SILICATE GLASS, METHOD FOR PREPARING SILICATE GLASS-CERAMICS BY USING THE SILICATE GLASS, AND METHOD FOR PREPARING NANO LITHIUM DISILICATE GLASS-CERAMICS BY USING THE SILICATE GLASS
Yong Su KIM,Hyun Jun JEON,Hyung Bong LIM,Kyung Sik OH,Sung Ho HA,Young Pyo HONG,Joon Hyung KIM,Cheol Young KIM
申请号：
US15344918
公开号：
US20170290641A1
申请日:
2016.11.07
申请国别(地区):
US
年份:
2017
代理人:
摘要：
Provided is a silicate glass, a method for preparing a silicate glass-ceramics by using the silicate glass, and a method for preparing a lithium disilicate glass-ceramics by using the silicate glass, and more particularly, to a method for preparing a glass-ceramics that has a nanosize of 0.2 to 0.5 μm and contains lithium disilicate and silicate crystalline phases. A nano lithium disilicate glass-ceramics containing a SiO2 crystalline phase includes: a glass composition including 70 to 85 wt % SiO2, 10 to 13 wt % Li2O, 3 to 7 wt % P2O5 working as a nuclei formation agent, 0 to 5 wt % Al2O3 for increasing a glass transition temperature and a softening point and enhancing chemical durability of glass, 0 to 2 wt % ZrO2, 0.5 to 3 wt % CaO for increasing a thermal expansion coefficient of the glass, 0.5 to 3 wt % Na2O, 0.5 to 3 wt % K2O, and 1 to 2 wt % colorants, and 0 to 2.0 wt % mixture of MgO, ZnO, F, and La2O3.
