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Institution

Atomic Energy of Canada Limited

CompanyOttawa, Ontario, Canada
About: Atomic Energy of Canada Limited is a company organization based out in Ottawa, Ontario, Canada. It is known for research contribution in the topics: Zirconium alloy & Neutron. The organization has 4845 authors who have published 4826 publications receiving 102951 citations.


Papers
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Journal ArticleDOI
TL;DR: The spins of states in I/sup 127/ populated by the K-capture decay of Xe/ sup 127/ were determined in this article, and the relative conversion line intensities of the I/Sup 127/ transitions and the gamma-gamma, conversion electron-γma, and gamma conversion electron angular correlations for the 172.1-202.8 kev cascade were measured.

30 citations

Journal ArticleDOI
TL;DR: In this paper, critical neutron scattering measurements as a function of concentration and temperature in a crystal of a magnet with a concentration gradient such that $c$ spans the percolation threshold was reported.
Abstract: We report critical-neutron-scattering measurements as a function of concentration and temperature in a crystal of ${\mathrm{Mn}}_{c}{\mathrm{Zn}}_{1\ensuremath{-}c}{\mathrm{F}}_{2}$ which has a concentration gradient such that $c$ spans the percolation threshold ${c}_{p}$. The results are consistent with a multicritical-point description of percolation in magnets and illustrate explicitly the importance of spinspace crossover effects on percolation. We observe no critical scattering associated with the three-dimensional phase transition for $cg~{c}_{p}$.

30 citations

Journal ArticleDOI
TL;DR: In this paper, the effect of heat treatments on delayed hydride cracking in Zr-2.5 wt pct Nb has been studied and it was found that fast cooling rates, which produce very finely dispersed hydrides, result in higher crack growth rates and a stronger dependence of the crack velocity on the applied-stress intensity factor.
Abstract: The effect of heat treatments on delayed hydride cracking (DHC) in Zr-2.5 wt pct Nb has been studied. Crack velocities were measured in hydrided specimens, which were cooled from solution-treatment temperatures at different rates by water-quenching, oil-quenching, liquid-nitrogen quenching, and furnace cooling. The resulting hydride size, morphology, and distributions were examined by optical metallography. It was found that fast cooling rates, which produce very finely dispersed hydrides, result in higher crack growth rates and a stronger dependence of the crack velocity on the applied-stress intensity factor. Also, the incubation period before cracking commences was found to be relatively short for specimens with fine hydrides, whereas specimens with coarse hydrides required considerably longer incubation periods. These results can be explained by rapid growth of preexisting hydrides within the crack-tip plastic zone. In addition, different solution temperatures were used to investigate the effect of the continuity of the grain-boundary phase(β-phase) on the crack velocity. Transmission electron microscopy was used to examine the structure of this grain-boundary phase. It was found that for heat treatments, which destroyed theβ-phase continuity, the crack velocity was significantly reduced, as would be expected from the theory of enhanced diffusion through grain boundaries.

30 citations

Journal ArticleDOI
TL;DR: In this paper, the volume changes in irradiated U3Si are shown to be strongly temperature-dependent, and the volume change, "V/V", increases from about 5% at 315 °C to a maximum of about 30% at 500 °C.

30 citations

Journal ArticleDOI
TL;DR: In this article, the average values of the Knight shifts were obtained directly by a comparison of precession frequencies and indirectly from relaxation times involving the Korringa relation, and good agreement was found among the results from different methods; the average value of K(FrT1)=(0.89±0.09)% and K(RaPb)=(1.05± 0.15%)%.
Abstract: The Knight shiftsK(FrT1) andK(RaPb) have been measured in connection with a systematic study on magnetic moments of (h9/2) n proton states. The Knight shifts were obtained directly by a comparison of precession frequencies and, indirectly, from relaxation times involving the Korringa relation. Good agreement is found among the results from the different methods; the average values areK(FrT1)=(0.89±0.09)% andK(RaPb)=(1.05±0.15)%.

30 citations


Authors

Showing all 4845 results

NameH-indexPapersCitations
Henry P. Schwarcz7835120863
Jonathan N. Glickman7217224025
Andrej Atrens6941721741
See Leang Chin6746017181
Purnendu K. Dasgupta6250616779
John Katsaras552209263
Jing-Li Luo5543610963
Charles Gale5333110903
Sanjoy Banerjee522298880
Yoshio Takahashi504039801
Peter Sigmund4922011795
Michael P. Païdoussis461658825
Wei-Kan Chu464458616
A. G. W. Cameron4512310111
Erland M. Schulson442456966
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
20221
20213
20205
20194
20185
20178