MEDIUM EXPANSION LEADED COPPER BOROALUMINOSILICATE GLASSES

• Main Authors: YOUNG, DIANA, M, HARES, GEORGE, B
• Format: Patent
• Language: English; French
• Published: 23.07.2009
• 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

The present invention is directed at a leaded copper boroaluminosilicate glass, (20, 22) having coefficients of thermal expansion (CTEs) of between 25 - 55 x 10-7 / °C (over a range of 25-300 °C) and a softening point in the range of 550-725 °C, being suitable for use as a sealing glass, especially...