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 …

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 …

2024年3月20日 · Herein, we have developed a new synthesis method by combining the microplasma gas electrode with molten salt electrochemistry. Uranyl ions (UO 22+) in molten …

2021年12月1日 · Structural analysis of uranium dioxide (UO 2)–molybdenum (Mo) composite fuel pellets prepared at a range of sintering temperatures from 1300 to 1800 °C was performed. …

《工程科学学报》 (Chinese Journal of Engineering)是由教育部主管、北京科技大学主办的学术类科技期刊，ISSN 2095-9389, CN 10-1297/TF，月刊，国内外公开发行，主要刊载工学领域的 …

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 …

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]。

Download scientific diagram | SEM images of the cross section of (a) UO 2 pellet before electrolysis and the surface metal layer of the products after electrolysis at 3.3 V for different...

2024年12月14日 · 纳米UO2的SEM如图2所示。U-300样品(图2a和2b)呈球状，平均直径约为300 nm；样品U-200(图2c和2d)呈现单分散的球状结构，平均直径约为200 nm；以三乙胺作为溶 …

2006年4月18日 · The behaviour of gases produced by fission is of great importance for nuclear fuel operation. Within this context, an experimental method for the characterisation of the …