HIGH-TEMPERATURE RESISTANT GLASS FOR LAMP BULB AND ITS USE

PROBLEM TO BE SOLVED: To provide an alkaline earth metal-containing aluminosilicate glass having various characteristics required for a material used for a lamp bulb having a molybdenum part and a bulb temperature higher than 650°C. SOLUTION: The aluminosilicate glass has the following formulation r...

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Bibliographic Details
Main Authors OTT FRANZ DR, FECHNER JOERG HINRICH
Format Patent
LanguageEnglish
Published 20.04.2006
Subjects
BASIC ELECTRIC ELEMENTS
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS
CHEMISTRY
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRIC INCANDESCENT LAMPS
ELECTRICITY
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:PROBLEM TO BE SOLVED: To provide an alkaline earth metal-containing aluminosilicate glass having various characteristics required for a material used for a lamp bulb having a molybdenum part and a bulb temperature higher than 650°C. SOLUTION: The aluminosilicate glass has the following formulation represented by mass% based on oxides: >58-62% SiO2, 15-17.5% Al2O3, 0.1-<1% MgO, 5.5-14% CaO, 0-8% SrO, 6-17% BaO, 0-1% ZrO2, 0-0.3% CeO2, 0-5% TiO2, 0-2% MoO3and 0-4% Bi2O3, wherein ΣRO (alkaline earth metal oxide) is 11.6-29%. COPYRIGHT: (C)2006,JPO&NCIPI
Bibliography:Application Number: JP20050277937