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Hydroxyapatite coatings prepared by a high power laminar plasma jet
"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 um and 350 um, 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.
" Journal of Materials Processing Technology xxx (2011) xxx-xxx