Open AccessPreparation and Properties of Cf/SiC-ZrC Ultrahigh Temperature Ceramic Matrix Composites
Author(s) -
Yanyan Wang,
Lingyu Zhai,
Xiaobo Li,
Zhengpeng Xing,
Xiaolin Gong,
Pengyu Chen,
Qingsong-Xie
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/678/1/012068
Subject(s) - materials science , composite material , chemical vapor infiltration , microstructure , ceramic matrix composite , ceramic , composite number , melting point , chemical vapor deposition , coating , scanning electron microscope , thermal stability , pyrolysis , chemical engineering , optoelectronics , engineering
Ultra-high temperature materials have many excellent properties, such as high melting point, high specific strength, high thermal conductivity, high conductivity, corrosion resistance and good chemical stability, which make them become high temperature structural materials for aircraft in extreme environments.C f /SiC-ZrC ultra-high temperature ceramic matrix composites were fabricated by the combined process of chemical vapor deposition and precursor infiltration pyrolysis (CVI-PIP) in this study. The phase composition and microstructure features of the composites were characterized using X-ray diffraction, scanning electron microscopy. A PyC layer was observed as the interfacial layer between carbon fiber and the ultrahigh temperature ceramic matrix. It can protect the carbon fiber from damage during the cyclic PIP process. Nano crystalline ZrC particles were observed in the composites. The ablation mechanisms of the composites were tested in arc-jet wind tunnel and it exhibited good ablation-resistant properties. The ablation mechanism of composite materials in wind tunnel environment is discussed.