Hydroxyapatite based nanocomposite ceramics

被引：23
|
作者：
Hendi, A. A. [1 ]
机构：
[1] King Abdulaziz Univ, Fac Sci, Dept Phys, AL Faisaliah Campus, Jeddah 21589, Saudi Arabia
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 712卷
关键词：
Ceramics; Optical properties; Sol gel method; SOL-GEL METHOD; POLARIZED HYDROXYAPATITE; AC CONDUCTIVITY; BIOMATERIALS; IMPEDANCE; SURFACE; APATITE; FILMS;
D O I：
10.1016/j.jallcom.2017.04.021
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Lanthanum-doped hydroxyapatite ceramics were synthesized by the sol gel method and their chemical composition analyzed by FTIR and EDS. SEM observations showed all samples to exhibit a spherical nanoparticles nanostructure. The electrical properties of La doped HAp ceramics were investigated by dielectric and polarization -voltage measurements. The dielectric constant, er increased gradually with the amount of lanthanum doping. A non-Debye type dielectric relaxation mechanism was observed as well as a ferroelectric behavior. Results indicate that La doping improves the electrical and ferroelectric properties of hydroxyapatite ceramics. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：147 / 151
页数：5
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