GLASS FOR GLASS CERAMIC CEMENT

FIELD: glass industry. ^ SUBSTANCE: invention relates to glass used for glass ceramic cement that is designated for soldering and hermetic sealing in instrument making industry, electronic technique and radioelectronics, in particular, in manufacturing sensitive members in quartz resonators. Glass c...

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Bibliographische Detailangaben
Hauptverfasser:	RACHKOVSKAJA GALINA EVTIKHIEVNA, POLJAKOV A.V, ZAKHAREVICH GALINA BORISOVNA, SEMENKOVA O.S, POLJAKOV V.B
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	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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Beschreibung
Zusammenfassung:	FIELD: glass industry. ^ SUBSTANCE: invention relates to glass used for glass ceramic cement that is designated for soldering and hermetic sealing in instrument making industry, electronic technique and radioelectronics, in particular, in manufacturing sensitive members in quartz resonators. Glass comprises components taken in the following ratio, wt.-%: PbO, 9.0-35.6; ZnO, 3.2-10.0; B2O3, 4.2-4.6; Bi2O3, 55.8-75.5; SiO2, 1.2-1.3. Glass ceramic cement temperature coefficient of linear expansion is (130 5) x 10-7K-1, crystallization and soldering point is 470-490oC, deformation point is 650oC, shifting strength is 45 MPa. Invention provides enhancing adhesion strength and expanding range of resonator working temperature values. ^ EFFECT: improved and valuable properties of glass. ^ 1 tbl