硅酸盐学报2016，Vol.44Issue(7)：1002-1007,6.DOI:10.14062/j.issn.0454-5648.2016.07.14
C/C-ZrB2-SiC复合材料的制备及其性能
Preparation and Properties of C/C-ZrB2-SiC Composites
张强 1赵景鹏 2崔红 3孟祥利 1杨星 2闫联生1
作者信息
- 1. 西北工业大学材料学院，西安 710072
- 2. 西安航天复合材料研究所，西安 710025
- 3. 西安航天复合材料研究所，西安 710025
- 折叠
摘要
Abstract
C/C–ZrB2–SiC composites were prepared by combination of chemical vapor infiltration (CVI) and precursor infiltration and pyrolysis (PIP) process. A mixture of ZrB2 polymeric precursor (PBZ) and polycarbosilane (PCS) was introduced as precursor of ZrB2–SiC matrix. The mechanical properties and ablation properties of the composites were investigated. The results show that the tensile, flexural and shear strengths of the C/C–ZrB2–SiC composites reaches to 91.2, 214, and 35.8 MPa, respectively, higher than that of counterpart prepared by slurry infiltration (SI) process. The ablation behavior of the C/C–ZrB2–SiC composites was studied by oxyacetylene torch test at a heat flux of 3 200 kW/m2 for 600 s. C/C–ZrB2–SiC composites have an average mass ablation rate of 0.002 mm/s and an average linear ablation rate of 0.7 mg/s, which indicate that the composite possesses well resistance to ablation and oxidation.关键词
复合材料/二硼化锆/前驱体浸渍裂解/力学性能/烧蚀性能Key words
composite/ZrB2/precursor infiltration and pyrolysis/mechanical property/ablation property引用本文复制引用
张强,赵景鹏,崔红,孟祥利,杨星,闫联生..C/C-ZrB2-SiC复合材料的制备及其性能[J].硅酸盐学报,2016,44(7):1002-1007,6.
