An electrodeposition technique was developed for fabricating bioactive hydroxyap-atite(HA) coating on Ti-6Al-4V alloy at relative low temperature. XRD, SEM and ICP/AES were used to characterize the structure, morpholo...An electrodeposition technique was developed for fabricating bioactive hydroxyap-atite(HA) coating on Ti-6Al-4V alloy at relative low temperature. XRD, SEM and ICP/AES were used to characterize the structure, morphology and chemical composition of the coatings. The galvanostatic electrodeposted HA coating is of 1.62 Ca/P molar ratio and has a uniform and porous structure, which is similar with the structure and composition of hu-man bone. The reaction mechanism and influence of experimental conditions on HA coatings are also discussed.展开更多
Surface enhanced raman spectrosscopy (SERS)has been used to studey the electrochemical coadsorption of TU at silver electrodes in solutions containing nitric acid ,sulphuric acid and perchloric acid respectively or an...Surface enhanced raman spectrosscopy (SERS)has been used to studey the electrochemical coadsorption of TU at silver electrodes in solutions containing nitric acid ,sulphuric acid and perchloric acid respectively or any two of them.It was found that these different anions can be induce-coadsorbed simultaneously on the silver surface through the protonated amino group of TU in the mixed acids ysstem.The coadsorption ability of the anions are in the order of So>NO?CLO at the potentials of at the potentials of The stability of TU on the surface of Agelectrode depends not only on the electrode potential but also on the nature of electrolyte anions coadsopbed.展开更多
文摘An electrodeposition technique was developed for fabricating bioactive hydroxyap-atite(HA) coating on Ti-6Al-4V alloy at relative low temperature. XRD, SEM and ICP/AES were used to characterize the structure, morphology and chemical composition of the coatings. The galvanostatic electrodeposted HA coating is of 1.62 Ca/P molar ratio and has a uniform and porous structure, which is similar with the structure and composition of hu-man bone. The reaction mechanism and influence of experimental conditions on HA coatings are also discussed.
文摘Surface enhanced raman spectrosscopy (SERS)has been used to studey the electrochemical coadsorption of TU at silver electrodes in solutions containing nitric acid ,sulphuric acid and perchloric acid respectively or any two of them.It was found that these different anions can be induce-coadsorbed simultaneously on the silver surface through the protonated amino group of TU in the mixed acids ysstem.The coadsorption ability of the anions are in the order of So>NO?CLO at the potentials of at the potentials of The stability of TU on the surface of Agelectrode depends not only on the electrode potential but also on the nature of electrolyte anions coadsopbed.
