Abstract
A porous coating process is presented for solid oxide fuel cell electrodes that reduce manufacturing costs and production time. The process used aluminum as a pore-former for creating anisotropic mille-feuille-like porosity in plasma-sprayed 3.9 mol.% yttria-stabilized zirconia (3.9YSZ) coatings. After etching, almost no aluminum phase can be detected by X-ray diffraction and the porous coating hardness decreases to below 40 HR15Y. A porosity of between 44.5 and 50.4 vol.% is obtained in the etched porous plasma-sprayed coating. Most of the monoclinic phase originally in the 3.9YSZ feedstock powder is suppressed after plasma spraying.
| Original language | English |
|---|---|
| Pages (from-to) | 186-192 |
| Number of pages | 7 |
| Journal | Journal of the Ceramic Society of Japan |
| Volume | 120 |
| Issue number | 1401 |
| DOIs | |
| Publication status | Published - 2012 |
All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- General Chemistry
- Condensed Matter Physics
- Materials Chemistry