Interface diffusion and amorphous intergranular layers in nanocrystalline Fe90Zr7B3
Interface diffusion and amorphous intergranular layers in nanocrystalline Fe90Zr7B3
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纳米晶 Fe90Zr7B3 中的界面扩散和非晶晶间层
DOI：
10.1063/1.1697614
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发表时间：
2004
影响因子：
3.2
通讯作者：
R. Würschum
中科院分区：
文献类型：
--
作者：
S. Herth;Martin Eggersmann;P. Eversheim;R. Würschum
研究了铁示踪剂在软磁纳米晶Fe_（90）Zr_（7B_3）中的扩散，没有孔隙率、弛豫或晶粒生长的任何影响。由于存在晶间非晶相，界面扩散特性与金属中的晶界有很大不同。与初始非晶相相比，在薄非晶层中降低的扩散率表明限制的效果。第二，快速的界面扩散路径的指示，发现和定量分析的框架内的两个接口类型的模型。
Iron tracer diffusion was studied in soft-magnetic nanocrystalline Fe90Zr7B3 without any influence of porosity, relaxation, or grain growth. The interfacial diffusion characteristics differ substantially from grain boundaries in metals due to the presence of an intergranular amorphous phase. The reduced diffusivity in thin amorphous layers compared to in the initial amorphous phase indicates the effect of confinement. The indication of a second, fast interfacial diffusion path is found and quantitatively analyzed within the framework of a two interface-type model.