Abstract
As-Se-based chalcogenide glasses are IR transparent, and are an ideal braze for the ZnSe and ZnS. Interfacial reactions between As-Se and Zn were investigated using reaction couples As-50 at.% Se/Zn at 350°C, As-50 at.% Se/Zn at 370°C and As-60 at.% Se/Zn at 350°C. Cross-sections of reaction couples were analyzed by using optical microscopy and electron probe micro-analysis. Two phases were formed at the interface, and diffusion paths were glass/ZnSe/As 2 Zn 3 /Zn. Growth rates of the intermetallic layers were determined and at 350°C follow a parabolic law which indicates a diffusion-controlled mechanism. © 1997 Elsevier Science B.V.