Universidad de Zaragoza Repository

Resumen: Ca3Co4-xNixO9 (x=0.01, 0.03, and 0.05) polycrystalline thermoelectric ceramics have been prepared by the classical solid state method. As a result of the Ni addition an increase in porosity has been detected. Moreover, the presence of Ni has been related with the increase of Ca2Co3O6 secondary phase and the appearance of a new NiO-CoO solid solution. However, for the 0.01-Ni doped samples an improvement in the thermoelectric performances has been measured. This effect has been related with a decrease in the resistivity values and an increase in the Seebeck coefficient. The raise in the power factor for the 0.01-Ni doped samples, compared with the undoped ones, is between 10 and 25% at 50 and 800 °C respectively. Moreover, the maximum power at 800 °C, around 0.25 mW/K2.m, is significantly higher than the best results obtained in Ni doped samples reported previously in the literature.
Idioma: Inglés
DOI: 10.1016/j.bsecv.2015.02.004
Año: 2015
Publicado en: BOLETIN DE LA SOCIEDAD ESPANOLA DE CERAMICA Y VIDRIO 54, 1 (2015), 21-27
ISSN: 0366-3175
Factor impacto JCR: 0.28 (2015)
Categ. JCR: MATERIALS SCIENCE, CERAMICS rank: 26 / 27 = 0.963 (2015) - Q4 - T3
Financiación: info:eu-repo/grantAgreement/ES/DGA/T12
Financiación: info:eu-repo/grantAgreement/ES/DGA/T87
Financiación: info:eu-repo/grantAgreement/ES/MINECO/MAT2013-46505-C3-1-R
Tipo y forma: Article (Published version)
Área (Departamento): Expresión Gráfica de la Ingeniería (Departamento de Ingeniería de Diseño y Fabricación)
Área (Departamento): Ciencia de los Materiales e Ingeniería Metalúrgica (Departamento de Ciencia y Tecnología de Materiales y Fluidos)

You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. If you remix, transform, or build upon the material, you may not distribute the modified material.

0
Exportado de SIDERAL (2016-07-26-14:06:22)

Este artículo se encuentra en las siguientes colecciones:
Articles > Artículos por área > Ciencia de los Materiales e Ingeniería Metalúrgica
Articles > Artículos por área > Expresión Gráfica de la Ingeniería

Visitas