Conductivity and dielectric properties of sol–gel derived porous zirconia |
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Authors: | C Kumar P Manohar |
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Institution: | (1) Department of Physics, S. R. M. Institute of Science and Technology, SRM University, Kattankulathur, 603 203 Chennai, India;(2) Division of Science and Humanities, Madras Institute of Technology, Anna University, Chennai, India |
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Abstract: | The 8-mol percentage Y2O3-stabilized Porous Zirconia was prepared using sol–gel method. Zirconium oxalate gel was prepared by the addition of appropriate
amount of oxalic acid solution into the 1 M aqueous solution of zirconium-oxy chloride. A cubic phase zirconia powder was
obtained by calcination and milling of the zirconium oxalate gel. Crystallization temperature was found about 450 °C from
the Differential thermal analysis. The phase analysis by X-ray diffraction shows the presence of cubic phase. Pellets sintered
at 1,350 °C were highly porous, and the electrical conductivity was found with lower value due to the porosity, and the hardness
was about 8.0 GPa.
Paper presented at the Third International Conference on Ionic Devices (ICID 2006), Chennai, Tamilnadu, India, Dec. 7–9, 2006. |
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Keywords: | Conductivity and dielectric properties Sol– gel Porous zirconia |
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