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

被引：23

作者：

Silva, C. C.

Graça, M. P. F.

Valente, M. A.

Sombra, A. S. B.

机构：

[1] Fed Univ Ceara, Dept Met & Mat Engn, BR-60455760 Fortaleza, Ceara, Brazil

[2] Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal

[3] Fed Univ Ceara, Dept Phys, Telecommun & Mat Sci & Engn Lab, LOCEM, BR-60455760 Fortaleza, Ceara, Brazil

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2006年 / 352卷 / 9-20期

关键词：

mechanical alloying; biomaterials; ceramics; nanocrystals; dielectric properties; relaxation; electric modulus; scanning electron microscopy; X-ray diffraction;

D O I：

10.1016/j.jnoncrysol.2006.01.028

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 [材料科学与工程]; 080502 [材料学];

摘要：

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.

引用

页码：1490 / 1494

页数：5

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