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[求助]
高分子材料論文翻譯求助
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The nanocomposite multilayer film composed of substituted BaFe12O19and TiO2was prepared using sol–gel method. The multilayer film is arranged according to the frequencies of microwave absorption peaks for each layer film. The composite film with the highest absorption frequency is on the bottom. This arrangement makes more microwave energy to enter the multilayer film and to be absorbed. The microwave absorption property of composite multilayer film is excellent. The maximum loss efficiency almost reaches–40 dB. The frequency range with the loss above –10 dB is more than 7 GHz. It is much broader than those of substituted barium ferrites powders. The composite multilayer film is relatively uniform and even. Most grains belong to nanometer scope. The compounding with TiO2and the nanometer effect also result in the improvement of microwave absorption property of the multilayer film. Acknowledgements The financial support from the National Natural Science Foundation of China is gratefully acknowledged. |
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RXMCDM: 金幣+1, 多謝應(yīng)助！ 2014-04-09 14:55:21
wanghaiju: 金幣+45, 翻譯EPI+1, ★★★★★最佳答案 2014-04-09 22:02:47
RXMCDM: 金幣+1, 多謝應(yīng)助！ 2014-04-09 14:55:21
wanghaiju: 金幣+45, 翻譯EPI+1, ★★★★★最佳答案 2014-04-09 22:02:47
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由BaFe12O19和TiO2替代的納米復(fù)合材料高分子多層膜根據(jù)溶膠——凝膠方法制備而得。該多層膜根據(jù)每一層膜的微波吸收峰的頻率排列。具有最高吸收頻率的復(fù)合膜位于底部。這種排列方式能夠使更多的的能量進入多層膜并被其吸收。復(fù)合多層膜的微波吸收性能是卓越的。最大損失效率幾乎達到40 dB。損失超過–10 dB以上的頻率范圍多于7GHz。這比鐵鋇氧化物粉末替代物的范圍寬。復(fù)合多層膜是相對一致且平整的。大多數(shù)顆粒屬于納米范圍。與TiO2形成復(fù)合物及其納米效果導(dǎo)致多層膜微波吸收性能的改善。 致謝 感謝中國自然科學(xué)基金給予的資金支持。 |
2樓2014-04-09 14:53:27
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