【摘要】 本文采用高温粘度计、高温显微镜和扫描电镜研究了B₂O₃、A1₂O₃和R₂O组分对CaO-SiO₂-P₂O₅系统生物微晶玻璃的熔制过程、熔融特性、相变和显微结构的影响。结果发现:该系统玻璃在高温范围有相变（分相或析晶）发生,玻璃熔体有特殊的粘度温度曲线,适当添加某些组分,可以改善熔制特性、控制相交范围和微观结构。更多还原

【Abstract】 High temperature rotation viscometer,high temperature microscope and scanning elec- tron microscope was used to study the effects of the constituents, such as B₂O₃,A1₂O₃and Na₂O,on the melting proccss, fusion propcrty,phase transformation and microstructure in CaO-SiO₂-P₂O₅system bioglass--ceramics.It was found that the phase transformation of the system occurcd in high temperature range and the glass melts have spccial temperture dependence of viscosity curves. Proper additions or the constituents to the glass system can improve the melting property,and control the range of phase transforma- hon and micfostIucture.更多还原