INMdok (Leibniz Institute for New Materials)
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Nanocrystalline materials
In materials science and solid state physics progress has been made in many cases by one of the following two approaches. Either by developing and applying new methods of investigation or by preparing materials with novel structural features and/or properties. Transmission electron microscopy, M6ssbauer spectroscopy, and tunneling microscopy are examples for the first approach. The discovery of metallic glasses, high temperature superconductors or quasi-crystals represent developments resulting in materials with ovel structural features and/or properties. In the case of nanocrystalline materials, the generation of solids with new atomic structures and properties was attempted by utilizing the atomic arrangements in the cores of defects such as grain boundaries, interphase boundaries or dislocations