|
|||||
|
|
Dynamics of Gradient Bioceramic Composite Coating on Surface of Titanium Alloy by Wide-Band Laser Cladding |
|
| Authors: | LIU Qi-bin ZOU Long-jiang ZHU Wei-dong LI Hai-tao DONG Chuang |
| Affiliation: | 1. Dalian University of Technology, Dalian 116024, China; Guizhou University of Technology, Guiyang 550003, China 2. Dalian University of Technology, Dalian 116024, China 3. Guizhou University of Technology, Guiyang 550003, China |
| Abstract: | The gradient bioceramic coating was prepared on the surface of titanium alloy using wide-band laser cladding. The dynamics of gradient bioceramic composite coating containing hydroxyapatite (HA) prepared with mixture of CaHPO4*2H2O and CaCO3 under the condition of wide-band laser was studied theoretically. The corresponding mathematical model and its numerical solution were presented. The examination experiment showed that HA bioceramic composite coatings can be obtained by appropriately choosing wide-band laser cladding parameters. The microstructure and surface morphology of HA bioceramic coating were observed by SEM and X-ray diffraction. The experimental results showed that the bioceramic coating is composed of HA, β-TCP, CaO, CaTiO3 and TiO2. The surface of bioceramic coating takes coral-shaped structure or short-rod piled structure, which helps osteoblast grow into bioceramic and improves the biocompatibility. |
| Keywords: | wide-band laser cladding bioceramic composite coating dynamics |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |