Preliminary Study on Combining K2O-Al2O3-SiO2 System Dental Glass Ceramic with Al2O3 Ceramic

被引：0
|
作者：
Wu Qiqi [1 ]
Xu Yujing [1 ]
Jin Fengchao [1 ]
Zhang Biao [1 ]
机构：
[1] Wuhan Univ, Hosp Stomatol, Wuhan 430079, Peoples R China
来源：
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2017年 / 32卷 / 02期
关键词：
glass ceramics; Al2O3; ceramics; composite ceramic material; compressive strength; STRENGTH;
D O I：
10.1007/s11595-017-1623-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Relationship between K2O-Al2O3-SiO2 system dental glass ceramics and Al2O3 ceramics was investigated. 4 groups of glass ceramic with the same components but different thickness (0.8, 1.2, 1.6, and 2.0 mm) were sintered on Al2O3 base ceramics according to the same thermal treatment system of leucite micro-crystallization reported in previous literatures. The products of each group were analyzed by polarizing microscope, X-ray diffractometer, and an INSTRON material testing machine. Under the thermal treatment system, leucite crystals were formed in samples of each group, and dispersed evenly. Meanwhile, the compressive strengths of group 3 and group 4 were higher than those of group 1 and group 2. Samples of group 3 showed better mechanical properties than others. The conclusions are drawn that Leucite crystals can be controlled in K2O-Al2O3-SiO2 system glass ceramic-Al2O3 ceramic composite material, and the thickness of glass ceramic has a notable influence on the compressive strength of this ceramic composite material.
引用
收藏
页码：491 / 493
页数：3
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