Mechanical and chemical properties of PVD and cold spray Cr-coatings on Zircaloy-4

RV Umretiya, B Elward, D Lee, M Anderson… - Journal of Nuclear …, 2020 - Elsevier
Accident-tolerant fuel (ATF) cladding materials aim to improve fuel reliability and safety
during accident scenarios in water-cooled reactors. These ATF cladding should also perform …

Enhanced flow boiling heat transfer on chromium coated zircaloy-4 using cold spray technique for accident tolerant fuel (ATF) materials

D Lee, B Elward, P Brooks, R Umretiya, J Rojas… - Applied Thermal …, 2021 - Elsevier
Flow boiling heat transfer tests were conducted to evaluate the Critical Heat Flux (CHF) and
Heat Transfer Coefficient (HTC) of conventional and accident tolerant fuel (ATF) cladding …

Effect of surface characteristics and environmental aging on wetting of Cr-coated Zircaloy-4 accident tolerant fuel cladding material

RV Umretiya, S Vargas, D Galeano… - Journal of Nuclear …, 2020 - Elsevier
With the goal of increasing the performance and safety of existing nuclear power plants, the
research and development of Accident Tolerant Fuels (ATFs) are of high priority within the …

Comparing the oxidation of FeCrAl alloys in isothermal and cyclic high-temperature steam environments

VU Okoro, K Daub, H Nordin, SY Persaud - Journal of Nuclear Materials, 2024 - Elsevier
This study investigates the oxidation behavior of FeCrAl (APMT and C26M) alloys in high-
temperature steam at 1000° C using isothermal and cyclic conditions. The FeCrAl alloys …

Evolution of microstructure and surface characteristics of FeCrAl alloys when subjected to flow boiling testing

RV Umretiya, D Lee, B Elward, M Anderson… - Journal of Nuclear …, 2021 - Elsevier
FeCrAl alloys are candidate materials for manufacturing accident-tolerant fuel (ATF)
cladding intended for light water reactors to increase fuel reliability and safety during design …

Fundamental study on microlayer dynamics in nucleate boiling

L Bures - 2021 - infoscience.epfl.ch
Dynamics of nucleate boiling are strongly affected by the formation and behaviour of the
microlayer, a layer of liquid underneath growing bubbles. As a result of its minute thickness …

Accident Tolerant Fuels Claddings and the Evolution of their Surface Characteristics under Critical Heat Flux

RV Umretiya - 2021 - scholarscompass.vcu.edu
Abstract Enhanced Accident Tolerant Fuels (ATFs) systems for light water reactors require
higher temperature oxidation resistance in steam environments than the current UO 2 …

[PDF][PDF] Rajnikant Umretiya*, Tao Liu*, Zeyun Wu, and Jessika Rojas

D Lee, TA Moreira, M Anderson, RB Rebak - researchgate.net
ABSTRACT Accident Tolerant Fuels (ATFs) are novel technologies designed to improve fuel
reliability and increase safety margins during design-basis and beyond-design-basis …