| Cu-Zr,Cu-Ti非晶态合金原子近邻结构的EXAFS研究 |
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| 引用本文： | 万军,陆坤权,赵雅琴,常龙存,方正知. Cu-Zr,Cu-Ti非晶态合金原子近邻结构的EXAFS研究[J]. 北京科技大学学报, 1987, 0(1) |
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| 作者姓名： | 万军 陆坤权 赵雅琴 常龙存 方正知 |
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| 作者单位： | 北京钢院(万军)，中国科学院物理研究所(陆坤权，赵雅琴，常龙存)，中国科学院空间物理研究所(方正知) |
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| 摘 要： | 本工作用EXAFS技术测定了非晶态合金Cu_XZr_(1-X)(X=33,50)和Cu_(80)Ti_(20)中Cu原子K吸收EXAFS谱,得出了原子间距和配位数等结构参数。本文通过对上述非(?)态合金EXAFS数据的分析,给出了Cu_XZr_(1-X)和Cu_XTi_(1-X)体系中化学短程有序的研究结果。当Cu原子含量为50％时,体系中不显示化学短程有序,Cu原子的含量增加,此类非晶态合金中异类原子趋子互相结合;Cu原子的含量低于50％时,同类原子倾向于互相结合。
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| 关 键 词： | EXAFS 非晶态合金 化学短程有序 |
EXAFS Study of Local Structure in Amorphous Alloys Cu-Zr,Cu-Ti |
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| Wan Jun Lu Kunquan Zhao Yaqin Chang Longcun Fang Zhengzhi. EXAFS Study of Local Structure in Amorphous Alloys Cu-Zr,Cu-Ti[J]. Journal of University of Science and Technology Beijing, 1987, 0(1) |
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| Authors: | Wan Jun Lu Kunquan Zhao Yaqin Chang Longcun Fang Zhengzhi |
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| Affiliation: | Wan Jun Lu Kunquan Zhao Yaqin Chang Longcun Fang Zhengzhi |
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| Abstract: | The Cu K edge EXAFS of amorphous alloy CuxZr1-x(X = 33,50) and Cu80 Ti20 were measured.The structural parameters such as distance between atoms and coordination numbers were obtained. In this paper, investigation of the chemical short range order in the systems of Cux Zr1-x and CuxTi1-x is carried out, and the results are presented.There is no chemical short range ord- er ia 50 at% Cu alloy,while increasing the copper content in this kind of systems increases the tendency to order with unlike atoms and decreasing the copper content willincrease the tendency to order with like atoms. |
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| Keywords: | EXAFS amorphous alloy chemical short range order |
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