Study of Cerium State in the Process of Self-propagating High-temperature Synthesis

4th International Conference on Applied Materials and Manufacturing Technology

材料科学;机械制造

Liang, Li^1 ; Xianhe, Mao^1 ; Xiaoning, Yuan^1 ; Jieying, Lei^1

Northwest Institute of Nuclear Technology, Xi'an

710024, China^1

关键词: Amorphous glass;    Curing material;    Existing forms;    High temperature;    Reaction process;    Reaction temperature;    Self propagating high temperature synthesis;    Self propagating reaction;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/423/1/012102/pdf
DOI  :  10.1088/1757-899X/423/1/012102

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In this paper, thermit was used as the heat source of self-propagating reaction. The main components of sand, Al2O3 and SiO2 were selected as the curing materials with adding 5% CeO2 as the simulated nuclide. The reaction process of simulated nuclide at high temperature and the existing form in the solidification were analysed and characterized by TG-DSC and XRD. The results showed that the obtained solidifications were amorphous glass and ceramic phases. In the Al2O3 and CeO2 system, the reaction temperature was 1320 °C, and Ce was mainly in the form of CeAl11O18 in the solidification. In the system of SiO2 and CeO2, the reaction temperature was 1280 °C, and Ce was mainly in the form of Ce2SiO5 in the solidification.