Fe-doped YSZ electrolyte for the fabrication of metal supported-SOFC by co-sintering
Fe-doped YSZ electrolyte for the fabrication of metal supported-SOFC by co-sintering
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DOI：
10.1016/j.ceramint.2015.04.053
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发表时间：
2015-09
影响因子：
5.2
通讯作者：
Pradnyesh Satardekar;D. Montinaro;V. Sglavo
中科院分区：
文献类型：
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作者：
Pradnyesh Satardekar;D. Montinaro;V. Sglavo
以Fe作为YSZ的烧结助剂，研究了共烧结制备MS-SOFC所需的条件。在空气和氩气气氛中于1350 ° C下烧结纯YSZ和Fe掺杂的YSZ，并进行了比较研究。使用X射线衍射（XRD）技术进行结构表征，而在空气中使用四探针阻抗谱测量离子电导率。结果表明，Fe的加入提高了YSZ在空气和氩气气氛中的烧结速率。与空气中烧结的样品相比，氩气中烧结的样品具有更好的烧结性、更大的晶格常数、更高的致密度、更大的晶粒尺寸和更低的电导率。离子电导率被发现，随着铁浓度的增加，所有烧结样品。
Considering Fe as sintering aid for Yttria Stabilized Zirconia (YSZ), studies have been conducted under conditions necessary for the fabrication of MS-SOFC by co-sintering. Pure and Fe doped YSZ was sintered at 1350 °C in air and in argon atmosphere and a comparative study has been performed. Structural characterizations were carried out using X-ray diffraction (XRD) techniques, while ionic conductivity was measured in air using four-probe impedance spectroscopy. It is found that Fe enhances the sintering rate of YSZ in both air and argon atmosphere. All samples sintered in argon atmosphere are characterized by better ‘sinterability’, larger lattice parameter, higher density, larger grain size and lower conductivity, as compared to samples sintered in air. Ionic conductivity is found to decrease with increase in Fe concentration for all sintered samples.