1. Dynamic ablation of C/C-SiC-AlSi and C/C-SiC-ZrB2-AlSi at changing impacted angle.
- Author
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Liu, Lei, Ma, Jingtao, Feng, Wei, Han, Qinxin, Wang, Xuechao, Wang, Yuchan, Wang, Ping, Yang, Zhong, and Guo, Yongchun
- Subjects
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ORBITAL transfer (Space flight) , *CARBON fibers , *SURFACE temperature , *ANGLES , *FIBERS - Abstract
Thermal protection component and jet vane of aircraft with trajectory transfer ability are attacked by heat flow from variable direction. To understand the dynamic ablation characteristics, C/C-SiC-AlSi and C/C-SiC-ZrB 2 -AlSi were ablated in plasma at cyclic changing impacted angle (±45o) and compared with the conventional test at steady state. Accompanied with higher and fluctuant surface temperatures, the periodical changed stress from scouring accelerated the consumption of AlSi matrix and strengthened the mechanical denudation of carbon fiber, which led to severer ablations in the dynamic environment. • C/C-SiC-AlSi and C/C-SiC-ZrB 2 -AlSi were dynamic ablated in plasma. • The ablation in dynamic condition was severer than that in steady environment. • AlSi consumption and fiber denudation were strengthened in dynamic condition. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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