微波合成 SiC 模拟放射性石墨固化的可行性研究∗

摘要

笔者针对放射性石墨处理现状，提出一种简单、低成本的放射性石墨固化工艺。该工艺采用固相反应原理，利用石墨的吸波特性在微波场中实现放射性石墨的快速固化处理。以纳米碳粉和超细硅粉为原料，经球磨混合均匀后在微波场中进行合成实验，并采用 XRD、SEM 对所得到的物料进行了物相表征，成功合成出绿色 SiC 粉体，该工艺可用于放射性石墨的固化处理。%This article mainly introduced the treatment of radioactive graphite in recent years,and proposed a simple and eco-nomical process to solidify radioactive graphitebased a solid-phase reaction principle,and the microwave absorbing charac-teristics of graphitein the microwave field.The raw materials are nano carbon powder and silica power,after mixing in a ball mill the mixtureswere treated in microwave field.The obtained materials were characterized by theXRD,SEM means, the results indicate the green SiC powder can be synthesized,the process can be used to the handling of radioactive graph-ite.