Journal ArticleDOI
Surface characteristics of electroless nickel plated electromagnetic shielding wood veneer
Wang Li-juan,Li Jian,Liu YiXing +2 more
Reads0
Chats0
TLDR
In this article, 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.Abstract:
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. Mean-while, 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 imrpoved. 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.read more
Citations
More filters
Journal ArticleDOI
Biogeochemical behavior of nickel under different abiotic stresses: toxicity and detoxification mechanisms in plants
Nuzhat Ameen,Muhammad Amjad,Behzad Murtaza,Ghulam Abbas,Muhammad Shahid,Muhammad Imran,Muhammad Naeem,Nabeel Khan Niazi +7 more
TL;DR: This review summarizes and critically discusses data about sources, bioavailability, and adsorption/desorption of Ni in soil; its soil–plant transfer and effect on other competing ions; accumulation in different plant tissues; essential and toxic effects inside plants; and tolerance mechanisms adopted by plants under Ni stress.
Journal ArticleDOI
Scalable Fabrication of Natural-Fiber Reinforced Composites with Electromagnetic Interference Shielding Properties by Incorporating Powdered Activated Carbon
TL;DR: It was indicated that the incorporation of PAC into the composites was very effective for absorbing electromagnetic waves, which resulted in a decrease in secondary electromagnetic pollution.
Journal ArticleDOI
Electromagnetic Shielding Properties of Iron Oxide Impregnated Kenaf Bast Fiberboard
TL;DR: In this paper, the electromagnetic shielding effectiveness of kenaf bast fiber based composites with different iron oxide impregnation levels was investigated using the scanning electron microscope (SEM), where the iron oxide nanoparticles were observed on the surfaces and inside the micropore structures of single fibers.
Journal ArticleDOI
Dual-functional natural-fiber reinforced composites by incorporating magnetite
Changlei Xia,Kaili Wang,Youming Dong,Shifeng Zhang,Sheldon Q. Shi,Liping Cai,Han Ren,Hualiang Zhang,Jianzhang Li +8 more
TL;DR: In this article, a composite with dual functional properties, including electromagnetic shielding and paramagnetic functions, as well as improved water-resistant property, was fabricated using vacuum assisted resin transfer molding (VARTM) process.
Journal ArticleDOI
Preparation of electromagnetic shielding wood-metal composite by electroless nickel plating
Wang Li-juan,Li Jian,Liu YiXing +2 more
TL;DR: In this paper, the effects of solution amount, plating time and plating temperature on surface resistivity and electromagnetic shielding effectiveness were investigated by using electroless nickel plating, and P content, microstructure and surface feature of layers obtained at different temperatures were analyzed by energy dispersion spectrometer (EDS), X-ray diffraction (XRD) and scanning electron microscopy (SEM).
References
More filters
Patent
Electromagnetic shielding materials
TL;DR: In this paper, conductive electromagnetic shielding (EMS) compositions can be formulated to provide effective shielding over a broad range of frequencies, e.g. 30 MHz to 110 GHz.
Journal ArticleDOI
Electromagnetic Shielding Particleboard with Nickel-Plated Wood Particles
TL;DR: In this paper, the authors investigated the production of wood materials with electrical and effective electromagnetic shielding properties and found that wood particles metallized by electroless plating were suitable as a raw material for the manufacture of particleboard.
Journal Article
Electromagnetic shielding effectiveness of particleboard containing nickel-metalized wood-particles in the core.
C. Nagasawa,Y. Kumagi,K. Urabe +2 more
Journal Article
Electromagnetic interference shie lding and wave -absorbing materials
TL;DR: In this article, the significance of study on the electromagnetic interference (EMI)shielding materials and the wave-ab sorbing materials is explained, their working principle is reviewed, and the main kinds of the EMI shielding materials and wave absorbing materials are summarized.
Related Papers (5)
A simple process for electroless plating nickel–phosphorus film on wood veneer
Lijuan Wang,Jian Li,Haibing Liu +2 more
A new process for preparing conducting wood veneers by electroless nickel plating
Jian Li,Lijuan Wang,Haibing Liu +2 more