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< Vol. 12 Issue 2 | May-Aug 2014 | pp. 65 - 112

Effect of alumina on microstructure and compressive strength of a porous silicated hydroxyapatite

Abstract

Purpose: We investigated the effects of alumina addition on microstructure and compressive strength of a porous silicate substituted hydroxyapatite (Si-HA). Methods: Hydroxyapatite (HA) was synthesized under precipitation conditions and 10 %Wt. of sol–gel derived CaO.P2O5.SiO2 based bioglass (BG) powder was added to HA. Polyurethane foam was used to form a high porous structure with integral porosity of 70%. Phase analysis was performed using XRD and FTIR and the microstructure was studied using SEM. Results: The results confirmed that the Si-HA was the only formed phase before Al2O3 addition while after addition the presence of silicon-incorporated HA and alumina without any other phases was proved using these analyses. Conclusions: The porous structures of Si-HA and Al2O3 were synthesized using the replication technique. The compressive strength of porous bioceramics increased with increasing Al2O3 content up to 30 wt% (ANOVA, P>.05).

J Appl Biomater Funct Mater 2014; 12(2): 102 - 106

Article Type: ORIGINAL RESEARCH ARTICLE

DOI:10.5301/JABFM.2012.9772

Authors

Sayed Mahmood Rabiee, Roya Ravarian, Mohammad Mehmanchi, Parastoo Khoshakhlagh, Misaq Azizian

Article History

  • • Accepted on 22/03/2012
  • • Available online on 07/11/2012
  • • Published online on 05/09/2014

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Authors

  • Rabiee, Sayed Mahmood [PubMed] [Google Scholar]
    Department of Mechanical Engineering, Babol (Noshirvani) University of Technology, Babol - Iran
  • Ravarian, Roya [PubMed] [Google Scholar]
    School of Chemical and Biomolecular Engineering, University of Sydney - Australia
  • Mehmanchi, Mohammad [PubMed] [Google Scholar]
    Department of Materials Science and Engineering, Sharif University of Technology, Tehran - Iran
  • Khoshakhlagh, Parastoo [PubMed] [Google Scholar]
    Department of Biomedical Engineering, School of Science and Engineering, Tulane University, New Orleans - USA
  • Azizian, Misaq [PubMed] [Google Scholar]
    Department of Mechanical Engineering, Babol (Noshirvani) University of Technology, Babol - Iran

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