Structural and dielectric properties of CuO-doped SrTiO{sub 3} ceramics
- Materials Science Lab, Department of Physics, S K University, Anantapur – 515003, A. P (India)
Copper-doped SrTiO{sub 3} (ST) ceramic powders were processed by solid-state route diffusion (SRD) bulk preparation technique. We reported the effect of Cu{sup +2} ions on the dielectric response of ST and it established the substantial increase in dielectric constant (ε{sub r}) 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 of range 0.089-0.319eV using lnσ Vs 1/T plots. The microstructure was examined with grain sizes 6-9µm of uniform distribution by field emission scanning electron microscope (FESEM). Some additional phases SrCu{sub 3}Ti{sub 4}O{sub 12} and TiO{sub 2} rutiles were detected by X-ray diffraction technique.
- OSTI ID:
- 22490206
- Journal Information:
- AIP Conference Proceedings, Vol. 1665, Issue 1; Conference: 59. DAE solid state physics symposium 2014, Tamilnadu (India), 16-20 Dec 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ACTIVATION ENERGY
CERAMICS
COPPER
COPPER IONS
COPPER OXIDES
DIELECTRIC MATERIALS
DIFFUSION
DOPED MATERIALS
FIELD EMISSION
GRAIN SIZE
PERMITTIVITY
POWDERS
RUTILE
SCANNING ELECTRON MICROSCOPY
STRONTIUM TITANATES
TITANIUM OXIDES
X-RAY DIFFRACTION