Investigation of Strain Sensing Properties of Polyester ,, The aim of this work is to investigate the strain sensing properties of polyester/magnetite composite materials of different contents 5, 10, 15, 20% w/w Specifically, we manufactured magnetic composite materials with a polyester matrix (thermosetting polymer) and nanoparticles of magnetite (Fe3O4) as additives, processed by molding techniqueProperties of Ferrite, May 22, 2007· Nickel zinc ferrite (Ni-ZnFe 2 O 4)-filled natural rubber (NR) composite was prepared at various loading of ferriteThe tensile properties included in this study were tensile strength, tensile modulus and elongation at break The tensile strength and elongation at break of the composites increased up to 40 parts per hundred rubber (phr) of ferrite and then decreased at higher loading ,Composites, Composit A composite is commonly defined as a combination of two or more distinct materials, each of which retains its own distinctive properties, to create a new material with properties that cannot be achieved by any of the components acting aloneNickel filament polymer, The processing of nickel filaments of 04 Μm diameter gives polyethersulfone-matrix composites with high electromagnetic interference shielding effectiveness, high reflection coefficient and low surface impedance at 1-2 GHz With 7 vol% nickel filaments, the composite exhibited shielding effectiveness 87 dB (compared to 90 dB for solid copper), surface impedance 12 Ω (same as for solid ,Microwave, Jan 15, 2021· The glass fabric was coated by an electroless nickel plating technique and any dielectric and magnetic lossy materials were not dispersed in polymer matrix Thus, the proposed honeycomb core did not exhibit the various limitations associated with the dispersion of conductive particles and MMPs in the polymer material.
Magnetic properties of nickel filament polymer, Jun 01, 1996· The magnetic properties of polyethersulfone-matrix composites with 3-19 vol% polycrystalline nickel filaments (04 (im diam) were investigated These filaments were found to exhibit hysteresis energy loss 10800 J/m3 of nickel and coercive force 169 kA/m, compared to corresponding values of 4930 J/m3 and 47 kA/m for 2 μm diam polycrystalline nickel fibers, 1020 J/m3 and 05 ,Magnetic Properties of Irradiated Nickel Ferrite ,, The effect of electron beam (EB) irradiation at different doses on the magnetic, microstructure, morphological and thermal properties of NiFe2O4/Thermoplastic Natural Rubber (TPNR) nanocomposite was investigated The NiFe2O4/TPNR nanocomposite samples were prepared by using a Haake mixer in weight ratio of 12:88 The TPNR matrix consists of natural rubber (NR), liquid natural rubber (LNR) ,Synthesis and Magnetic Properties of Polymer Derived Metal ,, Metal particles were embedded in a silicon carbonitride (SiCN) matrix, derived from the commercially available polysilazane Ceraset® Metal powders, such as Fe, Mn, Co, Ni, were mixed and milled with pre-cross-linked polysilazane and subsequent pyrolysis The metals act as active fillers to increase the density of composite The phases and microstructures of metal/ceramic composites were ,On the magnetic and dielectric properties of nickel ,, Abstract Nickel nanocomposites were prepared by incorporating nickel nanoparticles in a neoprene matrix according to a specific recipe for various loadings of nickel particl The dielectric properties of these composites were evaluated for different frequencies ranging from 100 kHz to 8 MHz at different temperatures from 30 °C to 120 °CMagnetic properties of nickel filament polymer, Jun 01, 1996· The magnetic properties of polyethersulfone-matrix composites with 3-19 vol% polycrystalline nickel filaments (04 (im diam) were investigated These filaments were found to exhibit hysteresis energy loss 10800 J/m 3 of nickel and coercive force 169 kA/m, compared to corresponding values of 4930 J/m 3 and 47 kA/m for 2 μm diam polycrystalline nickel fibers, 1020 ,.
Polymer Composites with Oriented Magnetic Nanowires ,, 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 ,Synthesis and magnetic properties of nickel nanocrystals ,, In the present investigation, pristine nickel oxide (NiO) and cobalt oxide (Co 3 O 4) nanoparticles have been synthesised by well pronounced sol-gel auto combustion routeA series of Co 3 O 4-NiO nanocomposite with varying NiO concentration from 10% to 40% by weight to Co 3 O 4, has been synthesised using sonochemical routeA qualitative study of structural, optical and magnetic properties ,Magnetic memory effects in nickel ferrite/polymer ,, Magnetic memory effects in nickel ferrite/polymer nanocomposites , and magnetic properties of hard and soft mixed ferrite composites , due to the dispersion of particles in the polymer matrixHigh, Jun 27, 2006· The large ferrite particles in the composite not only act as the magnetic phase but also present as a high volume fraction discrete (nonpercolating) phase, confining polymer and metallic particles into a continuous double-percolating structure of low volume fractionMagnetic and transport properties of conducting ,, and magnetic properties of nanomaterials to be incorporated into polymer matrix, transition metal oxide nanoparticles are of particular interest Nickel (II) oxide is a notable and well-studied ,.
Magnetic properties of nickel filament polymer, The magnetic properties of polyethersulfone-matrix composites with 3-19 vol% polycrystalline nickel filaments (04 (im diam) were investigated These filaments were found to exhibit hysteresis energy loss 10800 J/m3 of nickel and coercive force 169 kA/m, compared to corresponding values of 4930 J/m3 and 47 kA/m for 2 μm diam polycrystalline nickel fibers, 1020 J/m3 and 05 kA/m for 20 μm ,Electrospun Magnetic Fibrillar Polystyrene Nanocomposites ,, The nanoparticles still exhibit superparamagnetic properties even after dispersing in the polymer matrix, different from the reported enhanced coercivity as a result of the enlarged particle distance However, the magnetic field required to saturate the magnetization is significantly reducedMagnetic 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 nanoparticlesThis new composite material can absorb electromagnetic ,, May 22, 2019· The rising level of electromagnetic radiation emitted by communication devices and electronic instruments is becoming a cause of concern An effective shielding material having suitable electrical and magnetic properties can help reduce the problem of Electromagnetic Interference (EMI) as it can reflect or absorb the energy of such radiationCritical bending and magnetic shape memory effect in ,, temperature, on the magnetic shape memory effect was studied Keywords: smart materials, polymer-matrix composites, magnetic shape memory polymers, critical bending magnetoactive elastomers, magneto-rheological effect, specific powerloss 1 Introduction Magnetoactive elastomers (MAEs) or ,.
Tailored Magnetic and Magnetoelectric Responses of Polymer ,, The manipulation of electric ordering with applied magnetic fields has been realized on magnetoelectric (ME) materials; however, their ME switching is often accompanied by significant hysteresis and coercivity that represents for some applications a severe weakness To overcome this obstacle, this work focuses on the development of a new type of ME polymer nanocomposites that exhibits a ,Reinforced, Extruded, Isotropic Magnetic Elastomer ,, The study involves the development of isotropic magnetorheological elastomer composites (i-MREs) with improved mechanical properties, their preparations, and properties characterizations The novelty of the research is the use of extrusion process in the preparation of composites containing two different fillers: carbonyl iron powder (CIP) as magnetic filler and carbon black (FEF, N550) as ,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 properti The short fibers may be randomly dispersed in composites to exhibit isotropic behaviorTransparency Enhancement for Photoinitiated Polymerization ,, We use a magnetic field to align nickel particles into stringlike assemblies in urethane oligomer mixtures and create a semitransparent UV-curable nickel particle/polymer composite with anisotropic electrical conductivity and piezoresistive properti When the particles are uniformly distributed in the oligourethane matrix, the mixture is moderately conductive at higher particle fractions but ,Electrospun Magnetic Fibrillar Polystyrene Nanocomposites ,, Jul 21, 2010· The nanoparticles still exhibit superparamagnetic properties even after dispersing in the polymer matrix, different from the reported enhanced coercivity as a result of the enlarged particle distance However, the magnetic field required to saturate the magnetization is significantly reduced.
"Synthesis and Magnetic Properties of Polymer ,, Magnetic nanoparticles embedded in polymer matrices have excellent potential for electromagnetic device applications like electromagnetic interference (EMI) suppression Using chemical precipitation methods and Nanogen , a microwave plasma method, we have synthesized various nanoparticles including iron, polystyrene-coated iron, iron oxide (both hematite and magnetite), nickel ferrite, and ,Magnetic properties of nickel filament polymer, Other studies have looked at the magnetic properties of polymer matrix composites, including those with Ni , ferrite [47,48], and Nd-Fe-B  as functional materials However, these did not ,Theoretical method for calculation of effective properties ,, [1-4], the composite is homogeneous, one speaks of the averaged homogeneity Effective coefficients describe physical properties of such a composite material Theoretical description of the effective properties of composites with macroscopic inclusions boils down to the calculation of effective coefficients, eg magnetic permeability