Paper Titles
The Effect of Bioceramic Surface Modifications on Different Endosseous Implant and Surgical Design. A Series of In Vivo Studies in Dogs.
p.385
The Interaction between Human Osteoblastic Cells and Titanium Anodized with Sulphuric Acid Coated or not with Human Plasma Fibronectin
p.389
The Manipulation of Properties of Ti Bioalloys at Micro and Nanoscale Using Etching Procedures
p.393
Biocompatibility and Osteo-Differentiation Study of Poly(ε-Caprolactone) and β-Tricalcium Phosphate Composite Membranes
p.399
Bovine Hydroxyapatite (BHA) Boron Oxide Composites
p.403
Bovine Hydroxyapatite (BHA) Strontium Oxide Composites
p.407
Combustion Synthesis of Hydroxyapatite and Hydroxyapatite (Silver) Powders
p.411
Development of Gelatin/HA Membranes
p.421
Effect of Saline Precipitation on the Production of Collagen-Hydroxyapatite (1:1 wt%) Composite
p.425

Bovine Hydroxyapatite (BHA) Boron Oxide Composites

Article Preview

Abstract:

Composites of calcinated bovine bone derived hydroxyapatite (HA) with 5, 7.5 and 10 wt % B2O3 were prepared by sintering. The production of HA from natural sources is preferred due to economical and time saving reasons. In this study scanning electron microscopy (SEM) investigations, microhardness and compression strength measurements were performed on composites. The experimental results indicated that compression strength and microhardness of HA-boron-oxide composites decrease when the content of boric acid and sintering temperature increase. The best mechanical properties achieved for 5 wt % addition of dehydrated boric acid. It was seen that at higher sintering temperatures, the compression strength and the microhardness decrease due to the very intensive pore formation. The results agree fairly well with microstructure analysis.

You might also be interested in these eBooks
Bioceramics 21 View Preview

Info:

Periodical:

Key Engineering Materials (Volumes 396-398)

Pages:

403-406

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.396-398.403

Citation:

Cite this paper

Online since:

October 2008

Authors:

Oguzhan Gunduz, L.S. Ozyegin, Sergey V. Dorozhkin, Onur Meydanoglu, Niyazi Eruslu, S. Kayali, Simeon Agathopoulos, Faik Nuzhet Oktar

Keywords:

Boric Acid, Hydroxyapatite (HAP), Mechanical Property, Microstructure, Sintering

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2009 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] G. Goller, H. Demirkiran and et al.: Ceram. Int., Vol. 29 (2003), p.721.

Google Scholar

[2] F.N. Oktar: Mater. Lett., Vol. 60 (2006), p.2207.

Google Scholar

[3] F.N. Oktar, S. Ozyegin and et al.: Key Eng. Mater., Vol. 309-311 (2006), p.101.

Google Scholar

[4] F.N. Oktar, (1999), Characterization of tooth processed tooth hydroxyapatite and bioglass for potential applications in dentistry, Ph.D. Thesis, Bogazici University, Istanbul, Turkey.

Google Scholar

[5] P. Valéiro, A.M. Goes, S. Yilmaz, F.N. Oktar, Influence of Boroxide Containing Bioactive Bioglasses (BBB) on Osteoblast Viability, The 15 th International Vascular Biology Meeting 1-5 June 2008, Sydney, Australia.

Google Scholar

[6] A.C. Dupont, S.D. Bagg, L. Baker, S. Chun, J.L. Creasy, C. Romano, D. Romano, R.L. Waters, C.L. Wederich, F.J.R. Richmond, G.E. Loeb, Thrapeutic electrical stimulation with bions: clinical trial report, 2nd Joint Conference of the IEEE Engineering in Medicine and Biology Society and Biomedical Engineering Society in Istanbul, Turkey, (2001).

DOI: 10.1109/iembs.2002.1053354

Google Scholar

[7] M.A. Fanovich and et al.: J. Mater. Sci. Vol. 33 (1998), p.269.

Google Scholar

[8] M.A. Fanovich and et al.: Ceram. Int. Vol. 25 (1999), p.517.

Google Scholar

[9] F.N. Oktar, M.R. Demirer and et al.: Key Eng. Mater., Vol. 309-311 (2006), p.49.

Google Scholar

[10] A.P. M Schainberg, P. Valério, F.N. Oktar, M.F. Leite, A.M. Goes, Evaluation of Osteoblasts Interactions on Lithium-Hydroxyapatites Composites, 20th European Conference on Biomaterials, September 27th-October 1st, 2006, Nantes, France.

Google Scholar

[11] P. Valério, F.N. Oktar and et al.: Key Eng. Mater., Vol. 254-2.. (2004), p.777.

Google Scholar

[12] F.N. Oktar and S. Agathopoulos (unpublished data).

Google Scholar

[13] J.H.G. Rocha, A.F. Lemos and et al.: Bone, Vol. 37 (2005), p.850.

Google Scholar