中文摘要：

用自蔓延高温合成技术（SHS）,以TiO2、C、Al和CeO2为原料制备出模拟含锕系核素的放射性石墨固化体,借助X射线衍射仪（XRD）和扫描电子显微镜（SEM）等分析手段,对SHS法所制备的含锕系元素An4＋放射性石墨固化体进行了分析和研究。实验结果表明：SHS技术应用于固化含模拟锕系元素的放射性石墨在ω（CeO2）≤8%时可自行维持反应,但反应并未进行彻底,反应产物中包含反应物C、TiO2以及Ti和O组成的其他物质,CeO2的固溶度可达2%;SEM照片显示,固化体微观形貌不规则,以板块状为主。

英文摘要：

Using self-propagating high-temperature synthesis technology （SHS）, the solidified body of simulated radioactive graphite containing actinides was prepared with TiO2, C, Al and CeO2 as raw material. The products were investigated by X-ray diffraction and scanning electron microscopy. The results shown that the solidification process by the SHS method maintains when ω（CeO2） ≤8% but not thorough due to the existence of TiO2 and C in the combustion products as well as some unknown diffraction peaks appeared in the XRD fingerprint; the solubility of CeO2 reached 2%; and the morphology of the solidified body was irregular and mainly plate-like.