| 非晶态Fe90—xNixZr10合金的起始磁化率减落 |
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| 引用本文： | 李印峰,郭慧群,许汝峰,沈保根.非晶态Fe90—xNixZr10合金的起始磁化率减落[J].金属学报,1992,28(3):60-64. |
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| 作者姓名： | 李印峰 郭慧群 许汝峰 沈保根 |
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| 作者单位： | 中国科学院物理研究所 磁学开放实验室
(李印峰，郭慧群，许汝峰)，中国科学院物理研究所 磁学开放实验室(沈保根) |
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| 摘 要： | 测量了非晶态Fe_(90-x)Ni_xZr_(10)(x=10,20,30)合金淬态和预处理态(573K,45min)样品的起始磁化率等时减落谱和等温减落谱,在等时减落谱的低温区(T<300K)观察到一伴随小峰,本文用二能级模型分析了弛豫过程的可逆性和热处理效应,对可逆减落谱的理论拟合给出可逆弛豫过程的激活能谱P(Q)和特征弛豫时间τ_(OR)。
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| 关 键 词： | 非晶合金 减落 激活能谱 磁化率 |
| 收稿时间： | 1992-03-18 |
| 修稿时间： | 1992-03-18 |
DISACCOMMODATION OF INITIAL SUSCEPTIBILITY IN AMORPHOUS Fe_(90-x)Ni_xZr_(10) ALLOYS |
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| LI Yinfeng,GUO Huiqun,XU Rufeng,SHEN Baogen Laboratory of Magnetics.DISACCOMMODATION OF INITIAL SUSCEPTIBILITY IN AMORPHOUS Fe_(90-x)Ni_xZr_(10) ALLOYS[J].Acta Metallurgica Sinica,1992,28(3):60-64. |
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| Authors: | LI Yinfeng GUO Huiqun XU Rufeng SHEN Baogen Laboratory of Magnetics |
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| Affiliation: | LI Yinfeng,GUO Huiqun,XU Rufeng,SHEN Baogen Laboratory of Magnetics,Institute of Physics,Academia Sinica,Beijing |
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| Abstract: | The disaccommodation (DA) measurements of initial susceptibility were per-
formed in amorphous Fe_(90-x)Ni_xZr_(10)(x=10, 20, 30) alloys. The DA was measured for two dif-
ferent 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 small 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 pro-
cesses gave a spectrum of activation energies and pre--exponential factor. |
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| Keywords: | amorphous alloy disaccommodation Activation energy spectrum |
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