公开(公告)号：US20170290641A1

公开(公告)日：2017-10-12

申请号：US15344918

申请日：2016-11-07

Applicant: HASS CO., LTD

Inventor： Yong Su KIM ,  Hyun Jun JEON ,  Hyung Bong LIM ,  Kyung Sik OH ,  Sung Ho HA ,  Young Pyo HONG ,  Joon Hyung KIM ,  Cheol Young KIM

IPC: A61C5/77 ,  C04B37/04 ,  C03C27/00 ,  A61C13/30 ,  A61C13/00 ,  A61C13/08 ,  A61C13/083 ,  A61C13/20 ,  C03C10/00 ,  A61C5/73

CPC classification number: A61C5/77 ,  A61C5/73 ,  A61C13/0004 ,  A61C13/082 ,  A61C13/083 ,  A61C13/20 ,  A61C13/30 ,  C03C3/097 ,  C03C4/0021 ,  C03C8/24 ,  C03C10/0009 ,  C03C27/00 ,  C03C2204/00 ,  C04B35/14 ,  C04B35/16 ,  C04B37/001 ,  C04B37/042 ,  C04B37/045 ,  C04B2235/3201 ,  C04B2235/3203 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3217 ,  C04B2235/3227 ,  C04B2235/3244 ,  C04B2235/3284 ,  C04B2235/34 ,  C04B2235/36 ,  C04B2235/445 ,  C04B2235/80 ,  C04B2235/9661 ,  C04B2237/10 ,  C04B2237/341 ,  C04B2237/348

Abstract: 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.