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首页> 外文会议>Researches in Powder Metallurgy >The Influence of Processing Parameters on the Magnetic Properties of the Nanocrystalline Soft Magnetic Composites Based on Ni_3Fe
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The Influence of Processing Parameters on the Magnetic Properties of the Nanocrystalline Soft Magnetic Composites Based on Ni_3Fe

机译：工艺参数对Ni_3Fe基纳米晶软磁复合材料磁性能的影响

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The nanocrystalline Ni_3Fe powders were obtained via wet mechanical alloying route in argon atmosphere. As process control agent (PCA) the benzene (C_6H_6) was used. In order to release the internal stresses an annealing at 350 C for 4 hours was performed. Alternatively, the nanocrystalline Ni_3Fe powder was subjected to a process of incipient recrystallization at 600 C for 30 minutes in vacuum. The recrystallised powders have a crystallite size of 30 nm. The magnetic properties (the frequencies dependence of permeability and magnetic losses) were investigated in AC field of 0.05, 0.1 and 0.2 T. It was found that the polymerization process has a strong influence over the magnetic properties of compacts. If the polymerization was performed by heating the powders into a mould, generally we observed a positive influence over the permeability but a negative influence over the magnetic losses.
机译：通过在氩气氛中通过湿式机械合金化途径获得了纳米晶Ni_3Fe粉末。苯（C_6H_6）用作过程控制剂（PCA）。为了释放内部应力，在350℃下进行了4小时的退火。或者，将纳米晶Ni_3Fe粉末在真空中于600℃进行初始重结晶过程30分钟。重结晶的粉末具有30nm的微晶尺寸。在0.05、0.1和0.2 T的交流场中研究了磁性能（磁导率与磁损耗的频率相关性）。发现聚合过程对压坯的磁性能有很大影响。如果通过将粉末加热到模具中进行聚合，通常我们会发现对磁导率有积极影响，但对磁损耗有消极影响。

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