齿科修复用氧化锆陶瓷的表面结构及力学性能  

Surface structure and mechanical properties of zirconia ceramics for dental restoration

作　　者：李晨曦 戚月明 徐强[1] 方圆 戚孟春 王景坤 LI Chenxi;QI Yueming;XU Qiang;FANG Yuan;QI Mengchun;WANG Jingkun(Department of Stomatology,Tangshan Maternal and Child Health Hospital,Tangshan 063000,Hebei,China;Department of Stomatology,Tangshan Vocational and Technical College,Tangshan 063000,Hebei,China;School of Stomatology,North China University of Technology,Tangshan 063000,Hebei,China)

机构地区：[1]唐山市妇幼保健院口腔科,河北唐山063000 [2]唐山职业技术学院口腔系,河北唐山063000 [3]华北理工大学口腔医学院,河北唐山063000

出　　处：《金属功能材料》2024年第5期94-100,共7页Metallic Functional Materials

基　　金：河北省医学科学研究重点课题计划项目(20231762)。

摘　　要：为提高氧化锆陶瓷材料在齿科修复中的应用效果,对氧化锆陶瓷表面结构及力学性能进行探究。将准备好的聚丙烯酸铵、氨水、盐酸、去离子水和无水乙醇进行预处理,再结合氧化锆粉末进行混合,利用压型机压实,再通过设定烧结炉的温度,制备出多个氧化锆陶瓷试样,并对其表面结构及力学性能进行分析。氧化锆陶瓷试样的表面结构会随着烧结温度的变化而发生变化。在硬度测试中,氧化锆陶瓷试样A006的硬度最大,数值为13.5 GPa;在抗弯强度测试中,氧化锆陶瓷试样A006的抗弯强度最大,数值为350 MPa;在断裂韧性测试中,氧化锆陶瓷试样A006的断裂韧性最大,数值为8.96 MPa·m^(1/2)。烧结温度会对氧化锆陶瓷的表面结构及力学性能造成影响。当烧结温度为1700℃时,氧化锆陶瓷的力学性能最佳。To improve the application effect of zirconia ceramic materials in dental restoration,the surface structure and mechanical properties of zirconia ceramics were investigated.Prepare ammonium polyacrylate,ammonia water,hydrochloric acid,deionized water,and anhydrous ethanol for pre-treatment,then mix them with zirconia powder,compact them using a molding machine,and prepare multiple zirconia ceramic samples by setting the sintering furnace temperature.Analyze their surface structure and mechanical properties.The surface structure of zirconia ceramic samples will change with the change of sintering temperature.In the hardness test,the hardness of zirconia ceramic sample A006is the highest,with a value of 13.5GPa.In the bending strength test,the A006zirconia ceramic sample has the highest bending strength,with a value of 350MPa.In the fracture toughness test,the fracture toughness of zirconia ceramic sample A006is the highest,with a value of 8.96MPa·m^(1/2).Sintering temperature can affect the surface structure and mechanical properties of zirconia ceramics.When the sintering temperature is 1700℃,the mechanical properties of zirconia ceramics are optimal.

关 键 词：齿科修复 氧化锆陶瓷 陶瓷 表面结构 力学性能 

分 类 号：R783.1[医药卫生—口腔医学]