magnetic properties of nickel polymer matrix composites

Enhanced Initial Permeability and Dielectric Constant in a ...

Large ferrite particles in the composite not only act as a magnetic phase, thus endowing the composite with a high initial permeability, but also present (in a high volume fraction) a discrete (non‐percolating) phase, confining polymer and metallic particles into a continuous double‐percolating structure of …

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Polymer Composites with Oriented Magnetic Nanowires as …

Polymer Composites with Oriented Magnetic Nanowires as Fillers Li Sun, and Kusuma Keshoju Department of Mechanical Engineering, University of Houston, Houston, TX, 77204-4006 ABSTRACT Metallic nickel nanowires with excellent physical properties have been introduced into polydimethylsiloxane (PDMS) matrix to form polymer nanocomposites ...

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Structure, mechanical and magnetic properties of Al4C3 ...

May 02, 2018· A new type of nanocomposite, Ni-Al 4 C 3 was prepared using Al 4 C 3 as reinforcement by cathodic co-deposition at different current densities (1.0 to 5.0 A dm −2) from a nickel acetate-N-methyl formamide (non-aqueous) bath.Influence of current density and incorporation of Al 4 C 3 particles in nickel matrix on the structure and properties of the composite coatings was investigated.

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Mechanical Characterization of Nickel Nanoparticles ...

composites with particle concentration of 15 vol. % and cured at 100°C. Keywords: polydimethylsiloxane, nickel nanoparticles, nanocomposites 1. PDMS polymer (Sylgrad 184) was acquired from Dow INTRODUCTION Magnetic polymer composites consisting of polymer matrix and magnetic fillers are emerging as a new class of multi-functional materials.

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Synthesis and magnetic properties of polymer nanocomposites

Synthesis and magnetic properties of polymer nanocomposites with embedded iron nanoparticles. Journal of Applied Physic s (2004) 95 (3), 1439 1443. 48) Wizel, S., R. Prozorov, Y. Cohen, D. Aurbach, S. Margel, A. Gedanken. The preparation of metal polymer composite materials using …

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MECHANICAL AND MAGNETIC PROPERTIES OF …

mechanical and magnetic properties of final magnetic composite materials with epoxy matrix. The amount of the magnetic filler is directly responsible for magnetic behavior of obtained bonded magnets. In other hand, the fraction of epoxy polymer plays the most important role in mechanical properties of the final Nd-Fe-B/epoxy composite materials.

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Fabrication and Characterization of Nickel Nanowire ...

Mechanical properties are resolved by tensile tests performed by an instron. Preliminary results suggest that surfactant addition enhances dispersion, while mechanical properties of the composites for up to 5 vol. % of added nickel remain close to that of the polymer matrix without filler.

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Dielectric and magnetic properties of polyvinylidene ...

Magnetic hysteresis loops of the composites were dependent on the spinning speed because the spin regulated the dispersion and size distribution of Ni particles in the PVDF matrix. Owing to the Ni agglomeration, the composites prepared by 750, 1500 and 2250 rpm spinning clearly displayed soft ferromagnetic properties but the capacitance was ...

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Polymer–spinel ferrite composite containing nickel ...

The basic idea in a composite is to collect [2] The magnetic properties with the conductive ones lead to pro-ducing new materials such as conductive polymers with a magnetic behavior, or magnetic particles having a conductive polymer.[3] Also, these materials have potential applications such as microwave absorption, batteries, electrochemical dis-

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Preparation and magnetic properties of polymer magnetic ...

Preparation and magnetic properties of polymer magnetic composites based on acrylate resin filled with nickel plating graphite nanosheets Article in Applied Surface Science 258(2):732-737 ...

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Magnetic and Dynamic Mechanical Properties of Nd-Fe-B ...

Besides their high values of the remanence and coercivity, as well as relatively high Curie temperatures (app 312º C) (Sagawa et al., 1984) this type of magnetic alloys are identified suitable for research and further development of magnetic composite materials with polymer matrix, so called bonded magnets (Brown et al., 2006; Ma et al., 2002 ...

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Effect of Nickel–Cobalt–Zinc Ferrite Filler on Magnetic ...

Magnetic polymer composites were prepared from the ferrite and TPNR matrix using the same melt blending method at 135°C with mixing rate of 50 r.p.m. for 12 min. The fillers were varied from 5 to 30 weight percent. A uniform dispersion of the filler in the matrix …

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Fabrication of polydimethylsiloxane composites with nickel ...

PDMS–nickel composites, cuts of sample thickness 30 m were monitored by means of an optical microscope. Five samples for each composite material were tested. The micrographs were obtained by CCD camera. 2.4. Magnetic properties tests The magnetic properties of the pure nickel fillers and the PDMS–nickel composites were carried out at room

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Polymer–spinel ferrite composite containing nickel ...

Polymer nano ferrites composites were also characterized using XRD, FT‐IR, thermal analysis (TG and DTA), and transmission electron microscope (TEM). Also, electrical (AC conductivity, dielectric constant, dielectric loss, and complex impedance) and magnetic properties were investigated for all nano composite samples.

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Improvement of Dielectric, Magnetic and Thermal Properties ...

The dielectric and magnetic behaviour and thermal properties of composites based on nickel–zinc ferrite (NZF) filler can be improved by the addition of various types of materials. Amongst others, ferrite–polymer composites have been subjected to a wide range of research, due to their extensive applications: electromagnetic interference ...

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Structure-magnetic property correlations in nickel-polymer ...

Composites synthesized from particle-loaded polymers are easier to process to the required geometries and are hence more attractive [17]. Several extensive studies have been reported on magnetic metal-polymer composites, particularly focusing on the iron-polymer and NiFe-poly-mer systems [18–20]. With large microsized particles,

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Magnetic Properties of Nanostructured Cobalt and Nickel ...

particles are magnetic in polymer matrix, then such show enhance magnetic and transport organic conductor. Magnetic materials based on cobalt oxide and nickel oxide has attracted a great interest in view of their technological and fundamental scientific importance. We present here the preparation of Co 3 O 4 and NiO nanoparticles

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External Magnetic Field Induced Percolation in ...

Jul 29, 2010· The dielectric properties of polyvinylidene fluoride (PVDF) and nickel (Ni) composites annealed under external magnetic fields were studied here. It was found that a similar percolation effect could be induced by an external longitudinal magnetic field in low filler PVDF/Ni composites. The permittivity of PVDF/Ni (95/5) composites showed a 4 times improvement at low frequency, and the ...

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(PDF) Magnetic and dielectric properties of nickel-ferrite ...

Magnetic and dielectric properties of nickel-ferrite-embedded natural rubber composites Article (PDF Available) in Polymer Bulletin · March 2018 with 341 Reads How we measure 'reads'

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Preparation of nickel doped multi-functional micro ...

superior mechanical properties as compared to undoped polydimethylsiloxane. The insulator–conductor transition for the nickel-polydimethylsiloxane composite occurs at 40 wt.%. Keywords: Polydimethylsiloxane, Nanocomposite, Young's Modulus, MEMS, Deep UV LIGA, conductive polymer, magnetic polymer. 1 INRODUCTION . Micro total analysis systems ...

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Template-Assisted Synthesis and Characterization of ...

Nickel nanoparticles embedded in a polymer matrix are important not only from a commercial point of view but also from a fundamental perspective. They are ideal templates for studying the size effects on the magnetic properties. The optical properties of these particles at the nanolevel also assume significance. The interaction between metal nano-

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A study on EMI shielding enhancement behaviors of Ni ...

Sep 01, 2017· However, few studies, to our knowledge, have focused on the effects of different metal platings and different deposition techniques on the EMI shielding effectiveness of metal- plated carbon fiber-reinforced polymer matrix composites. Electroless nickel is a suitable method where a metallic film is plated on the surface of carbon fiber to ...

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Magnetoelectric properties of nickel nanowires-P(VDF–TrFE ...

Mar 01, 2015· Multiferroic composites with very high magnetoelectric coupling composites have been elaborated by incorporating high aspect ratio magnetic nickel particles in a ferroelectric matrix P(VDF–TrFE). Nickel nanowires (NWs) were elaborated by the electrodeposition method which allows obtaining a constant aspect ratio of 250.

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Template-Assisted Synthesis and Characterization of ...

Nickel nanoparticles embedded in a polymer matrix are important not only from a commercial point of view but also from a fundamental perspective. They are ideal templates for studying the size effects on the magnetic properties. The optical properties of these particles at …

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Magnetic properties of nickel filament polymer-matrix ...

Jun 01, 1996· The magnetic properties of polyethersulfone-matrix composites with 3-19 vol.% polycrystalline nickel filaments (0.4 (im diam) were investigated. These filaments were found to exhibit hysteresis energy loss 10800 J/m3 of nickel and coercive force 16.9 kA/m, compared to corresponding values of 4930 J/m3 and 4.7 kA/m for 2 μ.m diam polycrystalline nickel fibers, 1020 J/m3 and 0.5 …

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Polymer–spinel ferrite composite containing nickel ...

Dec 30, 2018· 1 INTRODUCTION. Polymer nano composites with electrical properties, incorporated with inorganic magnetic oxides, have attracted obvious interest as of their potential applications for combining properties that are difficult to attain separately with the individual components. 1 The basic idea in a composite is to collect several materials and their properties in a single one. 2 The magnetic ...

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Magnetic Composite - an overview | ScienceDirect Topics

Magnetic composite materials constitute a new generation of multifunctional materials that combine the properties of conventional polymers and magnetic materials (ferri, and/or ferromagnetic particles mixed or embedded in a matrix) are classified as 'magneto-polymeric materials.'

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Magnetic properties of nickel filament polymer-matrix ...

Other studies have looked at the magnetic properties of polymer matrix composites, including those with Ni [46], ferrite [47,48], and Nd-Fe-B [49] as functional materials. However, these did not ...

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Magnetic properties of nickel filament polymer-matrix ...

Jun 01, 1996· The magnetic properties of polyethersulfone-matrix composites with 3-19 vol.% polycrystalline nickel filaments (0.4 (im diam) were investigated. These filaments were found to exhibit hysteresis energy loss 10800 J/m 3 of nickel and coercive force 16.9 kA/m, compared to corresponding values of 4930 J/m 3 and 4.7 kA/m for 2 μ.m diam polycrystalline nickel fibers, 1020 …

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[PDF] Magnetic induction of polymer composites filled with ...

Corpus ID: 135652982. Magnetic induction of polymer composites filled with ferrite powders @inproceedings{Stabik2010MagneticIO, title={Magnetic induction of polymer composites filled with ferrite powders}, author={J{'o}zef Stabik and Agnieszka D Dybowska and J. Pluszyński and Miroslaw Szczepanik and Ł.

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Multifunctional magneto-polymer matrix composites for ...

New powder metallurgy techniques now make it possible to produce micron- and nano-scale magnetic particles. Mixing these particulate fillers with a binder or incorporating them into the polymer matrix of a fiber-reinforced composite are being used to produce SMCs with superior magnetic properties.

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On the magnetic and dielectric properties of nickel ...

May 15, 2010· 1. Introduction. The physical properties of polymer materials can be modified by incorporating different types of fillers in the matrix and the resulting composites are suitable for various technological applications,,, .The electrical and magnetic properties of the polymeric host can be improved considerably by impregnating magnetic fillers into the matrix, .

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Alignment of Nickel Coated Carbon Fibers by Magnetic Field ...

Coating of short carbon fibers with nickel not only preserves the desired specific mechanical properties of both the fiber and the resulting composite but also improves their electrical conductivity and magnetic properties. The short fibers may be randomly dispersed in composites to exhibit isotropic behavior.

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