Collard & Roe, P.C.
Li2O-Al2O3-SiO2 type transparent crystallized glass
In an Li2O&#8212;Al2O3&#8212;SiO2 transparent crystallized glass with &bgr;-quartz solid solution precipitated as main crystals, the Li+ concentration ratio an at a position of 50 nm from the surface of the glass is equal to 0.80 or less where the Li+ concentration at a position of 2000 nm from the surface is supposed to be equal to 1.
Nippon Electric Glass Co., Ltd.
C
C03C
inventional
Hiroyuki Akihiko
Yamada Sakamoto