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Structure and Magnetic Properties of Fe(Mn)-Si-B-Nb-Cu Alloys

机译:Fe(Mn)-Si-B-Nb-Cu合金的结构和磁性

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According to high energy X-ray diffraction measurements no significant changes were observed in a short range atomic order of amorphous ribbons Fe_(73.5-x)Mn_xCu_1Nb_3Si_(13.5)B_9 (x = 1 up to 15 at.%). Thermal stability of the as-prepared alloys was investigated by differential scanning calorimetry and by in situ X-ray diffraction measurements. The two-step crystallization process was revealed, crystallization temperatures T_(x1) and T_(x2) were influenced by Mn content (thermal separation between T_(x1) and T_(x2) completely vanished for x = 9). Nanocrystalline state of annealed samples was confirmed by electron transmission microscopy. The influence of Mn substitution on magnetic properties was confirmed by thermomagnetic measurements.
机译:根据高能X射线衍射测量,在非晶带Fe_(73.5-x)Mn_xCu_1Nb_3Si_(13.5)B_9的短程原子顺序中未观察到显着变化(x = 1,最高15 at。%)。通过差示扫描量热法和通过原位X射线衍射测量研究了所制备合金的热稳定性。揭示了两步结晶过程,结晶温度T_(x1)和T_(x2)受Mn含量的影响(对于x = 9,T_(x1)和T_(x2)之间的热分离完全消失了)。通过电子透射显微镜确认了退火样品的纳米晶态。通过热磁测量证实了Mn取代对磁性能的影响。

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