Modelle und Eigenschaften von Korn- und Phasengrenzen

Models about the structure of grain boundaries in pure metals, alloys and of phase boundaries between two crystals of different elements are known. Geometrical and energetical interpretations of these models are discussed. It is tried to establish the structure of grain boundaries by an energetical method. With the results of these theoretical works you can better interpret the experimental results from oriented bicrystals. But the direct investigation of the influence of grain boundaries in polycrystals will be also necessary in future.