Synthesis and characterization of bulk and coatings of hydroxyapatite using methanol precursor

Journal Article · Tue Feb 05 04:00:00 EST 2008 · Materials Research Bulletin

DOI:https://doi.org/10.1016/j.materresbull.2007.02.039· OSTI ID:21068202

Khongwar, Jasper K ^[1]; Kannan, K R ^[2]

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1. Chemistry Division, School of Science and Humanities, Vellore Institute of Technology University, Vellore 632014, Tamil Nadu (India)
2. SSCU, Indian Institute of Science, Bangalore 560012 (India)

Hydroxyapatite, an important bioceramic was synthesized in the bulk form and developed as a coating by a sol-gel route using alcoholic precursor. The bioactive coating was developed on bio-inert {alpha}-alumina and yttria stabilized zirconia substrates. The apatite phase began to form after the heat treatment of the precursor at 500 deg. C for 10 min. The complete crystallization of the apatite was obtained at 800 deg. C heat treatment for 10 min. The phase composition of the bulk and the coatings was identified by FT-IR spectroscopic and powder X-ray diffraction (XRD) techniques. Surface morphology was determined by scanning electron microscopy. The study indicates different surface textures for the powder and for the coatings on {alpha}-alumina and yttria stabilized zirconia substrates.

• OSTI ID: 21068202
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Journal Issue: 2 Vol. 43; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM OXIDES
APATITES
COATINGS
CRYSTALLIZATION
FOURIER TRANSFORMATION
HEAT TREATMENTS
INFRARED SPECTRA
METHANOL
MICROSTRUCTURE
SCANNING ELECTRON MICROSCOPY
SOL-GEL PROCESS
SPECTROSCOPY
SYNTHESIS
X-RAY DIFFRACTION
YTTRIUM OXIDES
ZIRCONIUM OXIDES