牙科着色玻璃渗透氧化铝陶瓷的性能研究  

Properties of Dental Alumina Ceramics Infiltrated with Colored Glass

作　　者：温宁[1] 伊元夫[1] 张薇薇[1] 刘洪臣[1] 田杰谟[2] 

机构地区：[1]解放军总医院,北京100853 [2]清华大学新型陶瓷与精细工艺国家重点实验室,北京100084

出　　处：《稀有金属材料与工程》2007年第A02期82-84,共3页Rare Metal Materials and Engineering

摘　　要：在1400℃下熔融2 h制备4种定制颜色的着色渗透玻璃,并将玻璃于1120℃渗透入预烧结氧化铝多孔基体,采用分光光度计测定渗透后的透射比和颜色参数,渗透后的复合材料作三点弯曲强度及断裂韧性测试,断裂面进行扫描电镜观察。结果表明:玻璃渗透后铝瓷的颜色参数范围:L~*:68.80～78.44,a~*:1.32～4.75,b~*:16.86～21.86。三点弯曲强度为(420±27.72)MPa,断裂韧性为(3.70±0.13)MPa·m^(1/2)。In the La-B-Si-Al-O glass system, 4 custom loading pigments were added, and infiltration glass was prepared by melting glass compon .ts at 1400℃ for 2h. The colored glass was infiltrated in presintered porous alumina at 1120℃. Color parameters and spectra transmittance were measured by spectrophotometer, three-point bending strength and fracture toughness were tested of the composites, and the microstructure of fracture surface was observed by scanning electron microscope. Experimental results showed that the color parameters of infiltration alumina ceramics were L^＊：68.80-78.44, a^＊： 1.32-4.75, b^＊： 16.86-21.86. Three-point bending strength and fracture toughness were （420±27.72）MPa, （3.70±0.13） MPa·m^1/2, respectively.

关 键 词：牙科陶瓷 氧化铝 玻璃 颜色 

分 类 号：R783[医药卫生—口腔医学]