| Dy_2Fe_(17-x)Al_x化合物的X射线衍射研究 |
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| 引用本文： | 郝延明,高艳. Dy_2Fe_(17-x)Al_x化合物的X射线衍射研究[J]. 天津师范大学学报(自然科学版), 1999, 0(2) |
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| 作者姓名： | 郝延明 高艳 |
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| 作者单位： | 天津师范大学物理系(郝延明)，天津师范大学图书馆(高艳) |
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| 摘 要： | 利用Ｘ射线步进扫描研究了Ｄｙ２Ｆｅ１７－ｘＡｌｘ金属间化合物的详细结构，给出了结构中诸参数的变化情况并分析了这些参数的变化规律．
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| 关 键 词： | 金属间化合物 单胞体积 占有率 金属键长 |
A X Ray Diffraction Study of Dy 2Fe 17- x Al x Compounds |
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| Hao Yan ming. A X Ray Diffraction Study of Dy 2Fe 17- x Al x Compounds[J]. Journal of Tianjin Normal University(Natural Science Edition), 1999, 0(2) |
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| Authors: | Hao Yan ming |
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| Abstract: | Aluminum substituted Dy 2Fe 17- x Al x solid solution has been studied by The Step X Ray Diffraction. A Rietveld analysis of the X Ray diffraction indicates that the Al atoms have a high initial affinity for the 18h site, shows a high affinity for the 6c site and 18f site at high Al concentrations, and are absent from the 9d site at all Al concentrations. Some shorter bond lengths including 18h 18h, 9d 18f, and so on derived from the positional parameters increase with x increasing. |
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| Keywords: | solid compound unit sell volume affinity bond length |
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