• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Forestry Research >Surface characteristics of electroless nickel plated electromagnetic shielding wood veneer
【24h】

Surface characteristics of electroless nickel plated electromagnetic shielding wood veneer

机译：化学镀镍电磁屏蔽木饰面的表面特性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Wood is a kind of porous natural material with very poor electro-conductivity, and it has almost no function of electromagnetic shielding. The method of electroless nickel plating was used to produce wooden material with electrical and effective electromagnetic shielding properties. Ni-P alloy layer was obtained on wood surface. The surface feature of plated wood veneer was observed by SEM and the surface composition and microstructure of the layer under different conditions were investigated by EDS and XRD respectively. Meanwhile, the relevant surface resistivity and electromagnetic shielding effectiveness were measured. Correlations of the phosphorous content in the layer to the structure of Ni-P alloy, electro-conductivity and electromagnetic shielding of plated veneers were discussed. SEM photos showed that the surface of electroless nickel plated veneers were covered with Ni-P alloy layer entirely, which made wood veneers more like metal. At the same time, the results showed that with the decreasing of the phosphorous content in the layer, the microstructure of Ni-P alloy layer transformed to be microcrystalline and electro-conductivity and electromagnetic shielding effectiveness were improved. When the phosphorous content was less than 2.37wt pct in the layer, the microstructure of Ni-P alloy layer was microcrystalline structure and its surface resistivity and electromagnetic shielding effectiveness were nearly 0.5 Ω/□ and 55-60dB respectively.
机译：木材是一种导电性很差的多孔天然材料，几乎没有电磁屏蔽功能。化学镀镍的方法被用于生产具有电气和有效电磁屏蔽性能的木质材料。在木材表面获得Ni-P合金层。用扫描电镜（SEM）观察了木饰面的表面特征，用EDS和XRD分别研究了不同条件下该层的表面组成和微观结构。同时，测量了相关的表面电阻率和电磁屏蔽效果。讨论了该层中磷含量与Ni-P合金的结构，电导率和单板的电磁屏蔽的关系。扫描电镜照片显示，化学镀镍贴面的表面完全被Ni-P合金层覆盖，这使木质贴面更像金属。同时，结果表明，随着层中磷含量的降低，Ni-P合金层的组织转变为微晶，提高了导电性和电磁屏蔽效果。当该层中的磷含量小于2.37wt％时，Ni-P合金层的显微组织为微晶结构，其表面电阻率和电磁屏蔽效率分别接近0.5Ω/□和55-60dB。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号