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Transactions of the INDIAN CERAMIC SOCIETY   Vol. 78  2019
Effect of Microwave Sintering on the Properties of Zirconia Based Ceramic Electrolytes for Solid Oxide Fuel Cells
Payal Sharma,1, 2 Kanchan L Singh,1, * Anirudh P Singh,2 Chetan Sharma2 and Sonia Mago2
Pages : 20-23
DOI :
Abstract
In this work, the effect of microwave sintering on the properties of scandia doped zirconia (10 mol% scandia in zirconia) was investigated. The sample was prepared by mixed oxide method and the sintering was done at the temperature of 1400oC for 20 min using a 2.45 GHz microwave furnace. Sintering behavior of this microwave sintered ceramics was compared with the corresponding conventional sintered ceramics, sintered at 1400oC for 6 h in a conventional furnace. It was found that both the sintering processes produced highly dense samples. X-ray diffraction analysis confirmed the presence of only cubic structure in both the samples. Scanning electron microscopy study was done for micro-structural analysis. Further, electrical conductivity was studied from room temperature to 500oC in the frequency range of 1 kHz to 1 MHz. Higher ionic conductivity was recorded for microwave sintered sample than the corresponding conventional sintered sample. [Keywords: Ceramics, Solid oxide fuel cell, Electrolyte, Microwave sintering]
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