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| 论文编号: |
122214O120130032 |
| 第一作者所在部门: |
708组 |
| 中文论文题目: |
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| 英文论文题目: |
Preparation of anti-oxidative SiC/SiO2 coating on carbon fibers from vinyltriethoxysilane by sol–gel method
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| 论文题目英文: |
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| 作者: |
吕春祥*
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| 论文出处: |
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| 刊物名称: |
Applied Surface Science
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| 年: |
2013
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| 卷: |
265 |
| 期: |
0 |
| 页: |
603-609 |
| 联系作者: |
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| 收录类别: |
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| 影响因子: |
2.112
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| 摘要: |
The anti-oxidative SiC/SiO2 coating was prepared on carbon fibers by a sol–gel process using vinyltriethoxysilane
(VTES) as the single source precursor. The derived coating was characterized by scanning
electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), X-ray photoelectron
spectroscopy (XPS) and Auger electron spectroscopy (AES). The oxidation resistant properties
of the carbon fiber with and without coating were studied by isothermal oxidation. The results indicated
that the carbothermal reduction reaction led to the decrease of SiO2 phase and the increase of SiC phase
at 1500 ？C. The uniform SiC/SiO2 coating prepared from a sol concentration of 4 wt% and heat treated at
1500 ？C showed the optimal oxidation resistant property. The oxidation resistance of the carbon fiber
was improved by the SiC/SiO2 coating, and the oxidation activation energy was increased by about 23%
as compared with uncoated carbon fiber. |
| 英文摘要: |
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