Hydroxyapatite (Hap) ceramic material was synthesized using polyethylene glycol by a sol-gel method which was found to be more advantageous to modify the morphology and particle size. Structural analysis of prepared Hap with different precursors was carried out by XRD studies. The phase transition and function group analysis were carried out by FTIR studies. FESEM images clearly showed the influence of various precursors on the morphology of the synthesized material which finds its application in various medical fields such as in implants and coatings. © 2017 Australian Ceramic Society.

Helen Sharmila

Department of Analytics

School of Computer Science and Engineering

Vellore Campus

Ruban Kumar A

Department of Physics

School of Advanced Sciences

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Journal of the Australian Ceramic Society

Hydroxyapatite Ca 10(PO 4) 6(OH) 2 has attracted widespread interest from both orthopedic and dental fields due to its excellent biocompatibility and tissue bioactivity properties. Since nanophase materials can mimic the dimensions of constituent components of natural tissues, the implants developed from nanophase material could serve as a successful alternative. However, the defects of hydroxyapatite ceramics, mainly brittleness and low fracture toughness, have been overcome by the use of nanophase hydroxyapatite coatings on the implant surfaces that integrate the good mechanical properties of metals and the bioactivity of hydroxyapatite. In the present investigation, Sol-gel hydroxyapatite was prepared from two different phosphorus precursors such as triethyl phosphate and phosphorus pentoxide respectively with calcium nitrate tetrahydrate as a calcium precursor. The effects of pH and liquid P 31 Nuclear Magnetic Resonance spectroscopy for the solution aged at different periods were investigated and the synthesized hydroxyapatite powder was characterized by Transmission electron microscopy, X-ray Powder Diffraction, Fourier transform infrared spectroscopy and thermal analysis respectively. In order to fully understand the bioactivity of the synthesized materials, they were coated on 316L Stainless Steel implant surface by spin coating method at the spin speed of 2,000 Revolutions per minute. The effect of nanoparticles on the surface of 316L Stainless Steel implant was studied by adhesive strength measurements. The corrosion resistance property of the hydroxyapatite coatings was evaluated by electrochemical impedance analysis. From the results, it was observed that the hydroxyapatite coatings obtained from different precursors have very high resistance to corrosion with higher adhesive strength. © 2012 Springer Science+Business Media, LLC.

Journal of Sol-Gel Science and Technology

Influence of process parameters on the sol–gel synthesis of nano hydroxyapatite using various phosphorus precursors

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Comparison of precursors on hydroxyapatite with binders on phases, particle size, and morphology

Journal	Data powered by TypesetJournal of the Australian Ceramic Society
Publisher	Data powered by TypesetSpringer Science and Business Media LLC
ISSN	2510-1560
Open Access	No