Localized Helium Implantation in SiCf/SiCm Composites Comparing Fiber and Matrix Swelling
| Autor: | M. P. Popovic, M. V. Ambat, S. Stevenson, Peter Hosemann, A. Scott, Mehdi Balooch, David Frazer, Joey Kabel |
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| Rok vydání: | 2019 |
| Předmět: |
Fusion
Materials science Atomic force microscopy Fission 0211 other engineering and technologies General Engineering chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology Cladding (fiber optics) Microstructure chemistry medicine General Materials Science Irradiation Swelling medicine.symptom Composite material 0210 nano-technology Helium 021102 mining & metallurgy |
| Zdroj: | JOM. 72:170-175 |
| ISSN: | 1543-1851 1047-4838 |
| Popis: | Composites formed by SiC fiber reinforcement of a SiC matrix are materials of interest for use in high temperature, high strength, and high irradiation condition applications. These materials have been considered for use in both fusion and fission reactors due to their excellent physical and neutronic properties. Recent attention has focused on such materials’ ability to act as accident-tolerant fuel cladding in light water reactors. The work presented herein studies the swelling behavior of these materials using a novel rapid helium-ion implantation approach. Localized helium implantation was conducted to a dose of 5 × 1017 ions/cm2 in fibers and matrix independently. The results showed that the height increase measured using atom force microscopy (AFM) was significantly less for the fibers than the matrix, potentially due to their finer microstructure. |
| Databáze: | OpenAIRE |
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