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Conductivity Studies of Silver-, Potassium-, and Magnesium-Doped Hydroxyapatite

Singh, Brajendra and Kumar, Samayendra and Basu, Bikramjit and Gupta, Rajeev (2015) Conductivity Studies of Silver-, Potassium-, and Magnesium-Doped Hydroxyapatite. In: INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY, 12 (2). pp. 319-328.

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Official URL: http://dx.doi.org/10.1111/ijac.12167

Abstract

We report the electrical transport properties of silver-, potassium-, and magnesium-doped hydroxyapatites (HAs). While Ag+ or K+ doping to HA enhances the conductivity, Mg+2 doping lowers the conductivity when compared with undoped HA. The mechanism behind the observed differences in ionic conductivity has been discussed using the analysis of high-temperature frequency-dependent conductivity data, Cole-Cole plots of impedance data as well as on the basis of the frequency dependence of the imaginary part (M) of the complex electric modulus. The f(max) of modulus M decreased in silver- and potassium-doped samples in comparison with the undoped HA.

Item Type: Journal Article
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Additional Information: Copy right for this article belongs to the WILEY-BLACKWELL, 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
Keywords: UNIVERSAL DIELECTRIC RESPONSE; AMORPHOUS-SEMICONDUCTORS; IONIC CONDUCTIVITIES; RAMAN-SPECTROSCOPY; IN-VITRO; APATITE; OXIDE; PHOSPHATE; DIFFERENTIATION; NANOPARTICLES
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Date Deposited: 20 Apr 2015 11:19
Last Modified: 20 Apr 2015 11:19
URI: http://eprints.iisc.ernet.in/id/eprint/51293

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