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Higher in-flight particle velocities enhance in vitro tribological behavior of plasma sprayed hydroxyapatite coatings
- Source :
- Tribology International. 2016, vol. 103, issue 1, p. 496-503.
- Publication Year :
- 2016
- Publisher :
- Elsevier, 2016.
-
Abstract
- Hydroxyapatite (HA) coatings were deposited onto Ti6Al4V substrates via atmospheric plasma spraying under systematically varying spray parameters, leading to different in-flight particle velocities. Morphology, composition, and tribological properties of the coatings were then studied. The coatings deposited at higher in-flight particle velocities exhibited smoother surface topography, better inter-particle bonding and higher Young's modulus and hardness. Ball-on-disc tribological results showed that the friction and wear of the HA coatings significantly decreased with increased in-flight particle velocity under both dry and wet (Hanks' solution) conditions. All HA coatings exhibited lower friction and wear during the wet sliding due to the lubricating effect of the solution.
- Subjects :
- wear
Morphology (linguistics)
Materials science
Mechanical Engineering
friction
Titanium alloy
Modulus
Atmospheric-pressure plasma
bio-tribology
02 engineering and technology
Surfaces and Interfaces
Tribology
021001 nanoscience & nanotechnology
HA coating
Surfaces, Coatings and Films
020303 mechanical engineering & transports
0203 mechanical engineering
Mechanics of Materials
Hanks’ solution
Particle
Particle velocity
Composite material
0210 nano-technology
Thermal spraying
thermal spraying
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Tribology International. 2016, vol. 103, issue 1, p. 496-503.
- Accession number :
- edsair.doi.dedup.....21da266c4d025ce9968cf53eb70141f7