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| 纳米二氧化硅对氟硅云母玻璃陶瓷强度的影响 | |
| 引用本文： | 张雅丽,张少锋,杨彦伟,梅凤喜. 纳米二氧化硅对氟硅云母玻璃陶瓷强度的影响[J]. 中华老年口腔医学杂志, 2011, 9(4): 196-200 |
| 作者姓名： | 张雅丽 张少锋 杨彦伟 梅凤喜 |
| 作者单位： | 1. 第四军医大学口腔医院 陕西 710032 2. 第四军医大学口腔医院 710032 3. 清华大学材料系 北京 100084 |
| 摘 要： | 目的:提高以云母为主晶相的牙科用可切削玻璃陶瓷氟硅云母玻璃陶瓷材料强度.方法:在氟硅云母玻璃原料粉中使用纳米二氧化硅(粒径7nm),制备氟硅云母玻璃陶瓷,用扫描电镜观察其显微结构,X线衍射确定物象组成及含量,测定样本的抗弯强度和断裂韧性,并与普通氟硅云母玻璃陶瓷材料进行比较.结果:使用纳米二氧化硅(纳米组)和普通氟硅云... |
| 关 键 词： | 氟硅云母玻璃陶瓷 纳米材料 力学性能 |
Influence of nano-SiO2 on the strength of fluorosilicatemica glass-ceramics |
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| ZHANG Ya-li,ZHANG Shao-feng,YANG Yan-wei,MEI Feng-xi. Influence of nano-SiO2 on the strength of fluorosilicatemica glass-ceramics[J]. Chinese JOurnal of Geriatric Dentistry, 2011, 9(4): 196-200 | |
| Authors: | ZHANG Ya-li ZHANG Shao-feng YANG Yan-wei MEI Feng-xi |
| Affiliation: | ZHANG Ya-li,ZHANG Shao-feng,YANG Yan-wei,MEI Feng-xi.(School of Stomatology Fourth Military Medical University Shanxi 710032,China) |
| Abstract: | Objective:To improve the strength of machinable fluorosilicate mica glass-ceramics for dental restorations.Methods:Nano SiO2 powder(particle size 7nm) was used to prepare a type of fluorosilicic mica glass.SEM and XRD were used to evaluate the material.Flexural strength and fracture toughness were compared with normal ceramic.Results:Flexural strength and fracture toughness of specimens fabricated with nano-SiO2 powder were respectively 34% and 23% higher compared with normal glass-ceramic.The crystalline p... |
| Keywords: | Fluorosilicate mica glass-ceramics Nano-material Mechanical strength |
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