DUO Liang XU Zuxiong MA Ruzhang Beijing University of Science and Technology
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Beijing.China Institute of High Energy Physics
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Academia Sinica
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P.O.Box 2732
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Beijing
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China
金属学报(英文版)
The amorphous Fe_(90-x)V_xZr_(10) alloy after electolytic hydrogenation procedure was studied by means of Mossbauer effect,magnetic measurement.X-ray diffaction and secondary ion mass spectroscopy(SIMS)techniques.The experimental results show that the magnetic properties of amorphous Fe_(90-x)V_xZr_(10) alloy are highly sensitive to the presence of hydrogen. The isomer shift(IS)has a small positive change and the magnetic properties transfer from paramagnetic to ferromagnetic State by hydrogenation,and the effect of hydrogen absorption is to raise Fe magnetic moment(from the increase of saturation maguetization)and Curie temperature T_c from 257 to 384 K.Finally.the considerable increase of magnetic properttes of amorphous Fe_(90-x)V_xZr_(10) alloy by hydrogenation is attributable to the change of hybridization effect between outer electrons of Zr atoms and 3d electrons of Fe atoms.From the results of SIMS experiment,it is concluded that the hydrogen atoms is localized around Zr atoms wheh hydrogen atoms enter into the allor.
关键词:
amorphous alloy
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