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DISACCOMMODATION OF INITIAL SUSCEPTIBILITY IN AMORPHOUS Fe_(90-x)Ni_xZr_(10) ALLOYS
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作者 LI Yinfeng GUO Huiqun XU Rufeng SHEN Baogen Laboratory of Magnetics,Institute of Physics,Academia Sinica,Beijing,China 《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 1992年第11期340-345,共6页
The disaccommodation(DA)measurements of initial susceptibility were performed in amorphous Fe_(90-x)Ni_xZr_(10)(x=10,20,30)alloys.The DA was measured for two different amorphous states:as-quenched and pretreated at 53... The disaccommodation(DA)measurements of initial susceptibility were performed in amorphous Fe_(90-x)Ni_xZr_(10)(x=10,20,30)alloys.The DA was measured for two different amorphous states:as-quenched and pretreated at 537 K for 45 min.For all the as- quenched samples,in the isochronal spectra of DA a well defined relaxation peak around 350 K is accompanied by a samll but distinct peak near the Curie temperature of Fe_(90)Zr_(10) phase(T_c=230 K).The reversibility and annealing effect on DA are analyzed within the framework of two-level model.The fits of the theory to the experimental data of reversible relaxation processes gave a spectrum,of activation energies and pre- exponential factor. 展开更多
关键词 amorphous alloy DISACCOMMODATION fe_(90-x) Ni_x Zr_(10)
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非晶态Fe_(90-x)Co_xZr_(10)合金的Invar效应研究 被引量:1
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作者 卢志超 鲜于泽 +5 位作者 李际周 叶春堂 李竹起 康健 沈保根 吕曼祺 《金属学报》 SCIE EI CAS CSCD 北大核心 1994年第3期B126-B129,共4页
研究了作晶态Fe_(90-x)Co_xZr_(10)合金的磁体积效应和广义声子谱.通过热膨胀测量和磁测量给出了自发体积磁致伸缩ωs和平均磁矩μ_(FeCo)与平均价电子数N_(eff)的关系,发现ωs的峰值位置与μ_(Fe... 研究了作晶态Fe_(90-x)Co_xZr_(10)合金的磁体积效应和广义声子谱.通过热膨胀测量和磁测量给出了自发体积磁致伸缩ωs和平均磁矩μ_(FeCo)与平均价电子数N_(eff)的关系,发现ωs的峰值位置与μ_(FeCo)开始急剧下降的位置(N_(eff)=8.1-8.2)相对应,从而证实了金属-金属型非晶态因瓦合金中的Invar效应与铁磁态的不稳性有关.用非弹性中子散射方法测量了广义声子谱,从中观察到了与Invar效应相关的声子谱软化现象. 展开更多
关键词 金属玻璃 铁钴锆合金 Invar效应
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