No abstract

No abstract

No abstract

Energy Coupled to Matter concepts such as magnetic field-assisted processing were used to align rare earth-doped alumina ceramics in the presence of applied fields. The addition of gadolinium and ytterbium dopants to alumina increased the magnetic susceptibility anisotropies, and induced magnetic torques that led to significant alignment of ceramic particles under the application of magnetic fields as low as 1.8 Tesla. In comparsion, undoped alumina materials showed minimal alignment under applied field strengths as high as 9 Tesla. Density function theory modeling indicated that the specific dopant typed dictated changes in the magnetic properties of different rare earth-doped alumina systems by directly affecting the magnetic moment localization and magnetocrystalline anisotropy.

Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing the burden, to Department of Defense, Washington Headquarters Services, Directorate for Information Operations and Reports (0704-0188),