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核石墨是 40年代初 ,应建造核裂变反应堆的需要而研究发展出来的石墨材料的一个分支 ,在生产堆、气冷堆和高温气冷堆中用作慢化、反射和结构材料。石墨也是核聚变反应堆面向等离子体材料的很有希望的候选材料。铀的易裂变同位素Ｕ 2 35吸收中子后发生核裂变 :Ｕ 2 35 +ｎ 2Ｆ +
Nuclear graphite is a branch of graphite materials developed in response to the needs of nuclear fission reactors in the early 1940s and is used as a moderating, reflecting and structural material in production reactors, gas-cooled reactors and gas-cooled reactors. Graphite is also a promising candidate for nuclear fusion reactors facing plasma materials. Uranium fission isotope U 2 35 Nuclear fission occurs after absorbing neutrons: U 2 35 + n 2F +