PROCESSING AND PROPERTIES OF ZIRCONIA-BASED AL2O3 NANOSCALE-COMPOSITES AS ELECTROLYTES FOR SOLID OXIDE FUEL-CELLS/

Citation
P. Duran et al., PROCESSING AND PROPERTIES OF ZIRCONIA-BASED AL2O3 NANOSCALE-COMPOSITES AS ELECTROLYTES FOR SOLID OXIDE FUEL-CELLS/, European journal of solid state and inorganic chemistry, 32(10), 1995, pp. 963-975
Citations number
23
Categorie Soggetti
Chemistry Inorganic & Nuclear
ISSN journal
09924361
Volume
32
Issue
10
Year of publication
1995
Pages
963 - 975
Database
ISI
SICI code
0992-4361(1995)32:10<963:PAPOZA>2.0.ZU;2-Z
Abstract
The morphology and particle size of yttria (3 and 8 mol%)-doped zircon ia/alumina (0 to 20 wt%) coprecipitated powders were studied using mea surements of surface area, X-ray diffraction, DTA, infrared spectrosco py, and TEM. Shrinkage behaviour of the isopressed composites was stud ied by isothermal and non-isothermal experiments. The effect of Al2O3 content on the microhardness (H) and fracture toughness (K-IC) of zirc onia/Al2O3 composites was studied by the Vicker's indentation techniqu e. The influence of Al2O3 addition (10 wt%) on the electrical properti es of tetragonal/Al2O3, and cubic zirconia/Al2O3 composites also was s tudied.