Characterization of highly dispersed bimetallic NiCu alloy particles by ferromagnetic resonance

Mörke, Wolfgang; Bieruta, Tomasz; Jarsetz, Jens; Görsmann, Claus; Schubert, Ulrich

doi:10.1016/0927-7757(96)03658-8

Cited by 10 publications

(6 citation statements)

References 18 publications

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“…There are several methods for the preparation of bimetallic and alloyed Cu-Ni particles. Morke et al [7] synthesized the nominal compositions Ni 0.4 Cu 0.6 ·nSiO 2 (n = 3, 6,9,12,15,20) and characterized them by ferromagnetic resonance (FMR). Reduction of a mixture of nickel and copper compounds under hydrogen has been used to prepare Cu-Ni alloys [8].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Cu–Ni alloy nanocrystallites in water-in-oil microemulsions

Feng

Zhang

2006

Journal of Colloid and Interface Science

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Section: Introductionmentioning

confidence: 99%

Preparation of Cu–Ni alloy nanocrystallites in water-in-oil microemulsions

Feng

Zhang

2006

Journal of Colloid and Interface Science

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“…CuNi alloys containing about 40wt.% Ni possess a low temperature coefficient of resistivity [1] and they are commonly used for resistive applications [2]. Literature perusal reveals diverse physical and chemical methods of synthesis, such as plasmachemical re-condensation [3], mechanical milling [4,5], diol-and polyol reduction methods [6,7], hydrothermal reduction [8][9][10], sol-gel process [11,12], electrochemical methods [13][14][15][16], metal atom-solvent co-condensation [17], microemulsion technique [18][19][20], reduction of precipitated copper and nickel compounds [21,22], combustion reactions [23,24], etc. for the preparation of CuNi bimetallic and alloy nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Composition-dependent sintering behaviour of chemically synthesised CuNi nanoparticles and their application in aerosol printing for preparation of conductive microstructures

et al. 2012

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Copper, nickel and copper-nickel nanoparticles were prepared by solution combustion method for use in direct write printing. Structural (X-ray diffraction) and morphological (transmission electron microscope) investigations showed that pure metal (Cu and Ni) and CuNi alloy particles with face-centred cubic crystal structure were formed. Atomic absorption spectrometer studies confirmed that the nanoparticle compositions corresponded to the initial Cu/Ni molar ratios selected for synthesis. Particle size and morphology were significantly influenced by composition, with high Cu content coinciding with small, spherical particles as opposed to larger, irregular shapes observed at high Ni concentrations. X-ray photoelectron spectroscopy measurements revealed that after the reduction process the surface of the alloy nanoparticles was partially oxidised in air and the amount of metallic surface species decreased, while the concentration of oxidic surface species and hydroxides increased with increasing Cu concentration (i.e. decreasing particle size). Dispersions of CuNi nanoparticles have been deposited by use of AerosolJet® and sintered under reducing atmosphere at 300-800 °C in order to prepare conductive structures. Resistivity measurements and microscopical studies (SEM-FIB) of printed and sintered CuNi structures showed that the sintering properties of nanoparticles were dependent on their chemical composition

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“…In the recent years, Ni-Cu alloy nanoparticles have been proposed as mediator for magnetic fluid hyperthermia [4][5][6]. Several methods have been reported for the preparation of Ni-Cu nanoparticles including sol-gel [7], reduction of mixture of Ni and Cu compounds under hydrogen [8], evaporation of Ni-Cu alloy and cocondensation with organic solvents [9], water-in-oil microemulsion [10], solvothermal [11], and hydrothermal [12].…”

Section: Introductionmentioning

confidence: 99%

Mild Hydrothermal Synthesis of Ni–Cu Nanoparticles

Saeed

Radiman

Gasaymeh

et al. 2010

Journal of Nanomaterials

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Magnetic Ni-rich Ni–Cu nanoparticles with Ni : Cu mass ratio (S) of 2.0 and 2.6 were prepared using a mixture of polyoxyethylene (10) isooctylphenyl ether (Triton X-100) and sodium dodecyl sulfate (SDS) in a mild hydrothermal condition at 95ºC. X-ray diffractometry (XRD) showed that the nanoparticles prepared atS=2.0possessed Ni–Cu alloy characteristic whereas the characteristic was absent atS=2.6. The XRD data was enhanced by Fourier transform infrared spectroscopy (FTIR) which exhibited metal-metal (Ni–Cu) band at 455 cm−1. Based on transmission electron microscopy (TEM), the average particle sizes for the nanoparticles prepared atS=2.0and 2.6 were in the range of 19–23 nm. The as-prepared nanoparticles exhibited paramagnetic behaviour measured using a vibrating sample magnetometer (VSM) and the specific saturation magnetization decreased at the higher concentration of Ni.

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Characterization of highly dispersed bimetallic NiCu alloy particles by ferromagnetic resonance

Cited by 10 publications

References 18 publications

Preparation of Cu–Ni alloy nanocrystallites in water-in-oil microemulsions

Preparation of Cu–Ni alloy nanocrystallites in water-in-oil microemulsions

Composition-dependent sintering behaviour of chemically synthesised CuNi nanoparticles and their application in aerosol printing for preparation of conductive microstructures

Mild Hydrothermal Synthesis of Ni–Cu Nanoparticles

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