tailieunhanh - Summary of Chemistry doctoral thesis: Electrodeposition of hydroxyapatite/modify carbon nanotubes coating on alloys to apply for bone implants

Objectives of the thesis: Selecting of suitable conditions to synthesize HAp-CNTsbt nanocomposite coating on 316LSS and Ti6Al4V; HAp-CNTbt coating has biocompatibility and protection ability for the substrate in comparison with HAp coating. | GRADUATE UNIVERSITY OF SCIENCE AND TECHNOLOGY INSITUTE FOR TROPICAL TECHNOLOGY SUMMARY OF PhD THESIS IN CHEMISTRY ELECTRODEPOSITION OF HYDROXYAPATITE MODIFY CARBON NAOTUBES ON ALLOYS TO APPLY FOR BONE IMPLANTS Specialization Theoretical and Physical chemistry Code 9 44 01 19 Hanoi 2019 1 The dissertation completed at Academic supervisors 1. 2. Reviewer 1 Reviewer 2 Reviewer 3 2 INTRODUCTION Reason to choose the topic Hydroxyapatite Ca10 PO4 6 OH 2 HAp is the main inorganic component in human bones and teeth has high biocompatibility. HAp is applied in medicine with different forms powder ceramic composite and coating. Synthetic HAp has the same composition in natural bone and has good biocompatibility. However pure HAp coating has a relatively high solubility in physiological environment and poor mechanical properties leading to faster degradation of the material and reducing the fixed ability between the implant material and the host tissue. Some reports show that the doping of carbon nanotubes to create HAp- CNTcomposite significantly improves the mechanical properties of materials such as corrosion resistance and mechanical strength. The thesis quot Electrodeposition of hydroxyapatite modify carbon nanotubes coating on alloys to apply for bone implants quot shows investigation to synthesize HAp-CNTsbt coating on 316LSS and Ti6Al4V. Objectives of the thesis - Selecting of suitable conditions to synthesize HAp-CNTsbt nanocomposite coating on 316LSS and Ti6Al4V. - HAp-CNTbt coating has biocompatibility and protection ability for the substrate in comparison with HAp coating. Main content of the thesis 1. Study on effect of the scanning potential range scanning rate number of scans CNTbt amount and synthesis temperature on the characteristics of HAp-CNTbt coating. Selecting of suitable conditions for synthesie HAp-CNTbt 316LSS and HAp-CNTbt Ti6Al4V materials. 2. Determination of roughness elastic modulus and hardness of 316LSS Ti6Al4V HAp 316LSS HAp Ti6Al4V .

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