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Influence of milling time on the structural, microstructural and magnetic properties of mechanically alloyed Ni58Fe12Zr10Hf10B10 nanostructured/amorphous powders |
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| Authors: | R Besmel M GhaffariH Shokrollahi B ChitsazanL Karimi |
| Institution: | a Materials Science and Engineering Department, Islamic Azad University Ahvaz Branch, Ahvaz, Iran b School of Electrical and Electronic Engineering, Sensor and Actuator Laboratory II, BLK S2.1, B6-02, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore c Electroceramics Group, Materials Science and Engineering Department, Shiraz University of Technology, 71555-313, Shiraz, Iran |
| Abstract: | This paper investigates structural, microstructural and magnetic properties of amorphous/nanocrystalline Ni58Fe12Zr10Hf10B10 powders prepared by high energy milling. Ball milling of Ni, Fe, Zr, Hf and B leads to alloying of the element powders at 120 h. The results show that at 190 h the amorphous content is at the highest level and the grain size is about 2 nm. The magnetic measurements reveal that the coercivity and the saturation magnetization reach about 20 Oe and 30 emu/g at 190 h and become approximately 5 Oe and 40 emu/g after a suitable heat treatment, respectively. |
| Keywords: | Mechanical alloying X-ray diffraction Magnetic measurements Amorphous materials |
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