METHOD FOR SEALING GLASS, METAL OR CERAMICS WITH MIXTURE OF PbO GLASS AND {62 -EUCRYPTITE CONTAINING GLASS

A sealing glass comprising a primary composition suitable as a solder, having a rapid rate of crystallization at a low temperature, a high melting point and a high coefficient of expansion, and a secondary glass composition having an extremely low coefficient of expansion crystallizing at a high tem...

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Bibliographische Detailangaben
Hauptverfasser:	FUJII H,JA, KAWAMURA S,JA, TAKAGI K,JA
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE BASIC ELECTRIC ELEMENTS CEMENTS CERAMICS CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS LIME, MAGNESIA METALLURGY MINERAL OR SLAG WOOL REFRACTORIES SEMICONDUCTOR DEVICES SLAG SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	A sealing glass comprising a primary composition suitable as a solder, having a rapid rate of crystallization at a low temperature, a high melting point and a high coefficient of expansion, and a secondary glass composition having an extremely low coefficient of expansion crystallizing at a high temperature. The two compositions are mixed in predetermined ratio and placed under sealing heat conditions where they are caused to react to produce a third composition having a crystal which is higher in melting point and sealing resistance to reheating but which is lower in coefficient of expansion.