Abstract The synthesis of elevated-temperature intermetallic powders was carried out using a novel solid–liquid reaction milling technique. As opposed to the conventional mechanical milling, the direct formation of nanometer-sized elevated-temperature intermetallic powders such as Fe 1.3 Sn and Fe 3 Sn 2 , at relatively low temperatures and an enhanced solid solubility extension of iron in lead were
摘要 高温金属间化合物粉末的合成是使用一种新的固液反应研磨技术进行的。与传统的机械研磨相反,实现了在相对较低的温度下直接形成纳米尺寸的高温金属间化合物粉末,如 Fe 1.3 Sn 和 Fe 3 Sn 2 ,并提高了铁在铅中的固溶度扩展。
Structural and magnetic properties of hexagonal Fe3Sn prepared by non-equilibrium techniques
and magnetic study of Fe 3 Sn produced either by solid state reaction or by mechanical alloying in order to figure out which of the two techniques is most suitable for obtaining the purest Fe 3 Sn alloy. Solid state reaction of Fe and Sn starting powders results in a pure sample (100%) of Fe 3 Sn. The extraordinary purity and crystallinity have been confirmed by in-lab XRD and Mossbauer spectroscopy
摘要 我们报告了对通过固态反应或机械合金化生产的 Fe 3 Sn 进行的彻底结构和磁性研究,以确定这两种技术中的哪一种最适合获得最纯的 Fe 3 Sn 合金。Fe和Sn起始粉末的固态反应产生Fe 3 Sn的纯样品(100%)。实验室内 XRD 和穆斯堡尔光谱证实了非凡的纯度和结晶度。本研究已通过磁测量 M(H) 和 M(T) 完成;已获得 122 A m 2 /kg 的饱和磁化强度和居里温度 T c = 475 °C。
Equations of state of several iron–tin intermetallic compounds
作者:Hubertus Giefers、Malcolm Nicol
DOI:10.1016/j.jpcs.2006.05.056
日期:2006.9
An angle-dispersive X-ray diffraction study was performed on the Fe-Sn intermetallic compounds FeSn2, FeSn, and Fe3Sn to a pressure of 25 GPa using nitrogen as a pressure-transmitting medium and gold as a pressure marker. The samples were prepared with phase purities of more than 97%. These intermetallics show no phase transition to the highest pressure achieved. Our data fitted to the Birch-Murnaghan equation of state yield: K-0 = 86(2) GPa for FeSn2, K-0 = 94(2) GPa for FeSn, and K-0 = 122(3) GPa for Fe3Sn. The c/a ratio increases with pressure for FeSn2 and Fe3Sn but decreases for FeSn. (c) 2006 Elsevier Ltd. All rights reserved.
High pressure X-ray diffraction study of all Fe–Sn intermetallic compounds and one Fe–Sn solid solution
作者:Hubertus Giefers、Malcolm Nicol
DOI:10.1016/j.jallcom.2005.11.061
日期:2006.9
The present study describes the preparation of all five Fe-Sn intermetallic compounds, FeSn2, FeSn, Fe3Sn2, Fe5Sn3, and Fe3Sn, and the results of the X-ray diffraction study under static high pressure up to 25 GPa using nitrogen as a pressure-transmitting medium. The samples were prepared with phase purities of 97% and higher. Four Fe-Sn intermetallics, FeSn2, FeSn, Fe5Sn3, and Fe3Sn, show no phase transition to the highest pressure achieved; Fe3Sn2 undergoes two transitions to 25 GPa. The bulk moduli of these materials decrease approximately linearly with increasing Sn content, with the exception of Fe3Sn2. We also studied the solubility of Sn in alpha-Fe (alpha-Fe1-x,Sn-x). Tin expands the alpha-Fe lattice according to Vegard's law to at least 6 at.% Sn. The solid solution alpha-Fe0.92Sn0.08 was examined beyond the pressure of the alpha/epsilon-phase transition. The onset of the phase transition in alpha-Fe0.92Sn0.08 occurs at about 24 GPa, higher than the transition pressure of 14 GPa in pure alpha-Fe, but at a similar lattice parameter, a approximate to 2.800 angstrom. (c) 2005 Elsevier B.V. All rights reserved.