CLAD GLASS FOR OPTICAL FIBER

PURPOSE:To improve weldability to core glass and chemical durability by incorporating SiO2, PbO, Al2O3, B2O3, Li2O, Na2O, and K2O. CONSTITUTION:A mixture is prepared by mixing 55-75% (by weight, the same applies to the following) SiO2, 3-15% PbO, 0-10% Al2O3, 0-10% B2O3, 0-15% Li2O, 0-20% Na2O, and...

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Bibliographic Details
Main Authors TOKITA MINORU, TAJIMA HIDEMI, YAMASHITA TOSHIHARU
Format Patent
LanguageEnglish
Published 21.01.1991
Subjects
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS
CHEMISTRY
GLASS
JOINING GLASS TO GLASS OR OTHER MATERIALS
METALLURGY
MINERAL OR SLAG WOOL
SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS
SURFACE TREATMENT OF GLASS
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Summary:PURPOSE:To improve weldability to core glass and chemical durability by incorporating SiO2, PbO, Al2O3, B2O3, Li2O, Na2O, and K2O. CONSTITUTION:A mixture is prepared by mixing 55-75% (by weight, the same applies to the following) SiO2, 3-15% PbO, 0-10% Al2O3, 0-10% B2O3, 0-15% Li2O, 0-20% Na2O, and 0-20% K2O so that the total content of Al2O3 and B2O2 and the total content of Li2O, Na2O, and K2O are regulated to 1-16% and 10-33%, respectively, and also mixing, it necessary, 0-5% MgO, 0-5% CaO, and 0-5% ZnO so that the total content of MgO, CaO, and ZnO is regulated to 1-10%, and then, the above mixture is subjected to heating and melting to undergo vitrification.
Bibliography:Application Number: JP19890148596