FABRICATION AND CHARACTERIZATION OF NOVELFe–NiALLOY COATED CARBON FIBERS FOR HIGH-PERFORMANCE SHIELDING MATERIALS

Fang He, Junjiao Li, Liang Chen, Lixia Chen and Yuan Huang ()
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Fang He: Tianjin Key Laboratory of Composite and Functional Materials, School of Material Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
Junjiao Li: Tianjin Key Laboratory of Composite and Functional Materials, School of Material Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
Liang Chen: Tianjin Key Laboratory of Composite and Functional Materials, School of Material Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
Lixia Chen: Tianjin Key Laboratory of Composite and Functional Materials, School of Material Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
Yuan Huang: Tianjin Key Laboratory of Composite and Functional Materials, School of Material Science and Engineering, Tianjin University, Tianjin 300072, P. R. China

Surface Review and Letters (SRL), 2015, vol. 22, issue 02, 1-8

Abstract: NovelFe–Nialloy coated carbon fibers(Fe–Ni–CFs)were prepared via two-step electrodeposition with an initial synthesis of Fe coatings on the activated carbon fibers and followed by the co-deposition of Fe and Ni. The effect of annealing treatment on structure and properties ofFe–Ni–CFswas studied through SEM, TEM, XRD and VSM. The results indicated that theFe–Nialloy coatings with the thickness of only 0.25 um are highly wrapped on the surface of carbon fibers. The un-annealed coatings showed high saturation magnetization values with 52 dB from 300–1200 MHz, which mainly due to Fe content (18.4 wt.%) of the coatings meets the requirements of high magnetic perm-alloy. The surface quality, crystallinity and conductivity of theFe–Ni–CFswere obviously improved despite of the reduction of the saturation magnetization resulted from the bigger grains after annealing. Based on the above aspects, annealing at 400∘C was preferred for theFe–Ni–CFsto obtain good comprehensive performance. Importantly, theFe–Ni–CFsfilled ABS resin composites showed better Electromagnetic Interference shielding effectiveness than the CFs reinforced ABS composites.

Keywords: Fe–Nialloy coating; carbon fiber; magnetism; conductivity; electrodeposition (search for similar items in EconPapers)
Date: 2015
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DOI: 10.1142/S0218625X15500286

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