 1000 degrees C regardless of grain size and atmosphere. Fracture strength was determined via ring-on-nng bending tests, yielding values that strongly depended on microstructural characteristics and homogeneity of the microstructure. Elevated temperature deformation studies revealed that creep is governed by cation diffusion mechanism. es_ES
dc.description.sponsorship This work was conducted thanks to the financial support by the Helmholtz Association, Initiative and Networking Fund, MEM-BRAIN Portfolio and POFIII. The colleagues from ZEA-3 are acknowledged for performing the ICP-OES analysis. We would like to thank Ms. Tatjana Osipova for the mechanical testing and Dr. Egbert Wessel for the SEM studies es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Journal of the European Ceramic Society es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject Proton-Conducting ceramic membranes es_ES
dc.subject Lanthanum tungstate es_ES
dc.subject Mechanical properties es_ES
dc.subject Conductivity es_ES
dc.subject Strength es_ES
dc.subject Creep es_ES
dc.title Effect of microstructure on electrical and mechanical properties of La5.4WO12-delta proton conductor es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.jeurceramsoc.2018.04.009 es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario Mixto de Tecnología Química - Institut Universitari Mixt de Tecnologia Química es_ES
dc.description.bibliographicCitation Deibert, W.; Stournari, V.; Ivanova, ME.; Escolástico Rozalén, S.; Serra Alfaro, JM.; Malzbender, J.; Beck, T.... (2018). Effect of microstructure on electrical and mechanical properties of La5.4WO12-delta proton conductor. Journal of the European Ceramic Society. 38(10):3527-3538. https://doi.org/10.1016/j.jeurceramsoc.2018.04.009 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.jeurceramsoc.2018.04.009 es_ES
dc.description.upvformatpinicio 3527 es_ES
dc.description.upvformatpfin 3538 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 38 es_ES
dc.description.issue 10 es_ES
dc.relation.pasarela S\360065 es_ES


Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem