白俄罗斯国立大学Uglov.Vladimir.Vasilievich教授将于2025年8月14日举行等离子体与材料相互作用研究学术讲座，欢迎感兴趣的老师和同学参加。讲座内容和时间地点安排如下：

讲座：High-Energy Beam and Plasma Acceleration Systems and Technologies

讲座时间：2025年8月14日，星期四，15:00

讲座地点：科学园C2栋413会议室

摘要： High-energy beam and plasma acceleration systems represent pivotal technologies in advancing materials science, nuclear engineering, and surface modification applications. This report overviews recent developments in plasma acceleration mechanisms, including the generation of compressed plasma flows via magnetoplasma accelerators and dense plasma focus devices, such as the PF-6 system. Emphasis is placed on their utilization for ion radiation and plasma stream production, enabling enhanced material processing in fields like biology, medicine, and engineering. Key investigations into high-energy particle beams, employing ions such as He²⁺, Kr¹⁴⁺, Xe²²⁺, and Ni¹²⁺, simulate radiation damage in advanced materials, including high-entropy alloys (e.g., CoCrFeNi, HfNbTiZr), ceramics (ZrO₂, BeO, SiC), and multilayer coatings (ZrN/SiNx, TiN/SiNx). These studies elucidate defect formation mechanisms, radiation swelling, phase stability, and mechanical property alterations under irradiation, providing insights for optimizing nuclear reactor materials. Furthermore, the interaction of plasma flows and high-energy beams with material surfaces is explored, focusing on plasma liquid-phase alloying for doping elements like titanium, zirconium, and niobium into tungsten alloys and steels, thereby improving wear resistance, hardness, and radiation tolerance. Experimental and simulation results from ion beam irradiation and plasma channel dynamics underscore the potential for scalable technologies in aerospace, nuclear energy, and nanotechnology, drawing from over two decades of interdisciplinary research at Belarusian State University.

专家简介：

Vladimir Vasilievich Uglov教授是国际知名的材料科学和等离子体物理专家，是白俄罗斯国立大学（Belarusian State University，BSU）物理学院固体物理与纳米技术系主任，并兼任BSU核问题研究所（Institute of Nuclear Problems）首席研究员。他拥有物理与数学博士学位（Doctor of Science），长期聚焦等离子体技术在材料改性的研究，具有广泛的国际影响力。截至2025年，他已发表学术论文超过877篇，引用次数达5471次，h指数为31。

Uglov教授是等离子体加速领域的领先专家之一。他专注于压缩等离子体流（compression plasma flows）的生成和应用，这些流通常通过磁等离子体加速器（magnetoplasma accelerators）或稠密等离子体焦点装置（dense plasma focus devices）产生，用于材料表面改性。例如，他的研究包括利用等离子体加速器产生的离子化气体流来处理钨合金和钢材，实现表面合金化，提高材料的耐磨性和硬度。在高能量粒子束方面，Uglov的贡献主要体现在高能量离子束对材料的辐照效应研究。他使用高能量粒子束（如He²⁺、Kr¹⁴⁺、Xe²²⁺和Ni¹²⁺离子）模拟核反应堆环境下的辐射损伤，分析高熵合金（high-entropy alloys，如CoCrFeNi、HfNbTiZr）、陶瓷（ZrO₂BeO、SiC）和多层涂层（ZrN/SiNx、TiN/SiNₓ）的结构变化、辐射肿胀（radiation swelling）和相稳定性。这些研究揭示了高能量粒子束引起的缺陷形成机制（如气泡和空位簇），并为核材料的设计提供了优化方案。