| Ni-P/膨胀石墨复合材料的制备及电磁屏蔽性能 |
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| 引用本文： | 魏来,黄玉安,张积桥,张世远,唐涛,徐铮,沈俭一,黄润生. Ni-P/膨胀石墨复合材料的制备及电磁屏蔽性能[J]. 磁性材料及器件, 2011, 42(2): 32-36 |
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| 作者姓名： | 魏来 黄玉安 张积桥 张世远 唐涛 徐铮 沈俭一 黄润生 |
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| 作者单位： | 南京大学物理系,江苏南京,210093;南京工程学院,江苏南京,211167;南京大学,化学化工学院,江苏南京210093 |
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| 基金项目： | 国家863计划资助项目,国家自然科学基金资助项目,江苏省科技厅高技术资助项目 |
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| 摘 要： | 用化学镀方法将镍磷合金负载在膨胀石墨(EG)表面上从而制备了Ni-P/EG复合电磁屏蔽材料.扫描电镜观察表明,这种用化学镀制备的镍磷镀层紧密地附着在膨胀石墨基体上.X射线衍射分析显示,制备态镍磷镀层呈非晶态,经500℃热处理晶化后镀层呈多相结构.磁测量结果证实非晶镀层饱和磁化强度较低,热处理晶化后饱和磁化强度增大、矫顽...
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| 关 键 词： | 镍磷合金 膨胀石墨 形貌 相结构 磁性能 电磁屏蔽 |
Preparation of Ni-P/expanded graphite composite for electromagnetic shielding |
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| WEI Lai,HUANG Yu-an,ZHANG Ji-qiao,ZHANG Shi-yuan,TANG Tao,XU Zheng,SHEN Jian-yi,HUANG Run-sheng. Preparation of Ni-P/expanded graphite composite for electromagnetic shielding[J]. Journal of Magnetic Materials and Devices, 2011, 42(2): 32-36 |
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| Authors: | WEI Lai HUANG Yu-an ZHANG Ji-qiao ZHANG Shi-yuan TANG Tao XU Zheng SHEN Jian-yi HUANG Run-sheng |
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| Affiliation: | WEI Lai1,HUANG Yu-an2,ZHANG Ji-qiao3,ZHANG Shi-yuan1,TANG Tao1,XU Zheng3,SHEN Jian-yi3,HUANG Run-sheng1 1.Department of Physics,Nanjing University,Nanjing 210093,China,2.Nanjing Engineering College,Nanjing 211167,3.School of Chemistry and Chemical Engineering |
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| Abstract: | Ni-P alloy was loaded on the surface of expanded graphite(EG) by chemical plating to prepare a Ni-P/EG composite with electromagnetic radiation shielding effectiveness.Scanning electron microscope(SEM) results showed that the Ni-P layer was adhered tightly to the surface of EG.The X-ray diffraction(XRD) patterns and the magnetic measurements of the composite revealed that this chemical plated Ni-P layer is amorphous and had a low saturation magnetization.After crystallized at 500℃ for 3h in N2 atmosphere,the Ni-P layer demonstrates multi-phase components and its saturation magnetization increases and coercivity decreases,presenting soft magnetism.The electromagnetic shielding effectiveness(SE) measured according to the SJ20524-95 standard for crystallized Ni-P/EG composite with areal density of 0.96 kg/m2 was 54 to 75 dB in the range of 300 kHz to 1.5 GHz. |
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| Keywords: | Ni-P alloy expanded graphite topography phase composition magnetic properties electro-magnetic radiations shielding |
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