C - Chemistry – Metallurgy – 03 – C
Patent
C - Chemistry, Metallurgy
03
C
261/20
C03C 10/12 (2006.01) C03C 3/085 (2006.01)
Patent
CA 2300967
In an Li2O-Al2O3-SiO2 transparent crystallized glass with .beta. -quartz solid solution precipitated as main crystals, the Li+ concentration ratio an at a position of 50nm from the surface of the glass is equal to 0.80 or less where the Li+ concentration at a position of 2000nm from the surface is supposed to be equal to 1.
L'invention concerne un verre cristallisé transparent du type Li2O-Al2O3-SiO2 précipitant une solution solide de quartz beta en tant que cristal principal, caractérisé en ce que le rapport de la concentration en Li<+> en un emplacement à 50 nm de la surface du verre, à la concentration en Li<+> en un emplacement à 2000 nm de la surface est égal ou inférieur à 0,80.
Sakamoto Akihiko
Yamada Hiroyuki
Dennison Associates
Nippon Electric Glass Co. Ltd.
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