Method of increasing magnetostrictive response of rare earth-iron alloy rods
Patent
·
OSTI ID:7268702
This invention comprises a method of increasing the magnetostrictive response of rare earth-iron (RFe) magnetostrictive alloy rods by a thermal-magnetic treatment. The rod is heated to a temperature above its Curie temperature, viz. from 400 to 600 C; and, while the rod is at that temperature, a magnetic field is directionally applied and maintained while the rod is cooled, at least below its Curie temperature. 2 figs.
- DOE Contract Number:
- W-7405-ENG-82
- Assignee:
- Iowa State Univ. Research Foundation, Inc., Ames, IA (United States)
- Patent Number(s):
- US 4818304; A
- Application Number:
- PPN: US 7-110974
- OSTI ID:
- 7268702
- Resource Relation:
- Patent File Date: 20 Oct 1987
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
IRON ALLOYS
MAGNETOSTRICTION
THERMOMECHANICAL TREATMENTS
RARE EARTH ALLOYS
TEMPERATURE RANGE 0400-1000 K
ALLOYS
FABRICATION
HEAT TREATMENTS
MAGNETIC PROPERTIES
MATERIALS WORKING
PHYSICAL PROPERTIES
TEMPERATURE RANGE
360104* - Metals & Alloys- Physical Properties
360101 - Metals & Alloys- Preparation & Fabrication
IRON ALLOYS
MAGNETOSTRICTION
THERMOMECHANICAL TREATMENTS
RARE EARTH ALLOYS
TEMPERATURE RANGE 0400-1000 K
ALLOYS
FABRICATION
HEAT TREATMENTS
MAGNETIC PROPERTIES
MATERIALS WORKING
PHYSICAL PROPERTIES
TEMPERATURE RANGE
360104* - Metals & Alloys- Physical Properties
360101 - Metals & Alloys- Preparation & Fabrication