Ceria-yttria-stabilized zirconia composite ceramic systems for applications as low-temperature electrolytes
SCIE
SCOPUS
- Title
- Ceria-yttria-stabilized zirconia composite ceramic systems for applications as low-temperature electrolytes
- Authors
- Tompsett, GA; Sammes, NM; Yamamoto, O
- Date Issued
- 1997-12
- Publisher
- Wiley
- Abstract
- Ceramic samples of Ce1-xGdxO2-y and yttria-stabilized zirconia (YSZ) were prepared using solid-state methods. Polished faces of disks of these materials were held in intimate contact in a reaction cell at temperatures ranging from 1000 degrees to 1300 degrees C for durations up to 72 h. XRD, SEM, and microprobe Raman techniques were used to analyze the resulting reactions and ion diffusion. No reaction was observed at 1000 degrees C after 72 h between the 10-mol%- and 20-mol%-Gd-doped CeO2 and the YSZ. However, at 1300 degrees C, a mixing region 25 mu m wide occurred, resulting in a cubic phase, where Zr4+ ions diffused into the CeO2.
- Keywords
- OXIDE FUEL-CELL; SOLID ELECTROLYTE; RAMAN
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/15286
- ISSN
- 0002-7820
- Article Type
- Article
- Citation
- JOURNAL OF THE AMERICAN CERAMIC SOCIETY, vol. 80, no. 12, page. 3181 - 3186, 1997-12
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