Microstructure and properties of C/C–ZrC composites prepared by hydrothermal deposition combined with carbothermal reduction.
- Resource Type
- Article
- Authors
- Li, Cuiyan; Li, Guibiao; Ouyang, Haibo; Huang, Jianfeng; Hou, Xianghui
- Source
- Journal of Alloys & Compounds. Apr2018, Vol. 741, p323-330. 8p.
- Subject
- *MICROSTRUCTURE
*CARBON fibers
*STRAINS & stresses (Mechanics)
*FRACTURE mechanics
*PLASTIC fracture
*OXIDATION
- Language
- ISSN
- 0925-8388
Carbon fiber reinforced carbon matrix containing ZrC (C/C–ZrC) composites were prepared by hydrothermal deposition combined with carbothermal reduction. The submicron ZrC particles (100–300 nm) were dispersed in the matrix. The stress-strain curves of the composites presented a typical pseudo-plastic fracture behavior. The mass and linear ablation rates of the composites were 3.7 × 10 −3 g/s and 4.2 × 10 −3 mm/s, respectively. The formation of ZrO 2 glass layer reduced erosion of the composites in the ablation center. The continuous C–ZrC–ZrO 2 skeleton layer generated from the oxidation of ZrC can protect the composites from erosion at the ablation brim region. The obtained C/C–ZrC composites present a promising potential as ablation resistance materials. [ABSTRACT FROM AUTHOR]