Structure and Composition of Metal/Ceramic Interfaces

摘要

The structure and composition of metal/ceramic interfaces play an important role for the properties of composites, for the bonding of bulk metals (or metallic alloys) to bulk ceramics, in electronic packaging, and for the properties of oxide scales on metals (or metallic alloys) formed after high-temperature corrosion. In this paper the possibilities of high-resolution transmission electron microscopy (HRTEM) and analytical electron microscopy (AEM) will be summarized and recent developments discussed. Those advancements encompass quantification of HRTEM data by image processing and studies of specific components of the interfaces by investigations of the near-edge fine structures (ELNES) of energy loss spectra. The techniques will be applied to the Nb/Al_2O_3, and Cu/Al_2O_3 interfaces, respectively.