|
|
|
| High Temperature Oxidation Resistance of Carbon Nanotubes Reinforced Ceramic Matrix Composites |
| SUN Yan, NIU Li, ZHANG Xinjian
|
| School of Mechanical Engineering, Anhui Mechanical and Electrical Vocational and Technical College, Wuhu 241002，China |
|
|
|
|
Abstract To study the dispersion performance, high-temperature stability and phase transformation behavior of composite materials, the high-temperature oxidation resistance of carbon nanotube-reinforced ceramic matrix composites is investigated. Carbon nanotubes were treated with acidic liquid. The treated carbon nanotubes were combined with alumina ceramic matrix materials to prepare powder materials, and the powder was sintered to form carbon nanotube-reinforced ceramic matrix composite material blocks. The increase in oxidation mass and the thermogravimetric loss rate of the composite material under different amounts of carbon nanotubes were analyzed. The high-temperature oxidation resistance of the composite material under the changes of sintering temperature and ablation distance was determined through microscopic analysis. The test results show that when the dosage of carbon nanotubes is 35%, the increase value of oxidation mass and the thermogravimetric loss rate of the composite material are both relatively low, and the high-temperature oxidation resistance performance is good. When the sintering temperature is 1500 ℃, the interior of the composite material is relatively compact and oxidation is not likely to occur. When the ablation distance is relatively close, it will lead to the destruction of the high-temperature oxidation resistance of this material. Therefore, attention should be paid to the usage environment of this material.
|
|
Published: 20 December 2025
|
|
|
|
|
|
|
|
