Résumé
Ultrafine powders with applicability in solid oxide fuel cells (SOFCs) were prepared by a novel method based on a polyacrylamide gel-combustion process: Zr0.84Y0.16O1.92 (8YSZ), Ce0.8Gd0.2O1.9 (CGO), La0.9Sr0.1Ga0.8Mg0.2O2.85 (LSGM), La2Mo2O9, La0.8Sr0.2CoO3-δ (LSC) and La0.8Sr0.2FeO3-δ (LSF). Synthesized powders present desirable characteristics for powder consolidation and sintering, including nanometric crystal size (10-40 nm), narrow size distribution and the possibility of aggregate disagglomeration via soft ball milling. A classical screen-printing method is presented as a novel thin dense layer deposition technique. First results on deposition of quasi-full-density thin films of 8YSZ (around 5 μm thick) were obtained at a sintering temperature of 1300 °C with sintering times of 10 h in air.
| langue originale | Anglais |
|---|---|
| Pages (de - à) | 256-264 |
| Nombre de pages | 9 |
| journal | Journal of Power Sources |
| Volume | 118 |
| Numéro de publication | 1-2 |
| Les DOIs | |
| état | Publié - 25 mai 2003 |
| Modification externe | Oui |
| Evénement | Scientific Advances in Fuel Cell Systems - Amsterdam, Pays-Bas Durée: 25 sept. 2002 → 26 sept. 2002 |
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