文档介绍：
YAG 陶瓷牙齿正畸托槽的制备和力学性能
研究#
卢忠文1,卢铁城1,2,陈兴涛1,张伟1,3,关永兵1,魏念1,韦建军1,齐建起1**
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(1. 四川大学物理系和辐射物理及技术教育部重点实验室,四川成都 610064;
2. 四川大学高能量密度物理及技术教育部重点实验室,四川成都 610064;
3. 西南技术物理研究所)
摘要:利用共沉淀法合成 YAG 纳米粉体,随后两步真空烧结制备光学质量良好的 YAG 陶
瓷托槽,分别采用 XRD、SEM 和万能试验机测试 YAG 陶瓷托槽的物相、微观结构和力学
性能。所制备的 YAG 陶瓷托槽的晶粒细小约 3um,压缩强度约为 376MPa,其中晶界增多
是导致 YAG 陶瓷托槽力学提高的主要原因。采用纳米技术和两步真空烧结技术制备的 YAG
陶瓷托槽有很大发展潜力。
关键词: YAG;陶瓷托槽;力学性能;微观结构;两步真空烧结
中图分类号:TQ174
Preparation and Mechanical Properties of YAG Ceramic
Brackets
LU Zhongwen1, LU Tiecheng1,2, CHEN Xingtao1, ZHANG Wei1,3, GUAN Yongbing1,
WEI Nian1, WEI Jianjun1, QI Jianqi1
(1. Department of Physics and key Laboratory of Radiation Physics and Technology of Ministry
of Education , Sichuan University,Sichuan Chengdu 610064;
2. Key Laboratory of High Energy Density Physics and Technology, Ministry of Education,
Sichuan University, Sichuan Chengdu 610064;
3. Southwest Institute of Technical Physics, Chengdu 610041)
Abstract: YAG nano-powders were synthesized by co- precipitation method, followed the high-quality
YAG ceramic brackets were fabricatedby two - stage vacuum Sintering. The ceramic brackets were
characterized by XRD, SEM and universal testing machines. The results show that the
the grain size
of ceramic brackets was about 3 um, and the value pression strength was about 376 Mpa. The
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higher mechanica lproperties of YAG cera