Affordable Access

Publisher Website

Processing of a natural hydroxyapatite powder: From powder optimization to porous bodies development

Authors
Journal
Journal of the European Ceramic Society
0955-2219
Publisher
Elsevier
Publication Date
Volume
31
Issue
14
Identifiers
DOI: 10.1016/j.jeurceramsoc.2011.02.017
Keywords
  • Apatite
  • Biomedical Applications
  • Calcination
  • Gelcasting
  • Porosity

Abstract

Abstract This paper deals with the development of macro-porous components made of a carbonated hydroxyapatite (HAp) nanopowder which was extracted from pig bones. Prior to sintering, the powder was treated at 700 °C for 1 h. During calcination, a partial carbonate decomposition occurred yielding CaO. In order to eliminate this by-product, the calcined HAp was washed in distilled water several times, checking the effect of washings by FT-IR spectroscopy. Then, the thermal stability of the as-calcined and washed powders treated in the range 800–1400 °C was investigated by XRD. After that, macro-porous materials made of washed HAp powder were prepared through a modified gelcasting process, using agar as a natural gelling agent and polyethylene spheres as the pore formers.

There are no comments yet on this publication. Be the first to share your thoughts.