| 학회 | 한국재료학회 |
| 학술대회 | 2016년 봄 (05/18 ~ 05/20, 여수 디오션리조트 ) |
| 권호 | 22권 1호 |
| 발표분야 | C. 에너지 재료 분과 |
| 제목 | Synthesis and Characteristics of SYNROC Ceramics Synthesized by Solution Combustion Process |
| 초록 | Synroc, an assemblage of multimineral phases (perovskite (CaTiO3), zirconolite (CaZrTi2O7), and hollandite (BaAl2Ti6O16) has been proposed for the immobilization and permanent disposal of radioactive wastes. The combustion process, an externally initiated reaction is self-sustained owing to the exothermic reaction. A significant volume of gas is evolved during the combustion reaction and leads to loosely agglomerated powders. This exothermic reaction provides necessary heat to further carry the reaction in forward direction to produce nanocrystalline powders as the final product. Glycine is used as a fuel, being oxidized by nitrate ions. It is inexpensive, has high energy efficiency, fast heating rates, short reaction times and high compositional homogeneity. In this study, the combustion process was applied to form a solid solution of Gd and Sr doped Synroc. The combustion process using the Me-nitrates form as starting materials was proven to be a simple approach for preparing a solid solution of Gd and Sr into a Synroc structure for immobilizing the radioactive elements of high-level radioactive waste. The Synroc immobilized radioactive elements to determine the properties were analyzed by XRD,SEM/EDS and TEM. |
| 저자 | 김연구, 한영민, 정충환 |
| 소속 | 한국원자력(연) |
| 키워드 | Synroc; combution process |
