| 核辐射对透波材料介电性能影响 |
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| 引用本文： | 宫兆合,刘建华.核辐射对透波材料介电性能影响[J].北京航空航天大学学报,2007,33(8):991-993. |
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| 作者姓名： | 宫兆合 刘建华 |
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| 作者单位： | 北京航空航天大学,材料科学与工程学院,北京,100083;北京航空航天大学,材料科学与工程学院,北京,100083 |
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| 摘 要： | 用加速老化试验的方法,在有氧存在的条件下,研究了TDE-85环氧树脂/E玻璃纤维体系、4501A双马来酰亚胺树脂/D3W玻璃纤维体系2种透波材料介电性能受核辐射影响的规律.用60Co辐射源在辐射量为50~800kGy范围内对样件进行辐射,用波导法测试样件的介电常数和介电损耗,测试频率为10GHz.结果发现2种体系透波材料介电性能受核辐射的影响较小,且后者比前者具有更好的抗辐射稳定性.同时利用IR,TGA等手段研究了材料介电性能变化的原因.
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| 关 键 词： | 核辐射 透波 介电性能 材料老化 |
| 文章编号： | 1001-5965（2007）08-0991-03 |
| 收稿时间： | 2006-10-20 |
| 修稿时间： | 2006-10-20 |
Effect of nuclear radiation on dielectric properties of wave-transmitting materials |
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| Gong Zhaohe,Liu Jianhua.Effect of nuclear radiation on dielectric properties of wave-transmitting materials[J].Journal of Beijing University of Aeronautics and Astronautics,2007,33(8):991-993. |
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| Authors: | Gong Zhaohe Liu Jianhua |
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| Institution: | School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China |
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| Abstract: | The effect of nuclear radiation on dielectric properties of epoxy TDE-85/glass fiber E composite and bismaleimide 4501A/glass fiber D3W composite was studied in oxygen ambience using accelerated aging mothed. After samples were irradiated by 60Co -rays at a range of dose 50~800kGy in air, the dielectric loss and dielectric permittivity of materials were measured using wave-guide method at 10GHz. It was found that the dielectric loss and dielectric permittivity increases with radiation dose, but increasing is not much, and the antiradiation property of 4501A/glass fiber D3W composite is better than that of TDE-85/glass fiber E composite. The change reasons of the dielectric property were analyzed using infrared (IR) and dynamic thermo gravimetric analysis (TGA) . |
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| Keywords: | nuclear radiation wave transmitting dielectric properties aging of materials |
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