title: Effects of applied voltages on hydroxyapatite coating of titanium by electrophoretic deposition.
abstract: Hydroxyapatite (HA) coatings were deposited on titanium substrates by electrophoretic deposition (EPD) at constant voltage and dynamic voltage, respectively. Various surface morphologies were observed under different type of voltages. Under a constant voltage of 20 V, a dense HA coating could be prepared. Under a constant voltage of 200 V, big HA particles were deposited and the coating was porous. Under a dynamic voltage, a continuous gradient HA coating could be obtained. HA coatings were characterized with a field emission-scanning electron microscopy (FE-SEM) and an X-ray diffraction (XRD). XRD indicated no significant HA decomposition when the coatings were sintered for 2 h at 800 degrees C.
authors.affiliation: Institute for Biomaterials Research & Development, Kyungpook National University, Daegu, South Korea.
authors.forename: Xianwei
authors.initials: X
authors.lastname: Meng
authors.forename: Tae-Yub
authors.initials: TY
authors.lastname: Kwon
authors.forename: Yunzhi
authors.initials: Y
authors.lastname: Yang
authors.forename: Joo L
authors.initials: JL
authors.lastname: Ong
authors.forename: Kyo-Han
authors.initials: KH
authors.lastname: Kim
mesh_terms: D020099:Coated Materials, Biocompatible / Q000737:chemistry; D017886:Durapatite / Q000737:chemistry; D004586:Electrophoresis; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry; D014961:X-Ray Diffraction
chemical_list: D020099:Coated Materials, Biocompatible; D017886:Durapatite; D014025:Titanium