Glass

Devised is a glass which has high heat resistance and a low thermal expansion coefficient, and is excellent in productivity. A glass of the present invention includes as a glass composition, in terms of mol %, 55% to 80% of SiO2, 12% to 30% of Al2O3, 0% to 3% of B2O3, 0% to 1% of Li2O+Na2O+K2O, and...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	Saito, Atsuki
Format:	Patent
Sprache:	eng
Schlagworte:	ADVERTISING CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY CRYPTOGRAPHY DISPLAY DISPLAYING EDUCATION GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS LABELS OR NAME-PLATES METALLURGY MINERAL OR SLAG WOOL PHYSICS SEALS SIGNS SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS
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Beschreibung
Zusammenfassung:	Devised is a glass which has high heat resistance and a low thermal expansion coefficient, and is excellent in productivity. A glass of the present invention includes as a glass composition, in terms of mol %, 55% to 80% of SiO2, 12% to 30% of Al2O3, 0% to 3% of B2O3, 0% to 1% of Li2O+Na2O+K2O, and 5% to 35% of MgO+CaO+SrO+BaO, and has a thermal expansion coefficient within a temperature range of from 30° C. to 380° C. of less than 40×10−7/° C.