氧化物着色剂对3Y-TZP陶瓷色度及力学性能的影响  

Influence of Oxide Colorant on Chromaticity and Mechanical Properties of 3Y-TZP Ceramics

作　　者：王兴明 王焕平 刘思琪 杨清华 雷若姗 肖珍 徐时清 WANG Xingming;WANG Huanping;LIU Siqi;YANG Qinghua;LEI Ruoshan;XIAO Zhen;XU Shiqing(College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018, China)

机构地区：[1]中国计量大学材料科学与工程学院,杭州310018

出　　处：《机械工程材料》2018年第4期48-52,共5页Materials For Mechanical Engineering

基　　金：浙江省自然科学基金重点资助项目(LZ14B010001)

摘　　要：在钇稳定四方相氧化锆(3Y-TZP)粉体中分别添加不同质量分数的Fe_2O_3、Pr_6O_(11)、Er_2O_3、CeO_2等氧化物着色剂粉体,在1 500℃保温2h烧结制备3Y-TZP陶瓷,分析了不同氧化物着色剂对3Y-TZP陶瓷着色效果及力学性能的影响.结果表明:添加氧化物着色剂后,陶瓷的主晶相仍均为四方相氧化锆,晶粒紧密堆积,平均晶粒尺寸为200~500nm;随着着色剂添加量的增加,陶瓷的抗弯强度均下降,但均保持在800 MPa以上,满足牙科口腔修复材料的要求;添加4种氧化物着色剂后,陶瓷表面色泽均匀、正反面色差小,添加Fe_2O_3、Pr_6O_(11)、CeO_2的陶瓷均呈黄色,添加Er_2O_3的陶瓷呈粉红色;Fe_2O_3与Er_2O_3的添加对陶瓷的a*值影响较大,而Pr_6O_(11)和CeO_2的添加对b*值影响较大.3 Y-TZP ceramics were sintered at 1 500 ℃ for 2 hby adding different mass fractions of oxide colorant powders of Fe2O3,Pr6O11,Er2O3,CeO2,respectively,to yttrium-stabilized tetragonal zirconia（3 YTZP）powder.The influence of different oxide colorants on the coloring and mechanical properties of 3 Y-TZP ceramics was discussed.The results show that after the addition of the oxide colorants,the main crystal phase of the ceramics was still tetragonal zirconia,and the crystal grains were closely packed with an average grain size of 200-500 nm.With the increase of the colorant addition,the flexural strength of all the ceramics decreased,but was maintained above 800 MPa,meeting the requirements of clinical dental restoration materials.The ceramics with the four oxide colorants had a uniform surface color and the color difference between the upper and down side was small.The color of the ceramics was yellow with addition of Fe2O3,Pr6O11 or CeO2 and pink with addition of Er2O3.The influence of the addition of Fe2O3 and Er2O3 on the value of a＊of the ceramics was relatively great,and the addition of Pr6O11 and CeO2 affected the value of b＊greatly.

关 键 词：3Y-TZP陶瓷 氧化物着色剂 色度 力学性能 

分 类 号：TQ174.75[化学工程—陶瓷工业]