Escudo de la República de Colombia
Sistema Nacional de Biliotecas - Repositorio Institucional Universidad Nacional de Colombia Biblioteca Digital - Repositorio Institucional UN Sistema Nacional de Bibliotecas UN

Microstructure and electrical properties of solid electrolytes of fully stabilized zirconia with rare earth mixed oxides

Muñoz Meneses, Rodrigo Arbey and Cajas-Daza, Paola Cristina and Narvaez-Semanate, Jose Luis and Moreira-da Silva, Cosme Roberto (2016) Microstructure and electrical properties of solid electrolytes of fully stabilized zirconia with rare earth mixed oxides. DYNA, 83 (196). pp. 168-175. ISSN 2346-2183

Texto completo

[img]
Vista previa
PDF - Versión Publicada
Available under License Creative Commons Attribution Non-commercial No Derivatives.

3MB

URL oficial: https://revistas.unal.edu.co/index.php/dyna/articl...

Resumen

In this work was obtained solid electrolytes of fully stabilized zircônia with doped of 10 and 12 mol% of Re2O3 (mixed oxides rare earth), for use in oxygen sensors and or fuel cells. The specimens were prepared by uniaxial pressing and sintered using two heating schedules, S1 and S2. Impedance diagrams show that the crystalline phases and the grain size change the electrical behavior of the ceramics. The sample with the best electrical performance was obtained with 10 mol% doped and was sintered with the curve S1. The value of the total conductivity of this sample was 2,85x10-3 W-1.cm-1 (taken at 600 ° C). When making a comparison between this values of conductivity with the reported in the literature is identified similarity with or traditional system zirconia-yttria the most widely used commercially as electrolyte oxygen sensors and fuel cells, confirming the potential use of the oxides mixed rare earth for these specific applications.

Tipo de documento:Artículo - Article
Palabras clave:Oxygen sensor, Grain growth, Grain boundaries, Solid oxide fuel cells, Sintering temperature, Electrical impedance
Temática:6 Tecnología (ciencias aplicadas) / Technology > 62 Ingeniería y operaciones afines / Engineering
Unidad administrativa:Revistas electrónicas UN > Dyna
Código ID:58893
Enviado por : Dirección Nacional de Bibliotecas STECNICO
Enviado el día :31 Oct 2017 17:20
Ultima modificación:27 Noviembre 2017 22:04
Ultima modificación:27 Noviembre 2017 22:04
Exportar:Clic aquí
Estadísticas:Clic aquí
Compartir:

Solamente administradores del repositorio: página de control del ítem

Vicerrectoría de Investigación: Número uno en investigación
Indexado por:
Indexado por Scholar Google WorldCat DRIVER Registry of Open Access Repositories OpenDOAR Metabiblioteca BDCOL OAIster Red de repositorios latinoamericanos DSpace BASE Open archives La referencia Colombiae Open Access Theses and Dissertations Tesis latinoamericanas CLACSO
Este sitio web se ve mejor en Firefox