Conductivity studies on mechanically alloyed Nano-CSZ powders

Volume 20 No 9 (2022)

M.Kannan, Satyendra Singh, R.R. Prasad

DOI: 10.14704/nq.2022.20.9.NQ44274

Abstract

9 mol%, 12mol% and 15mol% Calcia is mixed with commercial micron sized zirconia Powder mechanically in ball milling under cryogenic conditions to get nano sized powders. Powders were checked for development of stabilised structures and electrical conductivity studies were performed on Nano-CSZ pellets sintered at 1600℃ for 2 hr. Samples were tested for AC conductivity and dielectric constant using 2 probe method. AC conductivity is found to increase with temperature. dielectric constant decreased exponentially with frequency at all temperatures. Electrical properties of Low cost Nano CSZ powder produced mechanically is suitable for SOFC applications.

Keywords

Calcia stabilised zirconia, Sintering, Ball milling, Conductivity, dielectric constant, Electrical properties, CSZ. CSZ- Calcia Stabilised Zirconia, SOFC-Solid Oxide Fuel Cell

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