期刊
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
卷 39, 期 4, 页码 1696-1702出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2018.11.015
关键词
C/C-ZrC-SiC composites; Z-pins like vanadium rods; Oxide compensator; Solid phase sintering; Self-healing capability
资金
- Fundation of China Academy of Launch Vehicle Technology
- State Key Laboratory for Powder Metallurgy [PM-CSU-2015-03]
Novel Z-pins like vanadium rods (V rods) were prepared as oxide compensators to improve ablation resstance of the C/C-ZrC-SiC composites. The microstructure and anti-ablation performance were investigated. Results show that the solid phase sintering promoted the formation of a good interface between the Z-pins like V rods and C/C-ZrC-SiC composites, and the generation of VC and Si3V5 (anti-oxidant phases) in the Z-pins like V rods. The unique Z-pins like V rods changed the local oxidation rate, and flow regime of the formed vanadium oxide with high melting point. And the liquid vanadium oxide flowed radially to the surface of the C/C-ZrC-SiC replacing SiO2 with the self-healing capability and effectivelly healed the holes and cracks. Finally, a dense and homogeneous zirconium/vanadium compound oxides film was genearated to improve the ablation resistance of C/C-ZrC-SiC without any mass and thickness reduction.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据