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| 论文编号: |
122214O120120263 |
| 第一作者所在部门: |
909组 |
| 中文论文题目: |
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| 英文论文题目: |
Microwave absorption properties of in-situ grown CNTs/SiC composites
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| 论文题目英文: |
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| 作者: |
谢松
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| 论文出处: |
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| 刊物名称: |
Journal of Alloys and Compounds
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| 年: |
2012
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| 卷: |
520 |
| 期: |
1 |
| 页: |
295-300 |
| 联系作者: |
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| 收录类别: |
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| 影响因子: |
2.289
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| 摘要: |
CNTs/SiC composites were synthesized by pyrolysis of methane over SiC supported nickel catalysts. The composites show good microwave absorption ability in the frequency range of 2-18 GHz. The pyrolysis temperature has profound influences on the microwave absorption characteristic, and 700 degrees C is the most suitable temperature for preparation of the composites. The microwave absorption characteristic is also influenced by the Ni loading. By varying the Ni loading from 5 wt.% to 7.5 wt.%, the bandwidth of reflection loss below -10 dB can be broadened by 1.5 GHz under the same conditions. For the composite obtained from 7.5 wt.% Ni loading and the pyrolysis temperature of 700 degrees C, a minimum reflection loss of -37.6 dB can be obtained at 14.5 GHz with a thickness of 1.9 mm and the bandwidth of reflection loss below -10 dB can reach 5.1 GHz (from 12.4 to 17.5 GHz) with a thickness of 2 mm. |
| 英文摘要: |
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| 备注: |
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