NiO对3Y-TZP陶瓷材料性能的影响  

Effect of NiO Additive on the Properties of 3Y-TZP Ceramics

作　　者：陈涵[1] 徐明扬[1] 郭露村[1] 

机构地区：[1]南京工业大学材料科学与工程学院,江苏南京210009

出　　处：《稀有金属材料与工程》2007年第A01期241-243,共3页Rare Metal Materials and Engineering

摘　　要：研究了少量NiO(0.25mol%～1mol%)添加剂对3Y-TZP陶瓷材料烧结和力学性能的影响。实验结果表明:掺杂NiO可以促进3Y-TZP的烧结,并提高材料的力学性能,但添加过量则对烧结和力学性能不利。经过1400℃,2h烧成后,掺有0.5mol%NiO的试样和掺有0.75mol%NiO的试样分别具有最高的抗弯强度和断裂韧性,其值分别为419MPa和10.0MPa·m1/2。与同样条件下制备出的纯3Y-TZP相比,试样的抗弯强度和断裂韧性分别提高了22%和47%。The effect of small amount （0.25 mol%-1 mol%） of NiO additive on the sinterability and mechanical properties of 3Y-TZP was investigated. It was shown that NiO additive enhanced both the sinterability and mechanical properties, but too much additive had negative influence on the properties of 3Y-TZP. The specimens doped with 0.5 mol% and 0.75 mol% NiO sintered at 1400 ℃ for 2h exhibited the maximum strength of 419 MPa and toughness of 10.0 MPa·m^1/2, respectively. Compared with monolithic 3Y-TZP, the strength and toughness was improved by 22% and 47%, respectively.

关 键 词：TZP NIO 烧结性能 力学性能 

分 类 号：TQ174.1[化学工程—陶瓷工业]