2022年1月19日 · Dense nano-sized UO2+x pellets are synthesized by spark plasma sintering with controlled stoichiometries (UO2.03 and UO2.11) and grain sizes (∼100 nm), and subsequently …

We use in situ liquid cell and microanalysis in scanning electron microscopy (SEM) to study UO 2 chemistry following recent successes [2, 3]. We invented a vacuum compatible microfluidic …

2024年7月16日 · In this study, the crack behavior of UO 2 pellets with controlled grain structure and Cr 2 O 3 doping was tested with rapid power ramping (300−900 °C per min) mimicking a …

2021年8月26日 · ABSTRACT: When in contact with oxidizing media, UO2 pellets used as nuclear fuel may transform into U4O9, U3O7, and U3O8. The latter starts forming by stress-induced …

Studying the UO2 Electrochemistry In Situ Using SEM - Volume 26 Issue S2 19th August 2024: digital purchasing is currently unavailable on Cambridge Core. Due to recent technical …

fmdm 模型需要考虑溶解氧、过氧化氢和氢气与 uo2 的相互作用的实验验证。 使用扫描电子显微镜 (SEM) 进行的原位液体细胞分析和微量分析最近已被证明是研究 UO2 颗粒氧化的可行方法 [2]。

2020年7月30日 · This paper describes the method and key steps in integrating the vacuum compatible SAVLI to SEM and obtaining secondary electron (SE) images of particles in liquid …

At the end of the fuel’s useful life in a reactor, about 96% of the SNF is still UO2. Thus, the behaviour of UO2 in SNF must be understood and evaluated under the weathering conditions …

Grain Boundary Corrosion and Alteration Phase Formation During the Oxidative Dissolution of UO2 Pellets

2024年7月11日 · We present a unique mode of growth that can engineer the grain size of high temperature ceramics, such as UO 2, without requiring the extremely high temperatures …