Environmental Engineering Reference
In-Depth Information
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DHC mechanism (degradation of failed fuel, outside-in cracking and
dry storage).
Role and kinetics of Fe, Cr, Ni from dissolving SPPs in Zircaloy and
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Zr-Nb alloys for corrosion, mechanical properties and dimensional
stability.
Dimensional stability
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Effect of hydrogen on irradiation growth mechanisms.
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PWR fuel assembly bowing mechanism.
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BWR fuel channel bowing mechanism and parameters affecting
them such as: texture, residual stress, fl ux gradient and hydrogen
gradient.
Mechanism of loop formation in zirconium alloys.
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Mechanisms of both irradiation and post-irradiation creep.
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The effects of texture and hydrogen pickup of Zr-Nb alloys as related
Role of Nb in decreasing irradiation growth.
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to growth of PWR guide tubes.
Effects of thermal and radiation induced relaxation of Zr- and Ni-
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alloys, particularly relative to spacer grids.
PCI and PCMI
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PCMI failure mechanism during out-side in cracking, and possible
relevance to failure mechanism for high burnup fuel?
PCI failure mechanisms due to Missing Pellet Surfaces (MPS).
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PCI mechanism and performance of liner/barrier and pellets with
additives at high burnup.
LOCA
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Verifi cation of coolant blockage with real fuel rods in lattice design,
related to maintenance of coolable geometry.
Mechanism of runaway oxidation in Russian E110 alloys.
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Conditions when alpha-Zr layers are formed due to fuel clad
bonding.
RIA
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Effects of hydride orientation, hydrogen distribution and hydrogen
content on PCMI fuel clad failure mechanism.
Severe accidents
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Performance and phenomena when coolable geometry cannot be
sustained.
Intermediate dry storage
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Effects of the projected longer dry storage times before fi nal disposal
on hydride re-orientation and its consequences during a cask drop
accident
Effects of hydride orientation, hydrogen distribution and hydrogen con-
tent as well as temperature during a cask drop accident
Effects of irradiation on hydrogen solubility of various Zr alloys.
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