EFFECT OF HYDROGEN ABSORPTION ON MAGNETIC PROPERTIES OF AMORPHOUS Fe_(90-x)V_xZr_(10) ALLOYS
非晶态Fe_(90-x)V_xZr_(10)合金吸氢现象及磁性变化的研究

The amorphous Fe_(90-x)V_xZr_(10) alloy after electrolytic hydrogenation pro- cedure was studied by means of Mossbauer effect, magnetic measuement, X-ray dif- fraction and second ion mass spectroscopy (SIMS) techniques. The experimental re- sults show that the magnetic properties of amorphous Fe_(90-x)V_xZr_(10) alloy are highly sensitive to presence of hydrogen. The isomer shift (IS) has a small positive change and the magnetic properties transfer from paramagnetic to ferromagnetic state by hydrogenation. The effect of hydrogen absorption is also to raise Fe magnetic mo- ment and Curie temperature T_C from 257 to 384 K. Finally, the considerable in- crease of magnetic properties of amorphous Fe_(90-x)V_xZr_(10) alloy by hydrogenation is at- tributable to the change of hydridization effect between outer electrons of Zr atoms and 3d-electrons of Fe atoms. It may be concluded that the hydrogen atoms is loca- lized around Zr atoms when hydrogen atoms enter inside of alloy.