钛专用遮色瓷研制及其性能研究  

Synthesis and characterization of titanium opaque porcelain

作　　者：郭立童[1,2] 邓长城[3] 王瑶[2] 谢海峰[2] 朱亚波[2] 许程[2] 郭天文[4] 

机构地区：[1]中国矿业大学机电工程学院 [2]中国矿业大学材料科学与工程学院 [3]73909部队火炮教研室 [4]第四军医大学

出　　处：《功能材料》2011年第10期1861-1863,1868,共4页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(81100789);中国博士后科学基金资助项目(20100481173);高等学校博士学科点专项科研基金资助项目(20090095120017);中国矿业大学青年科研基金资助项目(2009A057)

摘　　要：采用二氧化锡系微晶玻璃制备低熔钛专用遮色瓷,研究了遮色瓷组成与热膨胀系数的关系,通过对比烧结温度、力学性能与热膨胀系数等性能,最终确定遮色瓷配方和烧结工艺;采用XRD、SEM、细胞毒性和溶血实验分别研究了钛遮色瓷的晶相组成、显微形貌和生物相容性。结果表明所研制的遮色瓷为含有锡石晶体相的微晶玻璃;其最佳烧结温度为780℃;在25～350℃,其平均线热膨胀系数为8.9×10-6/℃;所研制的钛遮色瓷细胞毒性为0级,不引起溶血反应,具有良好的生物相容性。The titanium opaque porcelain was synthesized through normal melting-derived route using SnO2 glass-ceramic system.The porcelain was characterized by thermal expansion,X-ray diffraction and cytotoxicity tests.The results of XRD showed that the main crystal phase of the opaque porcelain was SnO2.Its＇ average coefficient of thermal expansion（α25-350） was 8.9×10-6/℃,which was lower than that of bonding porcelain（9.2×10-6/℃） and pure titanium（9.5×10-6/℃）.The optimal fusion temperature was 780℃.The methyl thiazolyl tetrazolium assay results demonstrated that the cytotoxicity of the titanium porcelain was ranked as 0.At the same time,the titanium porcelain did not result in hemolysis.It was believed that the titanium opaque porcelain synthesized in this research was a biocompatible material and could be used for dental implant materials.

关 键 词：钛 遮色瓷 生物相容性 牙科材料 

分 类 号：R783.1[医药卫生—口腔医学]