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Thermal stability of electrical and magnetic properties of a nanocrystalline Hf-Ni alloy

机译:纳米晶Hf-Ni合金的电磁性能的热稳定性

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摘要

The thermal stability of a nanocrystalline (NC) Hf_(11)Ni_(89) alloy was studied using X-ray diffraction, transmission electron microscopy, resistivity measurements and magnetothermal analysis. Microstructure and composition evolution in the grain boundaries and nanograins prior to evident grain growth was detected, and it was shown that this evolution may have a significant influence on the electrical resistivity and magnetic properties of the sample. Our findings demonstrated that the thermal stability of properties of NC materials is not necessarily equivalent to the grain-size stability of the same materials.
机译:使用X射线衍射,透射电子显微镜,电阻率测量和磁热分析研究了纳米晶(NC)Hf_(11)Ni_(89)合金的热稳定性。在明显的晶粒长大之前,在晶粒边界和纳米晶粒中观察到了微观结构和成分的演变,结果表明,这种演变可能会对样品的电阻率和磁性能产生重大影响。我们的发现表明,NC材料性能的热稳定性不一定等同于相同材料的晶粒尺寸稳定性。

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