Abstract In the present investigation, solid oxide fuel cells (SOFCs) electrolyte coatings of 8 mol% Y2O3 stabilized ZrO2 (YSZ) are applied on Ni-YSZ cermet fuel cell anode in ethanol by pulsed constant voltage-electrophoretic deposition (EPD). Press pressure and sintering temperature as two of the most effective parameters for NiO-YSZ composite fabrication are investigated. In order to create electrically conductive anodes, NiO-YSZ composite is reduced in H2 atmosphere while its crystallinity being studied by X-ray diffraction (XRD). Pulsed constant voltage EPD process parameters such as pulse width, applied voltage and total deposition time are examined. The YSZ electrolyte film is sintered for 4 h at two different temperatures of 1300 and 1350 C°. Optical microscope (OM) is used to study the surface quality of coating. Substrate morphology and the quality of YSZ electrolyte film are investigated by scanning electron microscope (SEM). Atomic force microscopy (AFM) is used to probe the surface roughness and the morphology of green and sintered coatings. Results show improved deposition yield by increasing applied voltage and total deposition time. Uniform and dense coating was deposited at voltage of 35 V, pulse width of 1 ms, 50% duty cycle and total deposition time of 6 min having the thickness and roughness of about 17 ± 1 μm and 166 ± 5 nm, respectively.

中文翻译：

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用于 SOFC 应用的导电多孔 Ni-YSZ 金属陶瓷上 YSZ 电解质涂层的脉冲恒压电泳沉积

摘要 在目前的研究中，8 mol% Y2O3 稳定的 ZrO2 (YSZ) 固体氧化物燃料电池 (SOFC) 电解质涂层通过脉冲恒压电泳沉积 (EPD) 涂覆在乙醇中的 Ni-YSZ 金属陶瓷燃料电池阳极上。研究了压机压力和烧结温度作为 NiO-YSZ 复合材料制造的两个最有效参数。为了制造导电阳极，NiO-YSZ 复合材料在 H2 气氛中被还原，同时通过 X 射线衍射 (XRD) 研究其结晶度。检查脉冲恒压 EPD 工艺参数，例如脉冲宽度、施加电压和总沉积时间。YSZ 电解质膜在 1300 和 1350 C°两种不同温度下烧结 4 小时。光学显微镜（OM）用于研究涂层的表面质量。通过扫描电子显微镜 (SEM) 研究了基板形貌和 YSZ 电解质膜的质量。原子力显微镜 (AFM) 用于探测表面粗糙度以及生坯和烧结涂层的形态。结果表明通过增加施加电压和总沉积时间提高了沉积产率。在 35 V 电压、1 ms 脉冲宽度、50% 占空比和 6 分钟总沉积时间下沉积均匀致密的涂层，厚度和粗糙度分别约为 17 ± 1 μm 和 166 ± 5 nm。