期刊
MATERIALS & DESIGN
卷 58, 期 -, 页码 570-576出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2013.12.071
关键词
Ceramic matrix composites; Reactive melt infiltration; Microstructure; Mechanical property; Ablation property
资金
- National Natural Science Foundation of China [90816020, 90916019, 91116015]
- Aid program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province
- Aid program for Innovative Group of National University of Defense Technology
C/ZrC composites were prepared via reactive melt infiltration with zirconium from porous C/C preforms with various pyrocarbon contents. As the pyrocarbon amount in C/C preform increased from 34.1 vol.% to 61.7 vol.%, the densification of C/ZrC composites was hindered and the ZrC content in C/ZrC composites decreased gradually from 35.3 vol.% to 6.3 vol.%. Meanwhile, the flexural strength of C/ZrC composites decreased initially and then increased, but the flexural modulus rose continuously. The flexural strength and modulus of the composites fabricated from the preform with 34.1 vol.% pyrocarbon matrix were 181 +/- 4 MPa and 13.0 +/- 1.2 GPa, respectively, and the mass loss rate and linear recession rate were 0.0031 g/s and 0.0012 mm/s, respectively. (C) 2014 Elsevier Ltd. All rights reserved.
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