Activity of plasma sprayed yttria stabilized zirconia reinforced hydroxyapatite/Ti–6Al–4V composite coatings in simulated body fluid

Mechanical and in vitro biological performances of hydroxyapatite–carbon nanotube composite coatings deposited on Ti by aerosol deposition

“…However, considerable amounts of the second phase are required for a significant improvement in the mechanical properties of the composite coatings. Moreover, the bioinertness or poor bioactivity of these phases often results in the HA composite coatings having much lower biological properties than HA itself [8]. Therefore, for the fabrication of composite coatings having good mechanical properties without any deterioration in their bioactivity it is necessary to use a second phase with high bioactivity or to keep the amount of the second phase as low as possible, so as not to lower the biological performance of the coatings significantly.…”

“…Recently, in order to improve the mechanical properties of the HA coating itself, HA composite coatings in which HA is combined with other materials used as a second phase, such as ethylene-based polymer [7], yttria-stabilized zirconia [8] and alumina [9], have been extensively studied. However, considerable amounts of the second phase are required for a significant improvement in the mechanical properties of the composite coatings.…”

Application of Low-Temperature Plasma Processes for Biomaterials

“…Due to the well-established bioactive properties and good biocompatibility of hydroxyapatite, these coatings have been clinically used in dentistry and orthopedics since the mid 1980s (Tang et al, 2010). Furthermore, plasma spraying can also be used to create other layers like Ca-Si-Ti-based sphene ceramics (Wu et al, 2009), hydroxyapatite/ silica ceramics (Morks 2008), zirconia (Morks & Kobayashi 2008;Wang et al, 2010), yttria-stabilized zirconia or hydroxyapatite/ yttria/ zirconia composites (Chang et al, 1997;Gu et al, 2004). One important advantage of plasma-sprayed coatings for biomaterials is the ability to precisely modify the microstructure by modulating the parameters of the plasma process Huang et al, 2010) to study and improve microstructure-related tissue growth stimulation.…”

Evaluation of Calcium Phosphate Coating Films on Titanium Fabricated Using RF Magnetron Sputtering

“…Some studies have been performed on the bonding strength of sputtered calcium phosphate films. 14-18) Ong et al, 14) Ding et al, 15) and Lee et al 16) evaluated the bonding strength of calcium phosphate films fabricated by ion-beam sputter deposition, RF magnetron sputtering, and electron beam evaporation with ion bombardment, respectively, using the same adherence testing 19,20) It has been pointed out that the bonding strength of a calcium phosphate coating film is influenced by heat treatments and immersion in simulated body fluids. 14,15) A study on the effect of the post-treatment of calcium phosphate coating films on the bonding strength is currently in progress.…”