Effect of Process Conditions on Microstructure and Properties of Bioactive Glass
The bioactive glass is used widely as bone-repairing material due to its excellent bioactivity, biocompatibility and the function for bone restoration, which depended, to a great extent, on the composition, microstructure of the glass and the process conditions. In this study, effect of process conditions (the melting temperature and time) on compositions, microstructure and the properties of bioactive glass was analyzed using EDS, Density measurement, XRD and FTIR techniques. The results indicated that compositions and microstructure changed because of the selective evaporation of constituent and the change in homogeneity of components.The bioactivities of the glasses prepared under different process conditions were characterized by immersing the glass particles in simulated body fluid (SBF) combined with FTIR technique. The results indicated that hydroxyl-carbonate-apatite (HCA) layer formed on the surface of the samples after 24 hours soaking in SBF. A quantitative method was used to compare the bioactivity of samples. It indicated the different preparation processes had influence on the bio-mineralization properties. Then the optimal preparation condition (1450℃, 30min) was obtained.
Bioactive Glass Melting Method Bio-mineralization
Xiaofeng CHEN Jing HU Naru ZHAO Yongchun MENG Yuli LI
Biomaterials Research Institute, College of Materials Science and Engineering, The key Laboratory of Biomedical Engineering Academy, Wenzhou Medical College, Zhejiang 325027, China
国际会议
重庆
英文
1059-1065
2008-06-09（万方平台首次上网日期，不代表论文的发表时间）