Influence of helium ion radiation on the nano-grained Li2TiO3 ceramic for tritium breeding
| Autor: | Wen Liu, Hailiang Wang, Hao Guo, Ruichong Chen, Qiwu Shi, Yichao Gong, Hailong Wang, Mao Yang, Jianqi Qi, Tiecheng Lu, Zhangyi Huang |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Materials science Scanning electron microscope Process Chemistry and Technology Analytical chemistry chemistry.chemical_element Sintering 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Titanium oxide Ion chemistry visual_art 0103 physical sciences Nano Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Lithium Ceramic 0210 nano-technology Helium |
| Zdroj: | Ceramics International. 47:28357-28366 |
| ISSN: | 0272-8842 |
| Popis: | Lithium titanium oxide (Li2TiO3) tritium breeder ceramic plates with nano- and coarse-grain size were fabricated. The preparation methods contained CTAB-modifying precursor, combining dry-pressing with isostatically cold-pressing, and calcinating at optimized sintering temperature in turn. Then their properties were characterized after radiation by 280 keV helium (He+) ion. Extensive characterization analyses were performed to reveal the changes in nano-grained and coarse-grained Li2TiO3 after radiation. They contained glancing angle X-ray diffraction (GIXRD), atomic force microscopy (AFM), electron spin resonance (ESR), and scanning electron microscopy (SEM). The results showed as follows, GIXRD peak position of the nano-grained Li2TiO3 was more stable than the coarse-grained Li2TiO3 after radiation. Nano-grained Li2TiO3 was less rough and swollen than the coarse-grained one after radiation. Nano-grained Li2TiO3 had more excellent structural stability and less defect concentration of Eʹ-center after radiation. As a result, nano-grained Li2TiO3 might have much better radiation tolerance than the coarse-grained one by comparing characterization results. |
| Databáze: | OpenAIRE |
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