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高分子材料论文翻译求助
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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: 金币+1, 多谢应助！ 2014-04-09 14:55:21
wanghaiju: 金币+45, 翻译EPI+1, ★★★★★最佳答案 2014-04-09 22:02:47
RXMCDM: 金币+1, 多谢应助！ 2014-04-09 14:55:21
wanghaiju: 金币+45, 翻译EPI+1, ★★★★★最佳答案 2014-04-09 22:02:47