欢迎登录材料期刊网

材料期刊网

高级检索

本文采用水系浆料流延成型法制备固体氧化物燃料电池SOFC的电解质材料(8%摩尔分数Y2O3,稳定的ZrO2,下称8YSZ)薄膜,研究了三种不同类型的分散剂对8YSZ浆料稳定性的影响.通过优化pH值和分散剂用量等因素,使浆料的稳定性达到最佳,获得固相含量高达62%质量分数的适合流延的8YSZ水系浆料.以该浆料为原料,采用流延的方法成型8YSZ薄膜,获得了显微结构均匀、相对密度达49.4%、表面光滑、无裂纹、柔韧性好、干燥后厚度为50 μm左右的薄膜素坯.该素坯在1350℃保温4 h烧结得到相对密度大于96%的致密8YSZ烧结薄膜.

参考文献

[1] Snijkera F;De Wilde A;Mullens S et al.Aqueous Tape Casting of Yttria Stabilised Zirconia Using Natural Product Binder[J].Journal of the European Ceramic Society,2004,24:1107-1110.
[2] Hotza D;Greil P .Review:Aqueous Tape Casting of Ceramic Powders[J].Materials Science and Engineering,1995,A202:206-217.
[3] Scott A. Uhland;Richard K. Holman;Sherry Morissette .Strength of Green Ceramics with Low Binder Content[J].Journal of the American Ceramic Society,2001(12):2809-2818.
[4] J. Gurauskis;A.J. Sanchez-Herencia;C. Baudin .Al_2O_3/Y-TZP and Y-TZP materials fabricated by stacking layers obtained by aqueous tape casting[J].Journal of the European Ceramic Society,2006(8):1489-1496.
[5] Suman Chatterjee;Sengupta K;Maitih H S .A Miniature PTC Thermistor Based Sensor Element Fabricated by Tape Casting Technique[J].Sensors and Actuators B:Chemical,1999,60:155-160.
[6] Montinaro D;Sglavo VM;Bertoldi M;Zandonella T;Arico A;Lo Faro M;Antonucci V .Tape casting fabrication and co-sintering of solid oxide "half cells" with a cathode-electrolyte porous interface[J].Solid state ionics,2006(19/25):2093-2097.
[7] Navarro A;Alcock J R;Whatmore R W .Aqueous Colloidal Processing and Green Sheet Properties of Lead Zirconate Titanatc (PZT) Ceramics Made by Tape Casting[J].Journal of the European Ceramic Society,2004,24:1073-1076.
[8] Jiang Liu;Scott A. Barnett .Thin Yttrium-Stabilized Zirconia Electrolyte Solid Oxide Fuel Cells by Centrifugal Casting[J].Journal of Food Quality,2002(12):3096-3098.
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:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%