Plasma Sprayed Hydroxyapatite Coatings: Influence of Spraying Power on Microstructure
- Advanced Material Centre (AMREC), SIRIM Bhd, Lot 34, Jalan Hi-Tech 2/4, Kulim Hi-Tech Park, 09000 Kulim (Malaysia)
The plasma sprayed hydroxyapatite (HA) coatings are used on metallic implants to enhance the bonding between the implant and bone in human body. The coating process was implemented at different spraying power for each spraying condition. The coatings formed from a rapid solidification of molten and partly molten particles that impact on the surface of substrate at high velocity and high temperature. The study was concentrated on different spraying power that is between 23 to 31 kW. The effect of different power on the coatings microstructure was investigated using scanning electron microscope (SEM) and phase composition was evaluated using X-ray diffraction (XRD) analysis. The coatings surface morphology showed distribution of molten, partially melted particles and some micro-cracks. The produced coatings were found to be porous as observed from the cross-sectional morphology. The coatings XRD results indicated the presence of crystalline phase of HA and each of the patterns was similar to the initial powder. Regardless of different spraying power, all the coatings were having similar XRD patterns.
- OSTI ID:
- 21371697
- Journal Information:
- AIP Conference Proceedings, Vol. 1217, Issue 1; Conference: ICAMN-2007: International conference on advancement of materials and nanotechnology, Langkawi, Kedah (Malaysia), 29 May - 1 Jun 2007; Other Information: DOI: 10.1063/1.3377885; (c) 2010 American Institute of Physics; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
APATITES
CRACKS
CRYSTAL STRUCTURE
IMPLANTS
MICROSTRUCTURE
MORPHOLOGY
POROUS MATERIALS
SCANNING ELECTRON MICROSCOPY
SOLIDIFICATION
SPRAY COATING
SPRAYED COATINGS
SUBSTRATES
SURFACES
X-RAY DIFFRACTION
COATINGS
COHERENT SCATTERING
DEPOSITION
DIFFRACTION
ELECTRON MICROSCOPY
MATERIALS
MICROSCOPY
MINERALS
PHASE TRANSFORMATIONS
PHOSPHATE MINERALS
SCATTERING
SURFACE COATING