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Title: Method of and apparatus for thermomagnetically processing a workpiece

Patent ·
OSTI ID:1150015
; ; ; ;

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.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-000R22725
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
Patent Number(s):
8,795,444
Application Number:
14/186,385
OSTI ID:
1150015
Resource Relation:
Patent File Date: 2014 Feb 21
Country of Publication:
United States
Language:
English

References (17)

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Thermal and high magnetic field treatment of materials and associated apparatus patent January 2007
Induction heating apparatus capable of stably operating at least one switching element contained therein patent June 2009
Thermal and high magnetic field treatment of materials and associated apparatus patent June 2010
Electromagnetic forming of metallic glasses using a capacitive discharge and magnetic field patent August 2013
Method for Treating Hydrocarbon Fluids Using Pulsating Electromagnetic Wave in Combination with Induction Heating patent-application October 2011
Apparatus and Method for Magnetically Processing a Specimen patent-application December 2012
Injection Molding of Metallic Glass by Rapid Capacitor DIscharge patent-application January 2013
Using magnetic field gradients to control the directional solidification of alloys and the growth of single crystals journal September 2004
In situ evidence of enhanced transformation kinetics in a medium carbon steel due to a high magnetic field journal July 2004
The effect of high magnetic field on phase stability in Fe-Ni journal June 2004

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