Article,

AC and DC conductivity analysis of hydroxyapatite and titanium calcium phosphate formed by dry ball milling

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JOURNAL OF NON-CRYSTALLINE SOLIDS, 352 (9-20): 1490-1494 (2006)21st International Conference on Amorphous and Nanocrystalline Semiconductors, Lisbon, PORTUGAL, SEP 04-09, 2005.
DOI: 10.1016/j.jnoncrysol.2006.01.028

Abstract

In this paper, we present the preparation and electrical properties of nanocrystalline powders of hydroxyapatite (HAP) bioceramics, produced using the starting materials Ca(H2PO4)(2), Ca(OH)(2) and a high energy dry ball milling technique. Titanium calcium phosphate (CaP-Ti) was also prepared, the raw materials Ca(H2PO4)(2) and TiO2, and examined. The HAP was obtained of milling 5, 10 and 15 h while in the reaction with CaP-Ti, the CaTi4P6O24 phase was obtained after 5, 10 and 15 h of milling. The HAP and the ceramic calcium phosphate with titanium (CaP-Ti) were studied by X-ray powder diffraction, DC and AC conductivity and dielectric constant measurements. (c) 2006 Elsevier B.V. All rights reserved.

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