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Author Naidu, K. Chandra Babu ♦ Sarmash, T. Sofi ♦ Maddaiah, M. ♦ Reddy, V. Narasimha ♦ Subbarao, T.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CONDENSED MATTER PHYSICS, 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
Abstract 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.
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-06-24
Publisher Place United States
Volume Number 1665
Issue Number 1


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