首页> 外文会议>International Symposium on Metastable, Mechanically Alloyed and Nanocrystalline Materials(ISMANAM 2003); 20030824-20030828; Foz do Lguacu; BR >Crystallite Size and Strain Study of a Nanostructured Fe-Cu Alloy from Diffraction Profile Analysis
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Crystallite Size and Strain Study of a Nanostructured Fe-Cu Alloy from Diffraction Profile Analysis

机译:衍射轮廓分析法研究纳米结构Fe-Cu合金的微晶尺寸和应变

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摘要

The lattice parameters, crystallite size and strain of nanostructured Cu_(1-x)Fe_x (0< x <0.5) alloys prepared by the ball milling method were determined from X-ray powder diffraction analysis. All samples present the Cu fcc structure. The lattice parameters of the Cu_(1-x)Fe_x phases increase with x. Furthermore, they are significantly greater than the values predicted by Vegard's law. The X-ray diffraction peaks were analyzed using the Warren-Averbach and Integral Breadth methods. The crystallite size decreases and the strain increases with Fe concentration. A high degree of anisotropy was observed in both the apparent crystal size and strains. Possible inhomogeneities in the fcc phase cannot be discarded.
机译:通过X射线粉末衍射分析,确定了球磨法制备的纳米Cu_(1-x)Fe_x(0

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