摘要
在高温气冷堆中,球形燃料元件基体石墨的摩擦性能对于燃料循环系统的球流设计和反应堆运行安全具有十分重要的意义,已成为核材料学科的重要研究领域之一。文章介绍了迄今为止国内外石墨摩擦性能的研究进展,对石墨摩擦性能的主要影响因素如外在因素中的环境气氛和温度等进行总结,并对载荷、滑动距离和速度等影响因素进行了阐述。石墨摩擦性能的相关研究结果,可为未来开展高温气冷堆用球形燃料元件基体石墨摩擦性能的研究提供借鉴和参考。通过对比结构石墨IG-11和球形燃料元件A3-3基体石墨在空气中的摩擦行为,进一步说明了针对基体石墨摩擦行为开展研究的必要性。
In high temperature gas-cooled reactors （HTGR）, the frictional properties of matrix graphite with pebble fuel elements play an important role in the design of pebble flow dynamics in nuclear fuel circulating system and operational safety for nuclear reactors, which is one of the most interested research issues in nuclear materials science. This paper presented the research progresses in the field of frictional properties of graphite to date, and summarized the impact of main factors such as the environmental atmo-sphere and temperature of external factors on the frictional performance of graphite. Also the other external factors, such as the load, sliding distance and velocity were briefly discussed. The summarized research achievements in the frictional properties of graphite could be used as references in the research field of frictional properties of matrix graphite of pebble fuel elements in HTGR in the future. The preliminary results indicated that the IG-11 and A3-3 matrix graphite had completely different frictional behaviors in air, which further illustrated the necessity of carrying out the research on the frictional properties of A3-3 matrix graphite of pebble fuel elements for HTGR.
出处
《炭素技术》
CAS
北大核心
2014年第6期28-31,36,共5页
Carbon Techniques
基金
国家科技重大专项资助项目(ZX06901)
清华大学自主科研计划资助项目(20121088038)
关键词
石墨
摩擦性能
球形燃料元件
基体石墨
高温气冷堆
Graphite
frictional properties
pebble fuel elements
matrix graphite
high temperature gas-cooled reactor
