注浆成型制备YAG陶瓷牙齿正畸托槽.doc

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注浆成型制备 YAG 陶瓷牙齿正畸托槽#
关永兵1,卢铁城1,2,张伟1,卢忠文1,陈兴涛1,魏念1,韦建军1,齐建起1**
(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;
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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)
摘要:以聚丙烯酸(PAA)做分散剂和粘接剂,采用注浆成型工艺和真空烧结技术制备了光学
质量良好的 YAG 陶瓷托槽。通过 SEM、流变仪分别对粉体、托槽坯体及浆料进行了表征。
结果表明:用聚丙烯酸的质量分数 2wt%,固相含量为 60wt%的 YAG 浆料可以得到均匀的
坯体,再经过两步真空烧结制备出高质量的陶瓷托槽。采用聚丙烯酸做分散剂和粘接剂进行
注浆成型是一种很有发展潜力的透明陶瓷托槽成型方法。
关键词: YAG;陶瓷托槽;聚丙烯酸;黏度;真空烧结
中图分类号:TQ174
Fabrication of YAG YAG Ceramics Brackets using Slip
Casting
GUAN Yongbing1, LU Tiecheng1,2, ZHANG Wei1, LU Zhongwen1, CHEN Xingtao1,
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)
Abstract: High-quality YAG ceramics brackets were fabricated by vacuum sintering technique
using the slip casting using Polyacrylic acid (PAA) as dispersant and binder. The powders,
suspension and brackets green body were characterized by SEM and Rheometer. The results show
that the good green bodies can be obtained from slurries with 2wt% of PAA and with 60wt% of
solid content. High-quality YAG ceramics brackets were fabricated by two-step vacuum sintering
technique. It can be expected that the cas