Journal ArticleDOI
ELECTRICAL RESISTIVITY INCREASE RATES IN Fe--C AND Fe--N SOLID SOLUTIONS DURING NEUTRON IRRADIATION AT 4.5 K.
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A series of α-iron specimens containing carbon and nitrogen in interstitial solid solution were irradiated simultaneously at 4.5 K with fast neutrons to a fluence of 4.7 × 1017 n/cm2 with E > 0.1 MeV as mentioned in this paper.Abstract:
A series of α-iron specimens containing carbon and nitrogen in interstitial solid solution were irradiated simultaneously at 4.5 K with fast neutrons to a fluence of 4.7 × 1017 n/cm2 with E > 0.1 MeV. In situ electrical resistivity measurements during irradiation showed that the apparent damage rates were dependent on the C or N concentration. In particular, the value of the initial resistivity increment per unit flux (S), passed through a minimum value at 0.1 at. per cent N and became larger than the value for pure iron above 0.14 at. per cent N. The results can be explained qualitatively as interstitial impurity-induced differences in production rates and dispersion of defects or semi-quantitatively as defect-induced deviations from Matthiessen's rule.read more
Citations
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Journal ArticleDOI
Neutron-irradiation hardening in irons and ferritic steels
TL;DR: In this article, the effects of the principal metallurgical (grain size, initial strength, purity) and irradiation (neutron dose, dose rate, spectrum, irradiation temperature) variables on the magnitude of the hardening are described and discussed in terms of these basic processes.
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Defect production in purified and nitrogen doped niobium during low temperature neutron irradiation
D. Keil,W. Decker,J. Diehl +2 more
TL;DR: In this paper, the authors showed that the defect cascades are loosely packed and that a relatively large fraction of the self-interstitials are produced by means of long range focusing collision sequences.
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The role of depleted zones in neutron irradiated metals
Osman T. Inal,Lawrence E Murr +1 more
References
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Journal ArticleDOI
Two-Current Conduction in Nickel
Albert Fert,I. A. Campbell +1 more
TL;DR: In this article, the low-temperature electrical resistivity of dilute nickel-based alloys was measured and it was shown that spin-ensuremath{\uparrow} and spin-ensemblemath{\downarrow} electrons carry current in parallel, providing important implications for the interpretation of transport properties of pure and alloy ferromagnets.
Journal ArticleDOI
Kinetics of carbon precipitation in irradiated iron—II electrical resistivity measurements
F.E Fujita,A.C Damas +1 more
TL;DR: In this article, the electrical resistivity changes which occur upon annealing quenched iron-carbon (0.011 wt.%) after irradiation at low temperatures in a reactor are compared to the changes that occur in unirradiated specimens.
Journal ArticleDOI
Evidence for two current conduction iron
TL;DR: In this article, the authors show that resistivities of dilute iron based alloys show strong deviations from the Matthiessen's rule, and that these deviations can be explained by a model in which spin ↑ and spin ↓ electrons conduct in parallel.
Posted Content
Evidence for Two Current Conduction in Iron
TL;DR: In this paper, the authors provided the first experimental demonstration of two current conduction at low temperatures in a ferromagnetic metal, which is consistent with the theory of impurity shielding in these alloys.
Journal ArticleDOI
Kinetics of carbon precipitation in irradiated iron—III. Calorimetry
R.A Arndt,A.C Damask +1 more
TL;DR: The binding energy of carbon to these defect traps was measured by calorimetry and found to be 0.41 eV/atom as mentioned in this paper, which explains why this carbide is not formed in irradiated alloys.