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A Comparative Study of Saturation Induction with Current Density of Electrodeposited Fe-Ni-W alloys

机译:电沉积Fe-Ni-W合金的饱和感应强度与电流密度的比较研究

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Fe-Ni-W alloys are electroplated from an ammonical citrate bath by applying three different current density values of 28, 56, and 84 mA/cm~2. The morphology and structure of Fe-Ni-W alloys are detected by Scanning Electron Microscope (SEM) and X-ray diffraction (XRD), respectively. The deposits are smooth and well adhered to the substrate at a current density of 28 mA/cm~2, while at current density values of 56 mA/cm2 and 84 mA/cm~2 deposits were smooth but showed cracks in the layer. All the as-plated deposits have nano crystalline structures and have two phases of WO_3 and BCC structured solid solution of Ni and W in Fe. The BCC structure is the dominant microstructure at high current density. The constituents in the films are determined by Energy Dispersive X-ray spectroscopy (EDX) technique. The magnetic saturation induction of the plated deposits is studied with the help of a Vibrating Sample Magnetometer (VSM).
机译:通过施加28、56和84 mA / cm〜2的三个不同电流密度值,从柠檬酸铵浴中电镀Fe-Ni-W合金。 Fe-Ni-W合金的形貌和结构分别通过扫描电子显微镜(SEM)和X射线衍射(XRD)进行检测。沉积物是光滑的,并且在28 mA / cm〜2的电流密度下能很好地粘附到基板上,而在电流密度值为56 mA / cm2和84 mA / cm〜2时,沉积物是光滑的,但在层中显示出裂纹。所有的镀层沉积物均具有纳米晶体结构,并具有WO_3和BCC结构的Ni和W在Fe中的固溶体两相。在高电流密度下,BCC结构是主要的微观结构。薄膜中的成分通过能量色散X射线光谱(EDX)技术确定。借助振动样品磁力计(VSM)研究了镀层沉积物的磁饱和感应。

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    Institut fuer Mikropoduktionstechnik, Leibniz Universitaet Hannover, An der Universitaet 2, 30823 Garbsen, Germany;

    Institut fuer Mikropoduktionstechnik, Leibniz Universitaet Hannover, An der Universitaet 2, 30823 Garbsen, Germany;

    Institut fuer Mikropoduktionstechnik, Leibniz Universitaet Hannover, An der Universitaet 2, 30823 Garbsen, Germany;

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