| 多晶铁纤维的合成与微波吸收性能的研究 | |
| Research on Synthesis and Microwave-Absorbing Behavior of Polycrystalline Iron Fibers | |
| 摘要: | |
| 关键词: 多晶铁纤维 α-FeOOH纤维 五羰基铁 微波吸收性能 | |
| 基金项目: | |
| Abstract: The preparation and microwave-absorbing behavior of polycrystalline iron fibers modified with the thermal decomposition of carbonyl iron were studied in this paper. Through preparation of α-FeOOH fiber precursor, dehydration, reduction with hydrogen, modification with the thermal decomposition of carbonyl iron and passivation, polycrystalline iron fibers were yielded. α-FeOOH fiber precusor with optimum diameter and aspect ratio was made by using uniform seed crystal with optimum concentration and controlling the reaction time. Lacunas from procedure of dehydration and reduction were well modified with carbonyl iron. The sample with 1.95 mm thickness containting 60 % by weight of modified polycrystalline iron fibers showed reflection loss over 10 dB within the frequency range of 8.5～14.6 GHz, and the maximum reflection loss was 21.8 dB at 11.3GHz, while the sample of nonmodified polycrystalline iron fiber showed less reflection loss under same conditions. | |
| Keywords: polycrystalline iron fiber α-FeOOH fiber carbonyl iron microwave-absorbing behavior | |
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| 刘爱祥,茹淼焱,孟凡君,张立成,吴秀荣,张维咸,张其震,周其凤.多晶铁纤维的合成与微波吸收性能的研究[J].无机化学学报,2004,20(3):358-362. | |
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