About this Materials Science article
In-situ TEM investigations on the microstructural evolution of SiC fibers under ion irradiation: Amorphization and grain growth by Shanshan Xu; Ce Zheng; Yichun Bi; Qingping Mao; Hailong Qin; Xiaoqiang Li is a Materials Science article available to read on EtoBox.
SiC/SiC composites are attractive candidates for many nuclear systems. As reinforcements, SiC fibers are critical to the in-service performance of composites. In this work, the temperature effects on the irradiation-induced microstructural evolution of Cansas-III SiC fibers were investigated using in-situ transmission electron microscopy (TEM). With in-situ 800 keV Kr ion irradiation, at room temperature (RT) the SiC fiber experienced heterogeneous amorphization and became completely amorphous at ∼2.6 dpa. Above the critical temperature of crystalline-to-amorphous (Tc), SiC fibers underwent a simultaneous process of carbon packet disappearance and nano-grain growth at 300 °C and 800 °C. Possible mechanisms were discussed.
It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- Shanshan Xu; Ce Zheng; Yichun Bi; Qingping Mao; Hailong Qin; Xiaoqiang Li
- Publisher
- Elsevier BV
- Published
- 2023
- Language
- EN
- Field
- Materials Science (Physical Sciences)