Publication Type:

Journal Article


Materials Science and Engineering: B, Volume 177, Number 14, p.1213 - 1218 (2012)



Dielectric property


Tantalum (Ta5+) doped CaCu3Ti4−xTaxO12 (x = 0.05 and 0.10) ceramics were prepared by semi-wet route using solid Ta2O5 powder and metal nitrate solutions. Powder X-ray diffraction confirmed the major phase formation of cubic CaCu3Ti4O12 ceramic in the doped samples sintered at 900 °C for 6 h. Microstructure has been studied using field-emission scanning electron microscopy. The grain size is in the range of 150 nm to 1 μm for both compositions. Dielectric constant of the samples increases with increasing tantalum concentrations.

Cite this Research Publication

Alok Kumar Rai, Kumar, S. Nitish, Kumar, A. Susant, Laxman, S., and K.D., M., “Effect of tantalum substitutions on microstructures and dielectric properties of calcium copper titanate (CaCu 3 Ti 4 O 12) ceramic”, Materials Science and Engineering: B, vol. 177, pp. 1213 - 1218, 2012.