Paper Title:
Effects of Aging and Temperature on the Oriental Growth of Hydroxyapatite
  Abstract

In order to find a simple way to prepare oriental HA, only by controlling the preparation conditions, a co-precipitation method was used to prepare an oriented HA. The influences of temperature and aging on its directional growth were investigated kinetically and thermodynamically. The chemical composition was characterized by X-Ray diffraction and Fourier transform infrared. The morphologies were observed by scanning electron microscopy (SEM). The oriented parameters of HA (c/a) were calculated by Scherrer equation. The results show that the temperature rise in the process of synthesis, aging or calcining inhibited the growth of HA crystal in the direction of c-axis. Aging for 24 h benefited the growth along c-axis, whereas aging for 36 h was in favor of the decreasing of the c/a value. The supernatant-replacement during aging exerted the same effect on the growth with the rising of temperature. The SEM analysis result shows that the morphology of the produced HA particles looked like a uniform needle shape and had a good dispersion.

  Info
Periodical
Advanced Materials Research (Volumes 308-310)
Chapter
Driven Train Mechanisms
Edited by
Jian Gao
Pages
2180-2186
DOI
10.4028/www.scientific.net/AMR.308-310.2180
Citation
H. Yang, F. F. Huang, K. W. Xu, "Effects of Aging and Temperature on the Oriental Growth of Hydroxyapatite", Advanced Materials Research, Vols. 308-310, pp. 2180-2186, 2011
Online since
August 2011
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Price
$32.00
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