摘要
以K2O-MgO-Al2O3-SiO2-F系统的微晶玻璃为基础,与不同量的Y-TZP粉体进行复合,制备出了用于牙科修复的新型全瓷材料。借助于DTA,XRD,SEM等对该材料的主晶相种类和显微结构进行了研究,并测试了复合材料的抗折强度、体积密度、维氏硬度、热膨胀系数和耐酸(碱)性等理化性能。实验结果表明:复合材料的主晶相为氟金云母、t-ZrO2和少量的m-ZrO2;其具有优于天然牙齿和牙釉质的力学性能,化学性能稳定、审美效果良好,适用于制作前牙冠、贴面、嵌体等口腔修复体。
In this work, a kind of new composites for dental restorations was prepared by adding Y- TZP powder to K2O-MgO-Al2O3-SiO2-F system by melting method. The principle crystalline phase in the composites, fluophlogopite t-ZrO2 and m-ZrO2, were identified with the help of DTA, SEM, XRD. Besides, the strength bulk density, rigidity and chemical stability of the compositions were tested. The results show that the composites have fine physical and chemical properties and aesthetics effect. Therefore, the composites are expected to be used for producing front dental crown veneer restoration or embedded body.
出处
《中国陶瓷》
CAS
CSCD
北大核心
2005年第5期17-20,共4页
China Ceramics
基金
陕西科技大学自然科学基金项目资助
编号:zx04-15
关键词
云母做晶玻璃
氧化锆
牙科材料
mica-based glass-ceramic, zirconia, dental material
作者简介
夏傲（1981-）女，研究生，助教。
