Adhesion of GexSe100-x glasses to silica glass

The adhesive strength of chalcogenide Ge_xSe_100-x (15 ≤ x ≤ 26) glasses to silica glass is studied by the method of normal detachment depending on germanium content, temperature of contact formation and detachment temperature. The value of adhesive strength increases exponentially as the detachment temperature increases passing through the maximum near the glass transition temperature of adhesive. The increase in the temperature of contact formation between chalcogenide and silica glasses in the range of 260-370 °C leads to linear increase in adhesion strength. The Ge₂₀Se₈₀ glass is established to show the maximum adhesion (2.6 ± 0.3 MPa) to silica glass among the studied compositions at the temperature of formation of adhesion contact above 320 °C.