摘要
A porous coating process for direct-oxidation solid oxide fuel cell (SOFC) electrodes that reduces manufacturing costs and production time is proposed. The process uses Al alloy-polyester as a pore former to create a mille-feuille structure and high porosity in plasma-sprayed 3.9mol% yttria-stabilized zirconia (3.9YSZ) coatings. With an insufficient amount of pore former (35vol.%), the as-sprayed coating surface has a higher surface roughness (Ra=12-13μm). When a sufficient amount of pore former (50vol.%) is used, the as-sprayed coating surface roughness (Ra) is 10-11μm. Apparent porosities in the range of 41.2 to 56.4vol.% are obtained for the etched and burned plasma sprayed coating. The porosity created with a sufficient amount of pore former (50vol.%) is significantly higher than that created with an insufficient amount (35vol.%). The monoclinic phase originally in the 3.9YSZ feedstock powder almost completely disappears after plasma spraying.
| 原文 | English |
|---|---|
| 頁（從 - 到） | 132-139 |
| 頁數 | 8 |
| 期刊 | Surface and Coatings Technology |
| 卷 | 228 |
| DOIs | |
| 出版狀態 | Published - 2013 八月 15 |
指紋
All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Condensed Matter Physics
- Surfaces and Interfaces
- Surfaces, Coatings and Films
- Materials Chemistry
引用此文
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Plasma-sprayed 3.9YSZ porous coatings with mille-feuille structure and high composite porosity for SOFC applications. / Wu, Hann Pyng; Fung, Kuan Zong.
於: Surface and Coatings Technology, 卷 228, 15.08.2013, p. 132-139.研究成果: Article
TY - JOUR
T1 - Plasma-sprayed 3.9YSZ porous coatings with mille-feuille structure and high composite porosity for SOFC applications
AU - Wu, Hann Pyng
AU - Fung, Kuan Zong
PY - 2013/8/15
Y1 - 2013/8/15
N2 - A porous coating process for direct-oxidation solid oxide fuel cell (SOFC) electrodes that reduces manufacturing costs and production time is proposed. The process uses Al alloy-polyester as a pore former to create a mille-feuille structure and high porosity in plasma-sprayed 3.9mol% yttria-stabilized zirconia (3.9YSZ) coatings. With an insufficient amount of pore former (35vol.%), the as-sprayed coating surface has a higher surface roughness (Ra=12-13μm). When a sufficient amount of pore former (50vol.%) is used, the as-sprayed coating surface roughness (Ra) is 10-11μm. Apparent porosities in the range of 41.2 to 56.4vol.% are obtained for the etched and burned plasma sprayed coating. The porosity created with a sufficient amount of pore former (50vol.%) is significantly higher than that created with an insufficient amount (35vol.%). The monoclinic phase originally in the 3.9YSZ feedstock powder almost completely disappears after plasma spraying.
AB - A porous coating process for direct-oxidation solid oxide fuel cell (SOFC) electrodes that reduces manufacturing costs and production time is proposed. The process uses Al alloy-polyester as a pore former to create a mille-feuille structure and high porosity in plasma-sprayed 3.9mol% yttria-stabilized zirconia (3.9YSZ) coatings. With an insufficient amount of pore former (35vol.%), the as-sprayed coating surface has a higher surface roughness (Ra=12-13μm). When a sufficient amount of pore former (50vol.%) is used, the as-sprayed coating surface roughness (Ra) is 10-11μm. Apparent porosities in the range of 41.2 to 56.4vol.% are obtained for the etched and burned plasma sprayed coating. The porosity created with a sufficient amount of pore former (50vol.%) is significantly higher than that created with an insufficient amount (35vol.%). The monoclinic phase originally in the 3.9YSZ feedstock powder almost completely disappears after plasma spraying.
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U2 - 10.1016/j.surfcoat.2013.04.019
DO - 10.1016/j.surfcoat.2013.04.019
M3 - Article
AN - SCOPUS:84879460721
VL - 228
SP - 132
EP - 139
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
SN - 0257-8972
ER -