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1. Polycrystalline BiV1.02504+x ceramics were prepared by solid state synthesis and found to exhibit mixed oxide ion and electronic conduction based on AC impedance measurements from 150-800°C in various atmospheres. 2. The results indicate predominantly electronic conduction at both low (<400°C) and high (>600°C) temperatures. Oxide ion conduction was found to dominate between 400-600°C with an activation energy of 0.80 eV. 3. The bulk conductivity below 400°C was found to be metastable and influenced

Author

Rachna Selvamani

Language

EN