TITLE

Production of Dense Yttria-Stabilized Zirconia Thin Films by Dip-Coating for IT-SOFC Application

AUTHOR(S)
Zhang, Yonglian; Gao, Jianfeng; Meng, Guangyao; Liu, Xingqin
PUB. DATE
June 2004
SOURCE
Journal of Applied Electrochemistry;Jun2004, Vol. 34 Issue 6, p637
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Yttria-stabilized zirconia (YSZ) thin films were prepared by conventional and modified dip-coating techniques followed by heating to an appropriate temperature in air. Scanning electron microscopy showed that films of the thickness ranging from 20 to 30 μm were dense and crack-free. The electrical properties of the films were investigated by ac impedance spectroscopy. La0.8Sr0.2MnO3 paste was printed on to a YSZ electrolyte/anode assembly to create single fuel cells which were tested in the temperature range 650–800 °C. The results showed that both open circuit voltage (OCV) and maximum power density values of the cells with electrolytes produced by the modified dip coating were higher than those fabricated by conventional processing. At 800 °C, the OCV reached 0.98 V and a maximum power density of 190 mW cm-2 was attained, demonstrating that the modified dip coating process is a simple and cost-effective fabrication technique for IT-SOFCs, though further improvement is necessary.
ACCESSION #
16781931

 

Related Articles

  • Size-effects on the optical properties of zirconium oxide thin films. Ramana, C. V.; Vemuri, R. S.; Fernandez, I.; Campbell, A. L. // Applied Physics Letters;12/7/2009, Vol. 95 Issue 23, p231905 

    Zirconium oxide (ZrO2) thin films with an average crystallite-size (L) ranging from 5 to 25 nm were grown by sputter deposition onto optical grade quartz substrates. The optical properties of grown ZrO2 films were evaluated using optical transmission and reflectance spectroscopic measurements....

  • Aging Effect of Atmospheric Air on Zirconia Surfaces Treated by Nonthermal Plasma. dos Santos, Daniela Micheline; Vechiato-Filho, Aljomar José; da Silva, Emily Vivianne Freitas; Coelho Goiato, Marcelo; Francisco Cesar, Paulo; Cipriano Rangel, Elidiane; da Cruz, Nilson Cristino // Journal of Adhesive Dentistry;2015, Vol. 17 Issue 5, p413 

    Purpose: The purpose of this study was twofold: 1) to characterize the zirconia (Y-TZP) surfaces through scanning electronic microscopy associated with energy-dispersive spectroscopy and atomic force microscopy after the deposition of a thin organosilicon film by nonthermal plasma (NTP)...

  • On the Properties of Yttria-Stabilized Zirconia Thin Films Prepared by Sol-Gel Method. ŽALGA, Artūras; ABAKEVIČIENĖ, Brigita; ŽARKOV, Aleksej; BEGANSKIENĖ, Aldona; KAREIVA, Aivaras; TAMULEVIČIUS, Sigitas // Materials Science / Medziagotyra;2011, Vol. 17 Issue 2, p191 

    The synthesis of nanostructured films of 20 mol% Y2O3 stabilized ZrO2 on corundum (Al2O3) substrates was performed from different sols using dip-coating technique. All obtained samples were repeatedly annealed at 800 °C temperature after each dipping procedure and fully characterized by X-ray...

  • EVALUATION OF STABILITY OF TARGET HOMEMADE BY EFFECT OF TEMPERATURE, POWER AND FLOW IN THE DEPOSITION OF ZIRCONIA STABILIZED 8% Y2O3 THIN FILMS WITH RF SPUTTERING. Palacios, D. R. Ortiz; Rojas, A. Reyes; Holguín, J. Reyes; Moller, J. A. Duarte; Esparza-Ponce, H. E. // International Journal of Materials Engineering & Technology;Jan2015, Vol. 13 Issue 1, p23 

    The solid oxide fuel cells work normally at high temperatures (600 to 1000°C) and it is necessary to reduce it. It can be reducing the thickness of electrolyte using zirconia thin films at 8% stabilized with yttria. In this work, targets of zirconia 8% with yttria were elaboratedand finally...

  • Microstructure and phase transformation of zirconia-based ternary oxides for thermal barrier coating applications. Xiao Huang; Zakurdaev, Andrey; Dongmei Wang // Journal of Materials Science;Apr2008, Vol. 43 Issue 8, p2631 

    Five dopant oxides, Sc2O3, Yb2O3, CeO2, Ta2O5, and Nb2O5, were incorporated into 7YSZ to create ternary zirconia-based oxides with varying oxygen vacancies and substitutional defects. These ternary oxides were consolidated using a high-temperature sintering process. The resulting bulk oxides...

  • Resistencia a la corrosión de películas cerámicas delgadas. Carbajal-De la Torre, G.; Espinosa-Medina, M. A.; Pacheco-Ibarra, J. J.; Ibarra-Bracamontes, L. A.; Galván, S. R.; Espitia Cabrera, M. I. // Superficies y Vacío;2011, Vol. 24 Issue 4, p121 

    In this work has proposed the synthesis and characterization of hybrid ceramic thin films produced by the base of polymethilmetacrylate (PMMA) and zirconium oxide (ZrO2), and titanium oxide (TiO2) for applications to corrosion protection. The synthesis of the inorganic phase was carried out by...

  • ZrO2-ZnO Composite Thin Films For Humidity Sensing. Velumani, M.; Meher, S. R.; Balakrishnan, L.; Sivacoumar, R.; Alex, Z. C. // AIP Conference Proceedings;2016, Vol. 1731 Issue 1, p1 

    ZrO2-ZnO composite thin films were grown by reactive DC magnetron sputtering. X-ray diffraction studies reveal the composite nature of the films with separate ZnO and ZrO2 phase. Scanning electron microscopy studies confirm the nanocrystalline structure of the films. The films were studied for...

  • Nanocrystalline ZrO2 thin films on silicon fabricated by pulsed-pressure metalorganic chemical vapor deposition (PP-MOCVD). Ramirez, L.; Mecartney, M. L.; Krumdieck, S. P. // Journal of Materials Research;Aug2008, Vol. 23 Issue 8, p23 

    ZrO2 films deposited on silicon (100) substrates using pulsed-pressure metalorganic chemical vapor deposition (PP-MOCVD) with zirconium n-propoxide (ZnP) Zr(OC3H7)4 were dense and fully crystalline for substrate temperatures of 500 to 700 °C. Film thicknesses were 40 to 815 nm thick, measured...

  • Development of Intermixed Zones of Alumina/Zirconia in Thermal Barrier Coating Systems. Stiger, M. J.; Yanar, N. M.; Jackson, R. W.; Laney, S. J.; Pettit, F. S.; Meier, G. H.; Gandhi, A. S.; Levi, C. G. // Metallurgical & Materials Transactions. Part A;Apr2007, Vol. 38 Issue 4, p848 

    The mechanisms whereby intermixed zones of alumina and zirconia are formed at the interface between the metallic bond coat and the ceramic top coat (yttria-stabilized zirconia) in thermal barrier coating systems have been investigated. The results lead to the following mechanism for the...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics