Ceramic-metal interactions are on the basis of a variety of technologies covering the fields of materials production as in ceramic-metal composites and the techniques of joining ceramic to metal. The physics and chemistry of interactions at ceramic-metal interfaces are still the subject of intensive studies not only from a scientific point of view but also for technological reasons because the emergence of new ceramic materials calls for insight into the interactions of these materials with metals. In this paper the mechanisms of ceramic-metal interactions are reviewed against the background of the technology and some extensions of existing interaction models are given.