| 由观测无胁强作用下的热膨胀和电阻研究金属玻璃(Fe0.85Ni0.15)84B16的结构弛豫 |
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| 引用本文： | 姚慈顺,程先安.由观测无胁强作用下的热膨胀和电阻研究金属玻璃(Fe0.85Ni0.15)84B16的结构弛豫[J].物理学报,1988,37(11):1855-1858. |
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| 作者姓名： | 姚慈顺 程先安 |
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| 作者单位： | (1)北方工业大学; (2)北京航空航天大学应用数理系 |
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| 摘 要： | 本文通过长度、电阻和热膨胀系数的测量研究了(Fe0.85Ni0.15)84B16金属玻璃结构弛豫和退火温度Ta的关系。基于上述物理量对结构弛豫的关系,对曲线作了分析和讨论。在退火温度为175℃至250℃之间结构弛豫随Ta的变化率最大。
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| 收稿时间： | 1987-12-04 |
STUDY OF THE STRUCTURAL RELAXATION OF METALLIC GLASS (Fe0.85Ni0.15)84B16 BY MEASURING THE THERMAL EXPANSION AND RESISTANCE UNDER ZERO STRESS |
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| YAO CI-SHUN and CHENG XIAN-AN.STUDY OF THE STRUCTURAL RELAXATION OF METALLIC GLASS (Fe0.85Ni0.15)84B16 BY MEASURING THE THERMAL EXPANSION AND RESISTANCE UNDER ZERO STRESS[J].Acta Physica Sinica,1988,37(11):1855-1858. |
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| Authors: | YAO CI-SHUN and CHENG XIAN-AN |
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| Abstract: | The dependence of the structural relaxation of the material on the annealing temperature Ta is studied by measuring the difference of thermal elongation △l or that of the electrical resistivity △ρ and that of the thermal expansion coeffcient △α between an as-quenched and an annealed sample. △α/α0 is measured by placing an as-quenched and an annealed sample in juxtaposition and heating them with iodine-tungsten lamps. The samples expand freely and the rsitivity of the as-onerched sample, respeomparator. The experimental results are summarized by three curves, namely △α/α0 vs Ta, △l/l0 vs Ta and △ρ/ρ0 vs Ta, where α0, l0, and ρ0 are the linear expansion coefficient, the length and the resistivity of the as-quenched sample, respec lively. The obtained results are discussed. |
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