Bioactive and Tribological Behaviour of Atmospheric Plasma Sprayed Hydroxyapatite Coatings Reinforced by Lanthanum Oxide

  • Yugeswaran Subramanian Department of Physics, Pondicherry University, Pondicherry – 605014, India
  • Ananthapadmanabhan P.V Director Research, Sri Shakthi Institute of Engineering and Technology, Coimbatore - 641062, Tamil Nadu, India
  • Paraskevopoulos Konstantinos M. Department of Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
  • Akira Kobayashi JWRI, Osaka University, 11-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan.
Keywords: Hydroxyapatite, Lanthanum oxide, Plasma spraying, Coating, Bioactivity, SBF, Wear resistance


Lanthanum oxide (La2O3) reinforced Hydroxyapatite coating was deposited by using unique gas tunnel type plasma spray torch under optimum spraying conditions. The phase and microstructure of the as-prepared powder and coatings were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM). In vitro bioactivity of the plasma sprayed lanthanum oxide reinforced hydroxyapatite coatings were investigated by using simulated body fluid solution. Results showed that there was onset of apatite formation on the surface of coatings after 15 days of immersion in SBF, while after 19 days of immersion in SBF it was indicated that a HCAp phase crystallized on their surface. Our studies demonstrate that lanthanum oxide reinforced hydroxyapatite coatings are potentially useful biomaterials with good tribological and bioactive behaviour.


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How to Cite
Subramanian, Y., P.V, A., Konstantinos M., P., & Kobayashi, A. (2019). Bioactive and Tribological Behaviour of Atmospheric Plasma Sprayed Hydroxyapatite Coatings Reinforced by Lanthanum Oxide. Frontiers in Advanced Materials Research, 1(1), 12-17.

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