Ni-YSZ self-supported films by gel electrophoresis
Ni-YSZ self-supported films by gel electrophoresis
复制标题
凝胶电泳法制备 Ni-YSZ 自支撑薄膜
DOI：
10.1016/j.ceramint.2004.09.014
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发表时间：
2005
影响因子：
5.2
通讯作者：
R. Moreno
中科院分区：
文献类型：
--
作者：
B. Ferrari;I. Francisco;R. Moreno
本文报道了用胶体法制备燃料电池用金属陶瓷自支撑薄膜。Ni和Ni- ysz（带30卷）通过将水悬浮液中的电泳沉积与卡拉胶的热凝胶特性相结合，制备了% YSZ)自支撑膜。在加热时除去的石墨电极上进行沉积。研究了悬浮液固体负载和胶凝剂浓度对悬浮液流变学和电泳沉积（EPD）性能的影响，以及沉积动力学以优化沉积形成。形成的沉积物在800℃的空气中进行处理，使石墨燃尽，并在1100 ~ 1400℃的还原性N2/10% H2atmosphere中进一步烧结。得到了相分布均匀的多孔膜。
The manufacturing of metal–ceramic self-supported films by a colloidal process for fuel cell applications is reported. Ni and Ni-YSZ (with 30vol.% YSZ) self-supported films have been prepared by combining electrophoretic deposition in water suspensions with thermogelling properties of carrageenan. Deposition is carried out on graphite electrodes which are removed on heating. The effect of the suspension solids loading and the concentration of gelling binder on the suspension rheology and electrophoretic deposition (EPD) performance are studied, as well as the deposition kinetics to optimize the deposit formation. Formed deposits are treated in air at 800°C for graphite burning out and further sintered in reducing N2/10% H2atmosphere at temperatures ranging from 1100 to 1400°C. Porous films with homogeneous distribution of phases are obtained.