Yttria stabilized zirconia (YSZ) has widely been used as electrolyte in solid oxide fuel cell (SOFC).The microstructure of YSZ related to the fabrication process was discussed in the paper.With YSZ nano-powders about 40-100 nm as raw material, the YSZ adobe was manufactured by tape calendering process.The named three-step sintering process was performed at 1000 ℃ for 2 h, then raised the temperature with normal rate and as soon as up to 1400 ℃, the furnace was controlled at 1250-1300 ℃ for 10-20 h.The high dense YSZs with the relative density of 96%-99% were obtained; the grain size of YSZ could be reduced to 0.5-3 μm.The above result is benefited to co-fired in the electrode-supported SOFCs.
参考文献
| [1] | Minh N Q;Takahashi T.Science and Technology of Ceramic Fuel Cells[M].Amsterdam:Elsevier,1995 |
| [2] | Steele B C.High conductivity solid ionic conductors[A].Singapore,1989 |
| [3] | Stevenson J.W.;Hasinska K. .Influence of Cobalt and Iron Additions on the Electrical and Thermal Properties of (La,Sr)(Ga,Mg)O3[J].Journal of the Electrochemical Society,2000(9):3213-3218. |
| [4] | Bao Weitao;Chang Qibing;Meng Guangyao .Effect of NiO/YSZ compositions on the co-sintering process of anode-supported fuel cell[J].Journal of Membrane Science,2005,259:103. |
| [5] | Basu Rajendra N;Blass Günter .Simplified processing of anode-supported thin film planar solid oxide fuel cells[J].Journal of the European Ceramic Society,2005,25:463. |
| [6] | Himeko Orui;Kimitaka Watanabe;Masayasu Arakara .Electrochemical characteristics of tubular flat-plate-SOFCs fabricated by co-firing cathode substrate and electrolyte[J].Journal of Power Sources,2002,112:90. |
| [7] | Yamahara K;Jacobson CP;Visco SJ;De Jonghe LC .Catalyst-infiltrated supporting cathode for thin-film SOFCs[J].Solid state ionics,2005(5/6):451-456. |
| [8] | Singhal Subhash C;Kendall Kevin.High Temperature Solid Oxide Fuel Cells:Fundamentals,Design and Applications[M].Elevier Ltd,2003:103. |
| [9] | Shi J L;Ruan M L;Yen T S .Crystallite growth in yttria-doped superfine zirconia powders and their compacts:a comparison between Y-TZP and YSZ[J].Ceramics International,1996,22:137. |
| [10] | Han Minfang;Peng Suping;Sun Zaihong.Manufacture processing and properties of stabilized ZrO2 ultra fine powders for SOFC[A].北京,2001 |
| [11] | Yin Huiyan;Han Minfang.Manifestation of grain characteristics of nanocrystalline ZrO2 powders[A].成都,2005:211-212. |
| [12] | Minfang Han,Lijun Huo,Botao Li,Suping Peng.Relation between powder size and electrolyte properties in nano YSZ system[J].北京科技大学学报（英文版）,2005(01):78-80. |
| [13] | HAN Min-fang,LI Bo-tao,PENG Su-ping.Manufacture Process of 8Y2O3 Stabilized ZrO2 from Nano Powders[J].武汉理工大学学报(材料科学版)英,2004(03):10-13. |
| [14] | Han Minfang;Peng Suping;Li Botao .Grain characters and sintering properties of YSZ nanocrystalline powders[J].Rare metals materials and Engineering,2003,32:491. |
| [15] | Harmer M P;Brook R J .Fast firing-microstructure benefits[J].J Brit Ceram Soc,1980,80(05):147. |
| [16] | Chen I W;Wang X H .Sintering dense nanocrystalline ceramics without final-stage grain growth[J].Nature,2000,404:168. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%