Paper Title:
Influence of Hydrothermal Reaction Temperature and pH on Phase Stability of Hydroxyapatite
  Abstract

The effect of hydrothermal reaction temperature and pH on crystallite size, phase stability, and sintered density of hydroxyapatite (HAp) has been investigated. The crystallite size increased with the increase in temperature but was not significantly affected by pH. The decomposition of HAp into tricalcium phosphate was observed at 1250°C and the extent of decomposition decreased with increase in pH. The influence of temperature and pH on the crystallite size and the decomposition was related to the decrease in solubility of Ca2+. The phase stability of HAp, prepared hydrothermally, in HAp/zirconia composites was higher than that of commercial HAp due to its high sintered density.

  Info
Periodical
Key Engineering Materials (Volumes 330-332)
Main Theme
Edited by
Xingdong Zhang, Xudong Li, Hongsong Fan, Xuanyong Liu
Pages
147-150
DOI
10.4028/www.scientific.net/KEM.330-332.147
Citation
S. H. Park, I. Y. Ryu, D. J. Kim, J. S. Han, M. H. Lee, "Influence of Hydrothermal Reaction Temperature and pH on Phase Stability of Hydroxyapatite", Key Engineering Materials, Vols. 330-332, pp. 147-150, 2007
Online since
February 2007
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