Hydroxyapatite and Bioactive Glass Composite Coating on Ti6Al4V

Rui Lin Du; Shao Xian Zeng; Yu Huai Wu; Xing Hui Xie

doi:10.4028/www.scientific.net/KEM.330-332.589

Paper Titles

The Study of Surface Energy, Electrical Properties and Platelet Adhesion Behavior of a-C/a-CN Films Synthesized by PIII-D
p.573

The Bevavior of Ceramic Coating on Titanium Using Chemical and Electrochemical Deposition
p.577

The Influence of Bovine Serum Albumin on the Biomimetic Calcium Phosphate Coating of Bioactivated Titanium
p.581

Biomimetic Synthesis of a Strontium-Substituted Apatite Coating Grown on Ti₆Al₄V Substrate
p.585

Hydroxyapatite and Bioactive Glass Composite Coating on Ti₆Al₄V
p.589

Biocompatability of Precipitation-Enhancing Anodic Oxidation on Titanium as Implant Material
p.593

The Effects of Ion Beam-Assisted Deposition of Hydroxyapatite on the Osseointegration of Endosseous Implant Surface
p.597

Morphologies of Hydroxyapatite Crystal Deposited on Titanium Surface with Electrochemical Technique
p.601

The Surface Valence Band Structure and Hemocompatibility of Rutile Titanium Oxide Films
p.605

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Hydroxyapatite and Bioactive Glass Composite Coating on Ti₆Al₄V

Abstract:

Hydroxyapatite (HA) was widely used as coating on metals and alloys to enhance the interconnection between metal implants and bone. To improve the bonding strength and bioactivity, in this work, bioactive glass (G) was added and HA-G composite coating was prepared on Ti-6Al-4V at low temperature. The scanning electronic microscope (SEM) graphs showed that the surface of the coating was composed with needle-like crystals, and the X-ray diffractometer (XRD) and Fourier transform infra-red spectrometry (FTIR) results proved that the crystals was carbonate hydroxyapatite (CHA), no other crystal phase was detected. The SEM micrographs of the cross section showed that the coating was porous and bonded closely with the surface of the alloy. The energy diffraction spectra (EDS) result show that a Si-Ti-Al-V-O layer was formed at the interface and enhance the interconnection between the coating and alloy. The bonding strength of the coating was 34.8±6.8MPa, which was much higher than that of the pure HA coating on Ti-6Al-4V prepared by plasma spraying method. The HA-G composite coating on Ti-6Al-4V showed high bonding strength, porous structure, and bone like CHA composition, which has good potential to be used as bone substitutes.