Hydroxyapatite coatings prepared by a high power laminar plasma jet
АуториVilotijević, Miroljub N.
Marinković, Slobodan N.
Jokanović, Vukoman R.
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For two hydroxyapatite (HA) powders, containing particles differing in mass by a factor of 20, a set of optimum deposition parameters was defined, leading to the coatings with high crystallinity (80-90%), high adhesion strength (60 and 40 MPa for the coating thicknesses of 120 mu m and 350 mu m, respectively) and excellent microstructure (coatings were without micro- or macro-cracks, without delaminating on substrate-coating surface contact, and possess low porosity, 1-2%). It was shown that higher plasma power (52 kW) did not necessarily lead to a higher HA decomposition. (C) 2011 Elsevier B.V. All rights reserved.