Irradiation resistance of preceramic paper‐derived SiCf/SiC laminated composites

• Published in: Journal of materials science 2022-06, Vol.57 (22), p.10153-10166
• Main Authors: Li, Ke, Kashkarov, Egor, Ma, Hailiang, Fan, Ping, Zhang, Qiaoli, Zhang, Peng, Cao, Xingzhong, Zhang, Jilong, Wu, Zhaohui, Lider, Andrey, Travitzky, Nahum, Yuan, Daqing
• Format: Article
• Language: English
• Subjects: Amorphization; Ceramic fiber reinforced ceramics; Characterization and Evaluation of Materials; Chemistry and Materials Science; Classical Mechanics; Composite materials; Composites & Nanocomposites; Crystallography and Scattering Methods; High temperature; Holes; Ion irradiation; Laminar composites; Laminates; Materials Science; Mechanical properties; Nanocomposites; Nuclear reactors; Nucleation; Plasma sintering; Point defects; Polymer Sciences; Radiation; Radiation damage; Radiation dosage; Recrystallization; Silicon; Silicon carbide; Solid Mechanics; Spark plasma sintering; Zirconium alloys
• ISSN: 0022-2461; 1573-4803
• DOI: 10.1007/s10853-022-07294-6

Influence of the ion irradiation at elevated temperatures on the novel preceramic paper-derived SiC f /SiC laminated composites fabricated by spark plasma sintering was investigated. The composites were subjected to high-dose simultaneous irradiation of silicon (Si) ions at 400 °C. Irradiation induces amorphization of the damaged area up to 30 dpa, and then recrystallization of amorphous regions with increasing dose occur. No evidence of cavities was found in SiC f /SiC composites irradiated by silicon ions up to 100 dpa. The irradiated composites pre-injected with 5000 appm He displays low swelling (~ 0.3%). The irradiation with Si ions may suppress the cavity nucleation and they growth in SiC layers.