Controlled synthesis of magnetic Ni–Fe alloy with various morphologies by hydrothermal approach

Sun, Youyi; Liang, Qing; Zhang, Yongji; Tian, Ye; Liu, Yaqing; Li, Faxing; Fang, Daining

doi:10.1016/j.jmmm.2012.11.043

Cited by 18 publications

(2 citation statements)

References 21 publications

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“…Due to the excellent electronic and magnetic properties of the Ag NWs [35–37] and MNs (Ni-Fe) [38, 39] respectively, this paper proposes the design and measurement of flexible AgNWs & MNs-PDMS magnetic field sensors with sandwich structure based on magnetostrictive and piezoresistive effects. MNs were introduced as magnetic field-sensitive units in AgNWs-based piezoresistive strain sensor.…”

Section: Introductionmentioning

confidence: 99%

A Flexible Magnetic Field Sensor Based on AgNWs & MNs-PDMS

Zhang

Sun

et al. 2019

Nanoscale Res Lett

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This paper presents a new flexible magnetic field sensor based on Ag nanowires and magnetic nanoparticles doped in polydimethylsiloxane (AgNWs & MNs-PDMS) with sandwich structure. The MNs act as the sensitive unit for magnetic field sensing in this work. Besides, the conductive networks are made by AgNWs during deformation. Magnetostriction leads to the resistance change of the AgNWs & MNs-PDMS sensors. Furthermore, the MNs increase the conductive paths for electrons, leading to lower initial resistance and higher sensitivity of the resulting sensor during deformation. A point worth emphasizing is that the interaction of the AgNWs and MNs plays irreplaceable role in magnetic field sensing, so the resistance change during stretching and shrinking was investigated. The flexible magnetic field sensor based on the mass ratio of MNs and AgNWs is 1:5 showed the highest sensitivity of 24.14 Ω/T in magnetic field sensing experiment. Finally, the magnetostrictive and piezoresistive sensing model were established to explore the mechanism of the sensor.

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Section: Introductionmentioning

confidence: 99%

A Flexible Magnetic Field Sensor Based on AgNWs & MNs-PDMS

Zhang

Sun

et al. 2019

Nanoscale Res Lett

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“…Therefore, many studies have focused on the surface of silicon carbide particles wrapped metal as a transition layer, to improve the interfacial bonding and dispersion uniformity of metal matrix and silicon carbide, so as to improve the service performance of composite materials [4,5]. On the surface of SiC wrapped Ni as a transition layer is an effective measure to improve the interface bonding of SiC/Fe composite, on the one hand, elemental Ni and SiC particles have a good interface compatibility, on the other hand Ni and Fe can form the Ni-Fe alloy phase in the forming process of preparing composite materials [5,6]. Up to now, the method to prepared Ni uniformly coated SiC is still difficult, and its main preparation methods are as follows: chemical vapor deposition, physical vapor deposition, electrodeposition [7][8][9][10], electroless plating [11,12], etc.…”

Section: Introductionmentioning

confidence: 99%

Effect of Ni Coated SiC on Mechanical Properties of SiC/Fe Composites

Wang

Fan

et al. 2014

KEM

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A facile onestep in situ chemical deposition method was introduced to synthesize Ni coated SiC composite powders, which used NiCl2·6H2O as nickel source and N2H4·H2O as reductant, respectively. SiC(Ni)/Fe composites were prepared by current-vacuum hot-pressed sintering at 850°C, 40MPa for 30min. Scanning electronic microscope (SEM) and X-ray diffraction (XRD) were used to characterize the structure, morphology and composition of the prepared Ni/SiC core/shell composite powders. It is found that the Ni coated SiC is favorable to improve the dispersion and compatibility of SiC(Ni)/ Fe composites. By a series of contrast experiments, it is shown that the sintering sample with 5wt% of SiC(Ni) has the best mechanical properties. The relative density, Vickers hardness and bending strength is 91.67%, 4.72GPa and 508MPa, respectively.

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