Method of and apparatus for thermomagnetically processing a workpiece
Abstract
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.
- Inventors:
- Issue Date:
- Research Org.:
- ORNL (Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States))
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1150015
- Patent Number(s):
- 8,795,444
- Application Number:
- 14/186,385
- Assignee:
- UT-Battelle, LLC (Oak Ridge, TN)
- DOE Contract Number:
- AC05-000R22725
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2014 Feb 21
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Kisner, Roger A., Rios, Orlando, Wilgen, John B., Ludtka, Gerard M., and Ludtka, Gail M. Method of and apparatus for thermomagnetically processing a workpiece. United States: N. p., 2014.
Web.
Kisner, Roger A., Rios, Orlando, Wilgen, John B., Ludtka, Gerard M., & Ludtka, Gail M. Method of and apparatus for thermomagnetically processing a workpiece. United States.
Kisner, Roger A., Rios, Orlando, Wilgen, John B., Ludtka, Gerard M., and Ludtka, Gail M. Tue .
"Method of and apparatus for thermomagnetically processing a workpiece". United States. https://www.osti.gov/servlets/purl/1150015.
@article{osti_1150015,
title = {Method of and apparatus for thermomagnetically processing a workpiece},
author = {Kisner, Roger A. and Rios, Orlando and Wilgen, John B. and Ludtka, Gerard M. and Ludtka, Gail M.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {8}
}
Works referenced in this record:
Thermal and high magnetic field treatment of materials and associated apparatus
patent, January 2007
- Kisner, Roger; Wilgen, John; Ludtka, Gerard
- US Patent Document 7,161,124
Thermal and high magnetic field treatment of materials and associated apparatus
patent, June 2010
- Kisner, Roger A.; Wilgen, John B.; Ludtka, Gerard M.
- US Patent Document 7,745,765
Using magnetic field gradients to control the directional solidification of alloys and the growth of single crystals
journal, September 2004
- Ganapathysubramanian, Baskar; Zabaras, Nicholas
- Journal of Crystal Growth, Vol. 270, Issue 1-2, p. 255-272
In situ evidence of enhanced transformation kinetics in a medium carbon steel due to a high magnetic field
journal, July 2004
- Ludtka, G. M.; Jaramillo, R. A.; Kisner, R. A.
- Scripta Materialia, Vol. 51, Issue 2, p. 171-174
The effect of high magnetic field on phase stability in Fe-Ni
journal, June 2004
- Nicholson, D. M. C.; Kisner, R. A.; Ludtka, G. M.
- Journal of Applied Physics, Vol. 95, Issue 11, p. 6580-6582