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Dielectric properties of iron doped calcium copper titanate, CaCu3Ti3. 9Fe0. 1O12 ceramic

Publication Type : Journal Article

Thematic Areas : Nanosciences and Molecular Medicine

Publisher : Journal of Materials Science: Materials in Electronics

Source : Journal of Materials Science: Materials in Electronics, Volume 22, Number 9, p.1286–1289 (2011)

Url : http://dx.doi.org/10.1007/s10854-011-0301-5

Campus : Kochi

School : Center for Nanosciences

Center : Amrita Center for Nanosciences and Molecular Medicine Move, Nanosciences

Department : Nanosciences and Molecular Medicine

Year : 2011

Abstract : Dielectric properties of iron doped CaCu3Ti4O12 (CCTO), viz. CaCu3Ti3.9Fe0.1O12 (CCTFO) prepared by a novel semi-wet route have been investigated. X-ray diffraction of powder sintered at 900nbsp;°C show formation of single phase solid solution. Energy dispersive X-ray spectroscopy (EDX) confirmed the presence of CuO rich phase at grain boundaries of CCTFO. Nature of dielectric relaxation observed above room temperature is studied using complex plane impedance analysis and modulus spectroscopy. It has been found that out of the two relaxations reported earlier above room temperature, one occurring at lower temperature is due to grainboundaries interfacial polarization.

Cite this Research Publication : A. Kumar Rai, Singh, N. K., Lee, S. - K., Mandal, K. D., Dhanush Kumar, and Parkash, O., “Dielectric properties of iron doped calcium copper titanate, CaCu3Ti3. 9Fe0. 1O12 ceramic”, Journal of Materials Science: Materials in Electronics, vol. 22, pp. 1286–1289, 2011.

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