Nondestructive hydrogen analysis of steam-oxidized Zircaloy-4 by wide-angle neutron scattering

Yan, Yong; Qian, Shuo; Garrison, Ben; Smith, Tyler; Kim, Peter

doi:10.1016/j.jnucmat.2018.02.016

Cited by 3 publications

(1 citation statement)

References 17 publications

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“…This monoclinic ZrO 2 crystal structure was also confirmed by the Raman profiles ( Figure 4 b) [ 45 , 47 ]. Zirconium is known to absorb hydrogen while being oxidized to ZrO 2 by the corrosion reaction with the primary water during reactor operation [ 21 , 26 , 48 ]. Therefore, the ZrO 2 observed in all the pellets arose from the reaction of zirconium with water under PWR conditions.…”

Section: Resultsmentioning

confidence: 99%

Decreasing Hydrogen Content within Zirconium Using Au and Pd Nanoparticles as Sacrificial Agents under Pressurized Water at High Temperature

Lee,

Ha,

Choi

et al. 2023

Materials

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Decreasing hydride-induced embrittlement of zirconium-based cladding is a significant challenge for the successful dry storage of spent nuclear fuel. Herein, to radically minimize hydride-induced embrittlement, we used nanoparticles as sacrificial agents with a greater affinity than zirconium for hydrogen. Corrosion experiments in the presence of gold (Au) and palladium (Pd) nanoparticles under simulated pressurized water reactor (PWR) conditions revealed that the hydrogen content of the zirconium samples was remarkably reduced, with a maximum decrease efficiency of 53.9% using 65 nm Au and 53.8% using 50 nm Pd nanoparticles. This approach provides an effective strategy for preventing hydride-induced embrittlement of zirconium-based cladding.

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