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- Title
SYNTHESIS AND CHARACTERIZATION OF CuO-DOPED SrTiO<sub>3</sub> CERAMICS.
- Authors
MADDAIAH, M.; NAIDU, K. CHANDRA BABU; RANI, D. JHANSI
- Abstract
Copper-doped SrTiO3 (ST) ceramic powders were processed by solid-state route diffusion (SRD) bulk preparation technique. We reported the effect of Cu+2 ions on the dielectric response of ST and it established the substantial increase in dielectric constant (εr) than undoped ST from 303K-673K and low loss (tanδ)for good dielectric applications. In respect of the electrical properties ac, activation energies were computed using lnσ Vs 1/T plots. The highest thermo electric power of 250μV/K was noticed at temperature 303K for thermoelectric applications. The microstructure was examined with grain sizes 6-9μm of uniform distribution by field emission scanning electron microscope (FESEM).Some additional phases SrCu3Ti4O12 and TiO2 rutiles were detected by X-ray diffraction technique and the FTIR spectrum attributed the presence of metal oxygen (M-O) bonds.
- Subjects
CERAMIC powders synthesis; COPPER ions; DIFFUSION; PERMITTIVITY; CALCINATION (Heat treatment); ELECTRON field emission; ELECTRON microscopy; X-ray diffraction
- Publication
Journal of Ovonic Research, 2015, Vol 11, Issue 3, p99
- ISSN
1842-2403
- Publication type
Article