铪的微结构特征、原子尺度特征及生长机制
Microstructural characteristics, atomic-scale features, and growth mechanisms of deuterides (hydrides) in hafnium
AI总结：
研究通过多种显微技术分析铪合金中氢化物-基体界面的结构和化学特性，揭示了界面演化机制，为核应用中的氢化物-金属系统设计提供新见解。
摘要：
铪氢化物是一种有前景的下一代核反应堆材料，尤其适用于快中子裂变控制棒和聚变系统屏蔽。该材料的内在脆性促使其以氢化物-金属复合材料形式使用，其功能和机械性能受氢化物-基体界面多尺度结构强烈影响。本研究利用扫描电子显微镜结合电子背散射衍射、透射电子显微镜结合电子能量损失谱以及原子探针层析成像技术，研究氢化物-基体界面的结构和化学特性，提取关键信息包括氢化物-基体晶体学取向关系、微观结构特征、失配诱导的位错分布、电子能量损失特性以及氢化物生长过程中氧的偏析。这些发现有助于阐明界面演化机制，可能为氢化物-金属系统的加工、性能和设计提供更深入的理解，具有核应用的潜在相关性。
英文摘要：
Hafnium hydride is a promising material for next-generation nuclear reactors, particularly as control rods for fast fission and shielding in fusion systems. The material's intrinsic brittleness encourages its use in the form of hydride-metal composites, where the functional and mechanical performance is strongly influenced by the multiscale structure of hydride-matrix interfaces. In this study, we employ a suite of microscopy techniques, including scanning electron microscopy with electron backscatter diffraction, transmission electron microscopy with electron energy-loss spectroscopy, and atom probe tomography, to investigate the deuteride-matrix interfaces in a deuterium-charged Hf alloy. We characterise their structure and chemistry, extracting key information including the deuteride-matrix crystallographic orientation relationship, microstructural features, misfit-induced dislocation distributions, electron energy-loss characteristics, and the segregation of oxygen during deuteride growth. These findings help clarify the mechanisms of interface evolution and may contribute to improved understanding of hydride-metal systems, with potential relevance for their processing, performance, and design in nuclear applications.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
