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Method of and apparatus for thermomagnetically processing a workpiece

United States Patent

August 5, 2014
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
A method of thermomagnetically processing a material includes disposing a workpiece within a bore of a magnet; exposing the workpiece to a magnetic field of at least about 1 Tesla generated by the magnet; and, while exposing the workpiece to the magnetic field, applying heat energy to the workpiece at a plurality of frequencies to achieve spatially-controlled heating of the workpiece. An apparatus for thermomagnetically processing a material comprises: a high field strength magnet having a bore extending therethrough for insertion of a workpiece therein; and an energy source disposed adjacent to an entrance to the bore. The energy source is an emitter of variable frequency heat energy, and the bore comprises a waveguide for propagation of the variable frequency heat energy from the energy source to the workpiece.
Kisner; Roger A. (Knoxville, TN), Rios; Orlando (Knoxville, TN), Wilgen; John B. (Oak Ridge, TN), Ludtka; Gerard M. (Oak Ridge, TN), Ludtka; Gail M. (Oak Ridge, TN)
UT-Battelle, LLC (Oak Ridge, TN)
14/ 186,385
February 21, 2014
FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT The invention described in this disclosure arose in the performance of Prime Contract Number DE-AC05-000R22725 between UT-Battelle, LLC and the Department of Energy. The government has certain rights in this invention.