Flexural strength and translucent characteristics of lithium disilicate glass-ceramics with different P2O5 content

被引：66
|
作者：
Wang, Fu [1 ]
Gao, Jing [1 ]
Wang, Hui [1 ]
Chen, Ji-hua [1 ]
机构：
[1] Fourth Mil Med Univ, Sch Stomatol, Dept Prosthodont, Xian 710032, Peoples R China
来源：
MATERIALS & DESIGN | 2010年 / 31卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Ceramic; Mechanical; Selection for material properties; HEAT-TREATMENT; CRYSTALLIZATION; MICROSTRUCTURE; NUCLEATION; SYSTEMS;
D O I：
10.1016/j.matdes.2010.02.013
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Lithium disilicate glass-ceramics derived from the SiO2-Li2O-K2O-Al2O3-ZrO2-P2O5 system with different P2O5 content (from 0.5 mol.% to 2.0 mol.% at a step of 0.5 mol.%) were prepared for dental restorative application. Flexural strength of final glass-ceramics and translucent characteristics expressed in term of contrast ratio (CR) were measured. The interrelations between P2O5 content, microstructure and properties were discussed. Glass-ceramic with a P2O5 content of 1.0 mol.%, in which elongated rod-like Li2Si2O5 crystals formed an interlocking microstructure, showed the highest flexural strength and suitable contrast ratio for dental restorative application. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3270 / 3274
页数：5
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