The Effect of Titanium Dioxide (TiO2) Nanoparticles on Hydroxyapatite (HA)/TiO2 Composite Coating Fabricated by Electrophoretic Deposition (EPD)

Effect of hydroxyapatite‐titanium‐MWCNTs composite coating fabricated by electrophoretic deposition on corrosion and cellular behavior of NiTi alloy

“…In the HA‐Ti composite coating, some new phases including, TiO 2 , CaTiO 3 , TiP, and Ca 3 (PO 4 ) 2 were produced after the sintering process. Some research studies confirmed that the electrochemical resistance of the HA coating was substantially improved after composed with ceramics, such as TiO 2 , CaTiO 3 , and Ca 3 (PO 4 ) 2 . Yugeswaran et al showed that the presence of TiO 2 in the HA coating decreased the corrosion rate of the HA‐coated 316 stainless steel from 2.22 to 0.77 μA.cm −2 .…”

“… investigated the effect of Ca 3 (PO 4 ) phase on the electrochemical behavior of the 316 L steel coated with HA and showed that the presence of Ca 3 (PO 4 ) 2 in the HA coating decreased the corrosion rate of the HA‐coated 316 L from 1.02 to 0.34 μA.cm −2 . According to the studies, conducted on evaluating the electrochemical behavior of the HA coating composed with TiO 2 , CaTiO 3 , and Ca 3 (PO 4 ) 2 phases, it can be concluded that HA‐Ti coatings have a very high electrochemical stability compared with that of the HA coating . The presence of carbon nanotubes in the bioceramic coatings can substantially improve the electrochemical stability of the coating, which is basically due to the very high chemical stability of the carbon nanotubes .…”

“…Some research studies confirmed that the electrochemical resistance of the HA coating was substantially improved after composed with ceramics, such as TiO 2 , CaTiO 3 , and Ca 3 (PO 4 ) 2 . [42][43][44][45] Yugeswaran et al [42] showed that the presence of TiO 2 in the HA coating decreased the corrosion rate of the HA-coated 316 stainless steel from 2.22 to 0.77 μA.cm −2 . Amirnejad et al [43] also could reduce the corrosion rate of the HA-coated 316 stainless steel from 18.92 to 6.35 μA.cm −2 after composing the HA coating with TiO 2 .…”

“…[42][43][44][45] Yugeswaran et al [42] showed that the presence of TiO 2 in the HA coating decreased the corrosion rate of the HA-coated 316 stainless steel from 2.22 to 0.77 μA.cm −2 . Amirnejad et al [43] also could reduce the corrosion rate of the HA-coated 316 stainless steel from 18.92 to 6.35 μA.cm −2 after composing the HA coating with TiO 2 . Li et al [44] also investigated the effect of CaTiO 3 and TiO 2 on the electrochemical behavior of HA/polylactic acid coatings and revealed that the corrosion rate of HA/polylactic acid-coated AZ31 alloy decreased from 17.6 to 0.891 nA.cm −2 after composed with CaTiO 3 and TiO 2 .…”

“…According to the studies, conducted on evaluating the electrochemical behavior of the HA coating composed with TiO 2 , CaTiO 3 , and Ca 3 (PO 4 ) 2 phases, it can be concluded that HA-Ti coatings have a very high electrochemical stability compared with that of the HA coating. [42][43][44][45] The presence of carbon nanotubes in the bioceramic coatings can substantially improve the electrochemical stability of the coating, which is basically due to the very high chemical stability of the carbon nanotubes. [46,47] The results of electrochemical tests conducted investigating the polarization and EIS also indicated an improvement in the electrochemical resistance of the HA-Ti composite coating after composed with MWCNT nanoparticles.…”