Abstract
The structures and properties of nanometer scale Dy, Cr and Ni are investigated. Using X-ray diffraction, the magnetically regulated thermal expansion of compacted nanocrystalline Dy was observed to be very different from the bulk. Neutron diffraction measurements of compacted nanocrystalline Cr samples indicate that the antiferromagnetic structure of the material differs from coarse-grained Cr. In an effort to determine whether the sources of these differences are due to any unique magnetic properties of grain boundaries, an experiment was designed to measure the magnetization of a single large area twist grain boundary in an Ni bicrystal. Results from this experiment are reported.
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