材料科学与工程学报2017，Vol.35Issue(2)：248-252,277,6.DOI:10.14136/j.cnki.issn 1673-2812.2017.02.016
聚合物浸渍裂解法制备C/C-ZrC复合材料及其性能
Preparation and Properties of C/C-ZrC Composites by Precursor Infiltration and Pyrolysis
赵春晓 1李红 1任慕苏 1张家宝 1杨敏 1孙晋良1
作者信息
- 1. 上海大学复合材料研究中心,上海200072
- 折叠
摘要
Abstract
C/C-ZrC composites were prepared by precursor infiltration and pyrolysis method (PIP) using organic zirconium as precursor,and low density carbon/carbon composites as performs.The microstructure,mechanical properties,ablation behavior and the anti-ablation mechanism were investigated.The results show that the ZrC phase is uniformly distributed in the materials,the flexural strength of the C/C-ZrC composites with a density of 2.05g·cm-3 is 89.70MPa,and it belongs to the brittle fracture.The linear and mass ablation rates of C/C-ZrC composites after oxy-hydrogen flame ablation for 150s are-2.2 × 10 3mm· s-1 and-1.0 × 10-3g·s-1,respectively,which is much lower than that of C/C composites (linear ablation rates:4.4× 10 a mm·s 1;mass ablation rates:7.5×10 4g·s 1).ZrC exhibits preferential oxidation in the process of ablation.Meanwhile,the formation of the ZrO2 layer can effectively prohibit the heat transfer and infiltration of oxygen,and improve the anti-ablation performance of C/C.关键词
C/C-ZrC复合材料/聚合物浸渍裂解法(PIP)/氢氧焰烧蚀/线烧蚀率/质量烧蚀率Key words
C/C-ZrC composites/precursor infiltration and pyrolysis method (PIP)/oxy-hydrogen flame ablation/linear ablation rates/mass ablation rates分类
通用工业技术引用本文复制引用
赵春晓,李红,任慕苏,张家宝,杨敏,孙晋良..聚合物浸渍裂解法制备C/C-ZrC复合材料及其性能[J].材料科学与工程学报,2017,35(2):248-252,277,6.
