- Effect of Sintering Temperature on the Microstructure and Mechanical Properties of Solid Oxide Fuel Cell Anode Fabricated by Spark Plasma Sintering
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Byung Ju Song, Ka Ram Kim, Hye Sung Kim
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J Korean Powder Metall Inst. 2013;20(6):425-431.
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DOI: https://doi.org/10.4150/KPMI.2013.20.6.425
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 Abstract
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- Microstructural and mechanical properties of Ni-YSZ fabricated using SPS processing have been investigated at various sintering temperatures. Our study shows samples to be applied as a SOFC anode have the proper porosity of 40% and high hardness when processed at 1100°C. These results are comparable to the values obtained at 100-200°C higher sintering temperature reported by others. This result is important because when the fabrication processes are performed above 1100°C, the mechanical property starts to decrease drastically. This is caused by the fast grain coarsening at the higher temperature, which initiates a mismatch between thermal expansion coefficients of Ni and YSZ and induces cracks as well.
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