摘要
目的:研究K_2O-Na_2O-Al_2O_3-SiO_2系统牙科微晶玻璃匹配氧化铝陶瓷的热处理温度制度。方法:根据氧化铝陶瓷的热膨胀系数调整K_2O-Na_2O-Al_2O_3-SiO_2系统牙科微晶玻璃的原材料配比,利用K_2O-Na_2O-Al_2O_3-SiO_2系统牙科微晶玻璃的热处理温度制度形成微晶玻璃-氧化铝陶瓷复合材料;利用偏振光显微镜和X射线衍射分析仪观察样品的形态及显微结构特性,利用材料试验机测试材料的抗压强度。结果:经过原材料组份的调整,白榴石晶粒约1.0μm、在玻璃基质中分布均匀;微晶玻璃-氧化铝陶瓷复合材料的抗压强度为500MPa。结论:K_2O-Na_2O-Al_2O_3-SiO_2系统牙科微晶玻璃的热处理温度制度适合匹配氧化铝陶瓷。
Objective：Research the thermal treatment schedule of K2O-Na2O-Al2O3-SiO2 system dental glass ceramics matching Al2O3 ceramics.Methods：Select and analysis the raw material according to K2O-Na2O-Al2O3-SiO2 system,produce glass- Al2O3 composite ceramic material.The products were analyzed by polaring microscope and X-ray diffractometer,the compressive strength was tested by material machine.Results：Leucite microcrystal was about 1.0μm,distributed in the glass matrix evenly;The compressive strength was about 460 MPa,even the interface of glass combined with Al2O3 ceramics need in-depth exploration.Conclusion：K2O-Na2O-Al2O3-SiO2 system dental glass ceramics can be sintered and match Al2O3 ceramics with special thermal treatment schedule.
出处
《口腔医学研究》
CAS
CSCD
北大核心
2016年第11期1150-1152,共3页
Journal of Oral Science Research
基金
武汉市科技攻关计划项目(编号:201262523841)
