Tao Feng , Chong Li , Xingzhao Li , Bingying Wang , Enyang Liu
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引用次数: 0
Abstract
C/C composite material has incomparable mechanical properties compared to other structural materials. It has great application potential in aerospace, nuclear energy, and civil high-tech fields. In this study, Si coatings were deposited on the surface of C/C composite materials using atmospheric plasma spraying with silicon powder as the precursor material. A solid-phase reaction was induced between the Si coating and the C/C substrate through heat treatment, forming a SiC-C/C composite layer. The effects of heat treatment temperature (1300 °C, 1450 °C, 1500 °C, 1550 °C, and 1600 °C) on the microstructure and oxidation resistance of the SiC-C/C composite layer were investigated. The formation mechanism of SiC was analyzed. The results show that the SiC transition layer exhibited the highest density after heat treatment at 1500 °C. The resulting SiC exhibited a morphology of irregular polygonal particles and demonstrated excellent oxidation resistance. The mass loss due to oxidation was limited to 2.12% after 10 h of exposure at 1500 °C.
期刊介绍:
The journal provides an international medium for the publication of theoretical and experimental studies and reviews related to the electronic, electrochemical, ionic, magnetic, optical, and biosensing properties of solid state materials in bulk, thin film and particulate forms. Papers dealing with synthesis, processing, characterization, structure, physical properties and computational aspects of nano-crystalline, crystalline, amorphous and glassy forms of ceramics, semiconductors, layered insertion compounds, low-dimensional compounds and systems, fast-ion conductors, polymers and dielectrics are viewed as suitable for publication. Articles focused on nano-structured aspects of these advanced solid-state materials will also be considered suitable.