As a safe and sustainable clean energy,controllable thermonuclear fusion energy is an ideal energy to meet the needs of human beings in the future.At pres-ent,the engineering and commercial application of nuclear fusion energy still faces many technical problems.Among them,the design and manufacture of the divertor target plate,an important component in the nuclear fusion device,is one of the key problems that need to be solved urgently to realize the stable operation of the nuclear fusion reactor.The divertor target plate is the most intense area of plasma bombardment.It is subjected to huge particle irradiation with high flux and high thermal load impact.Besides,the divertor undertakes the main heat removal function of the to-kamak device,with extremely harsh service environment.Therefore,the research and development of divertor target materials with excellent performance is a key step to promote nuclear fusion research to practicality.At present,metal beryllium,carbon-based materials and tungsten-based materials are the main three divertor target materials.This paper discusses the selection and research progress of these materials,comparing and ana-lyzing the advantages and disadvantages of various materials used in the divertor target plate as well as the existing technical problems.The aim is to provide a reference for promoting the design and manufacture of the divertor target plate.
关键词
核聚变能/金属铍/碳基材料/钨基材料/偏滤器靶板材料
Key words
nuclear fusion energy/metal beryllium/carbon-based material/tungsten-based material/divertor target plate material