bei Google ScholarTitelangaben
Neukam, Matthias ; Panneerselvam, Marudhachalam ; Willert-Porada, Monika:
Material Development and Processing of Multiscale Structured Ceramics for SOFC-Electrodes.
In: Paulino, Glaucio H.
(Hrsg.):
Multiscale and functionally graded materials : proceedings of the international conference, FGM IX, Oahu Island, Hawaii, 15-18 October 2006. -
Melville, N.Y.
: American Institute of Physics
,
2008
. - S. 748-753
. - (AIP Conference Proceedings
; 973
)
ISBN 978-0-7354-0492-2
DOI: https://doi.org/10.1063/1.2896875
Abstract
NiO-ZrO₂-cermets are used as anode material in Solid Oxide Fuel Cells. A sub-structured cermet consisting aligned lamella of NiO and 8Y-ZrO₂ is obtained by melt processing of a eutectic powder mixture. Direct co-firing of such cermet powders with the ceramic electrolyte layer requires sintering temperatures above 1600 °C and leads to redistribution of NiO. Sintering with AlN as reactive component for in-situ formation of cubic ZrxOyNz, promotes joining of the sub-structured anode material with the solid electrolyte via the ionic conductive 8Y-ZrO₂-grains at 1400-1550 °C. By decomposition of the Zr-oxynitride upon cooling, new porosity and the desired connectivity between the anode and the solid electrolyte is formed. A graded composite is obtained at an interface, which consists of e.g., ZrO₂, Zr7O9.5N3, beta-ZrAlON, NiAl2O4 and Ni, depending upon the sintering temperature.
Weitere Angaben
| Publikationsform: | Aufsatz in einem Buch |
|---|---|
| Begutachteter Beitrag: | Ja |
| Keywords: | Solid-oxide fuel cells; Ceramics in electrochemistry; Electrodes; Material processing; Porous materials; Granular materials |
| Institutionen der Universität: | Fakultäten > Fakultät für Ingenieurwissenschaften Fakultäten > Fakultät für Ingenieurwissenschaften > Ehemalige Professoren > Lehrstuhl Werkstoffverarbeitung - Univ.-Prof. Dr. Monika Willert-Porada Fakultäten Fakultäten > Fakultät für Ingenieurwissenschaften > Ehemalige Professoren |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik > 500 Naturwissenschaften 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften |
| Eingestellt am: | 04 Sep 2017 12:41 |
| Letzte Änderung: | 04 Sep 2017 12:41 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/14528 |