用(yong)(yong)于原子(zi)(zi)能工(gong)業(ye)和(he)國(guo)防(fang)(fang)工(gong)業(ye):石(shi)墨(mo)(mo)具有良好的中(zhong)子(zi)(zi)減(jian)速劑用(yong)(yong)于原子(zi)(zi)反(fan)應(ying)(ying)(ying)(ying)堆中(zhong)，鈾一石(shi)墨(mo)(mo)反(fan)應(ying)(ying)(ying)(ying)堆是應(ying)(ying)(ying)(ying)用(yong)(yong)較(jiao)多的一種原子(zi)(zi)反(fan)應(ying)(ying)(ying)(ying)堆。作(zuo)為動(dong)力(li)用(yong)(yong)的原子(zi)(zi)能反(fan)應(ying)(ying)(ying)(ying)堆中(zhong)的減(jian)速材(cai)料應(ying)(ying)(ying)(ying)當具有高(gao)熔點，穩(wen)定，耐(nai)腐蝕的性能，石(shi)墨(mo)(mo)可以滿足上述要求。作(zuo)為原子(zi)(zi)反(fan)應(ying)(ying)(ying)(ying)堆用(yong)(yong)的石(shi)墨(mo)(mo)純(chun)度要求很(hen)高(gao)，特別是其中(zhong)硼含量應(ying)(ying)(ying)(ying)少于0.5PPM。在國(guo)防(fang)(fang)工(gong)業(ye)中(zhong)還(huan)用(yong)(yong)石(shi)墨(mo)(mo)制(zhi)造固體燃料火箭(jian)的石(shi)墨(mo)(mo)噴(pen)嘴，石(shi)墨(mo)(mo)鼻錐，宇宙航行設備的零(ling)件，隔熱材(cai)料和(he)防(fang)(fang)射線材(cai)料。