陈方蓉,李维,刘星,王峰,余本潮,陈志宏,官建国.高磁损耗FeNiCo/PET叠层膜的电镀法制备研究[J].包装工程,2024,45(15):288-296.
CHEN Fangrong,LI Wei,LIU Xing,WANG Feng,YU Benchao,CHEN Zhihong,GUAN Jianguo.Preparation and Study of FeNiCo/PET Stacked Films with High Magnetic Loss by Electroplating Method[J].Packaging Engineering,2024,45(15):288-296. |
| 高磁损耗FeNiCo/PET叠层膜的电镀法制备研究 |
| Preparation and Study of FeNiCo/PET Stacked Films with High Magnetic Loss by Electroplating Method |
| 投稿时间：2024-05-07 |
| DOI：10.19554/j.cnki.1001-3563.2024.15.033 |
| 中文关键词: 电镀法 涡流效应 吸波材料 高磁导率 |
| 英文关键词: electroplating method eddy current effect absorbing material high magnetic permeability |
| 基金项目:国家自然科学基金(52071239) |
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| 中文摘要: |
| 目的 磁性合金薄膜在高频微波段具有高损耗的优势，但其磁性能随着厚度的增大而快速衰减，本文探讨磁性金属膜磁性能随厚度变化的原因，并发展一种大厚度条件下保持高磁损耗的低成本方法。方法 以PET为基材，采用电镀法制备高磁损耗FeNiCo薄膜，通过多层叠加，层压获得具有绝缘夹层结构的磁性金属叠层厚膜。结果 当PET夹层厚度为5 μm、FeNiCo磁性膜厚度为1.7 μm、总层数为10层即总厚度为67 μm时，在1 GHz处的磁导率虚部仍可达到40.69，tμ''值为2 726。经微带线法测试，[FeNiCo/PET]10叠层复合膜在1 GHz处的S21为−9.0 dB，Ploss/Pin为0.83，显著高于60 μm厚的传统磁性贴片商品性能(分别为−1.9 dB和0.58)。结论 绝缘间隔层的引入可以有效抑制层间的涡流效应，使其在较厚的厚度下仍能保持相对较高的磁导率和磁损耗，从而实现高效的电磁噪声抑制性能。 |
| 英文摘要: |
| The magnetic alloy film has the advantage of high loss in the GHz range of microwave, but its magnetic permeability decays rapidly with the increase of thickness. The work aims to discuss the reason of magnetic decaying with the thickness of magnetic alloy films, and develop a low-cost method to maintain high magnetic losses under the condition of large film thickness. With PET as the substrate, FeNiCo films with high magnetic loss were prepared by electroplating, and magnetic metal stacked films with insulating interlayer structure were obtained by stacking the as-prepared alloy films with insulated substrates. The experimental results showed that when the thickness of the PET interlayer was 5 μm, the thickness of the FeNiCo magnetic film was 1.7 μm, and the total thickness of the stacked 10 magnetic films was 67 μm, the imaginary permeability at 1 GHz was as large as 40.69, and the value of reached 2 726. Moreover, the measured S21and Ploss/Pin of [FeNiCo/PET]10 by the micro-stripline method at 1 GHz were −9.0 dB and 0.83 dB, which were much better than the −1.9 dB and 0.58 of traditional magnetic composites with a thickness of 60 μm. Therefore, the insulation interlayers can effectively suppress the eddy current effect between magnetic films, so that it can maintain relatively high magnetic loss at a very large thickness, and achieve high electromagnetic noise suppression performance than existing materials. |
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