Reactions at ceramic-metal interfaces in capacitor-discharge joined ceramics

Abstract

A capacitor-discharge joining technique has been used to fabricate zirconia-AlxNiyYz zirconia (ZrO2) joints, in addition, the surface of the ZrO2 tiles were sputter coated with Ti and joined using Al as an interlayer material. An investigation of the interfacial structure of the joints using transmission electron microscopes (TEM) revealed that there is a distinct reaction layer containing small particles between the ceramic substrate grains and the foils used as interlayers.