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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