Title:
CRYSTALLIZED GLASS
Document Type and Number:
Japanese Patent JP2021172547
Kind Code:
A
Abstract:
To provide a crystallized glass that has a high fracture toughness value and also has excellent transparency.SOLUTION: Crystallized glass contains, in mass%, SiO2 40-70%, Al2O3 5-40%, B2O3 2-25%, MgO+ZnO 0-15%, CaO+SrO+BaO 0-20%, P2O5+TiO2+ZrO2 0-8%, Na2O+K2O 1-20%, and Li2O 0-6%. The crystallized glass also has a crystallinity of 1%-50%, a thickness of 0.8 mm, and an average visible light transmittance of at least 50% at wavelengths of 380-780 nm.SELECTED DRAWING: None
Inventors:
MATANO TAKAHIRO
YOKOTA YUKI
TANAKA ATSUSHI
TAKAYAMA YOSHIHISA
YOKOTA YUKI
TANAKA ATSUSHI
TAKAYAMA YOSHIHISA
Application Number:
JP2020076603A
Publication Date:
November 01, 2021
Filing Date:
April 23, 2020
Export Citation:
Assignee:
NIPPON ELECTRIC GLASS CO
International Classes:
C03C10/02; C03C10/04; C03C10/06; C03C21/00