A new preparation method of Fe2B: Generating rodlike/scale-like Fe2B by dealloying Fe78Si9B13 atomized particle
A new preparation method of Fe2B: Generating rodlike/scale-like Fe2B by dealloying Fe78Si9B13 atomized particle
复制标题
Fe2B制备新方法：Fe78Si9B13雾化颗粒脱合金生成棒状/鳞片状Fe2B
DOI：
10.1016/j.intermet.2017.12.027
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发表时间：
2018-03-01
期刊：
影响因子：
4.4
通讯作者：
Fan, Runhua
中科院分区：
文献类型：
--
作者：
Liu, Shuai;Bian, Xiufang;Fan, Runhua
目前正在研究化学脱合金以产生适用于电池、催化剂、传感器和其他电化学应用的纳米多孔结构。此外，由于从大体积铸铁中提取Fe_2B或研究制备Fe_2B样品的有效方法非常困难，因此对Fe_2B的机械性能或稳定性的实验值有限。本文采用Fe_（78）Si_（99）B_（13）雾化颗粒脱合金的方法制备了棒状/鳞片状Fe_2B，在脱合金过程中，Fe和FeSi相被腐蚀掉，留下Fe_2B相。Fe 2B的形貌可以从棒状控制到鳞片状，扩大了铁硼化物在零部件表面的应用领域。研究了Fe_（78）Si_（19）B_（13）合金在化学脱合金过程中的磁性能（饱和磁化强度、剩磁和矫顽力）的变化。
Chemical dealloying is currently studied to produce nanoporous structure suited for use in battery, catalysis, sensors and other electrochemical applications. Moreover, experimental values on mechanical properties or stability of the Fe2B are limited since it is very difficult to extract Fe2B from bulk casting irons or to investigate an effective method to prepare Fe2B sample. Here, we have prepared rodlike/scale-like Fe2B by dealloying Fe78Si9B13 atomized particle during which the Fe and FeSi phases are etched away, leaving Fe2B phase. The morphology of Fe2B can be controlled from rod-like to scale-like, amplifying the applied fields of iron borides on the surface of parts and components. The magnetic property (saturation magnetization, remanence and coercivity) evolution of Fe78Si9B13 during chemical dealloying is also investigated.