着色氧化物对牙科玻璃渗透氧化铝陶瓷颜色的影响  

The Influence of Different Metal Oxides on the Color of Dental Glass Infiltration Alumina Ceramics

作　　者：伊元夫[1] 温宁[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79-81,共3页Rare Metal Materials and Engineering

摘　　要：研究在La-B-si-Al-O玻璃系统中，添加不同浓度的着色氧化物CeO2、Er2O3及Fe2O3对牙科玻璃渗透氧化铝陶瓷颜色的影响。实验在1400℃下熔融2h制备着色渗透玻璃，并将玻璃于1120℃渗透入预烧结多孔氧化铝基体，采用分光光度计测定渗透后颜色参数。结果表明：CeO2可以明显提高渗透铝瓷的6^＊；加入CeO2和Er2O3后，随Er2O3含量的增大，渗透铝瓷颜色从黄绿色调向黄红色调偏移，同时三＋降低；再加入Fe2O3后，渗透铝瓷的三＋明显降低，颜色向黄红色调偏移较大。The effects of adding CeO2, Er203 and Fe203 in the La-B-Si-Al-O glass system on the color of dental glass infiltration alumina ceramics were investigated. The pigmented infiltration glass was prepared by melting glass component at 1400℃ for 2h. The colored glass was infiltrated in presintered porous alumina at 1120℃, and color parameters were measured by spectrophotometer. Experimental results showed cerium oxide could effectively enhance colourity（ b^＊ ） value of the dental glass infiltration alumina ceramics; combined addition of cerium oxide and erbium oxide could shift the color from yellow-green to yellow-red and reduce the brightness（ L^＊ ） value. When ferric oxide was added, L^＊ value was decreased and the color was shifted to yellow-red direction largely.

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]