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.