MAGNETIC COUPLING HYSTERESIS EFFECT OF DIFFUSION OF FAULTS IN IRON AND NICKEL IRRADIATED WITH NEUTRONS (in French)
Magnetic coupling hysteresis effect was used to study the faults created by neutron irradiation in iron and nickel. Rings of the metals were irradiated at 20 to 30 deg C and at 78 deg C in the Melusine Reactor. No coupling hysteresis band was detected in Ni at either of the irradiation temperatures. In iron, a very sharp hysteresis band appeared after irradiation at 20 to 30 deg C. The energy of activation of the faults was found to be 1.2 plus or minus 0.1 ev. In irradiation at 78 deg C a very sharp band followed by a weaker band was detected. The activation energies were 0.3 plus or minus 0.05 and 0.6 ev, respectively. After an anneal of 31 hr at 104 deg K. the 0.3 band was displaced toward higher temperatures. The same result was observed for the 1.2-ev band. The interpretation of these experimental results was difficult. (J.S.R.)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-15-024065
- OSTI ID:
- 4030611
- Journal Information:
- Journal de Physique et le Radium (France) Changed to J. Phys. (Orsay, Fr.), Journal Name: Journal de Physique et le Radium (France) Changed to J. Phys. (Orsay, Fr.) Vol. Vol: 22; ISSN JPAAA
- Country of Publication:
- Country unknown/Code not available
- Language:
- French
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Related Subjects
ANNEALING
BERYLLIUM OXIDES
BUBBLES
CRYSTALS
DEFECTS
DISTRIBUTION
EBOR
ENERGY LEVELS
EXPANSION
FAILURES
GRAIN SIZE
HELIUM
HIGH TEMPERATURE
HYSTERESIS
ION BEAMS
IRON
IRRADIATION
LATTICES
MAGNETISM
MEASURED VALUES
METALS, CERAMICS, AND OTHER MATERIALS
MINERALS
MONOCRYSTALS
NEUTRON BEAMS
NICKEL
QUANTITY RATIO
RADIATION DOSES
RADIATION EFFECTS
REACTORS
SAPPHIRE
SURFACES
TEMPERATURE
VARIATIONS
VOLUME