Development and performance of aluminum nitride insulating coatings for application in a lithium environment
Development and performance of aluminum nitride insulating coatings for application in a lithium environment
复制标题
锂环境用氮化铝绝缘涂料的开发及性能
DOI：
10.1016/s0022-3115(98)00370-5
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发表时间：
1998
影响因子：
3.1
通讯作者：
R. Haglund
中科院分区：
文献类型：
--
作者：
K. Natesan;C. Reed;D. Rink;R. Haglund
包层系统是聚变反应堆中最重要的部件之一，因为它对聚变能的经济性和安全性都有重大影响。基于冷却管内壁上的电绝缘涂层必须最小化在磁场中的液体金属流动期间发生的磁流体动力学压降的要求，氮化铝（AlN）被认为是锂自冷却毯概念的候选涂层材料。详细研究了AlN作为涂层材料的制备、金相组织、与液态Li的相容性以及电学特性。在静态系统中进行锂相容性研究，通过暴露AlN涂层试样几个时间段，在不同的温度下，并在各种锂化学。在暴露于液体Li之前和之后，在室温下测量样品的电阻。本文讨论了正在进行的活动的AlN涂层的发展的结果。
The blanket system is one of the most important components in a fusion reactor because it has a major impact on both the economics and safety of fusion energy. Based on the requirement that an electrically insulating coating on the inner wall of cooling tubing must minimize the magnetohydrodynamic pressure drop that occurs during the flow of liquid metal in a magnetic field, aluminum nitride (AlN) is considered a candidate coating material for the lithium self-cooled blanket concept. Detailed investigations were conducted on the fabrication, metallurgical microstructure, compatibility with liquid Li, and electrical characteristics of AlN as a coating material. Lithium compatibility studies were conducted in static systems by exposure of AlN-coated specimens for several time periods, at various temperatures, and in various lithium chemistries. Electrical resistance of the specimens was measured at room temperature before and after exposure to liquid Li. The paper discusses the results from ongoing activities on the development of AlN coatings.