| A New Method for Preparation of Nanocrystalline Molybdenum Nitride |
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| 作者姓名： | 沙龙海 崔启良 张剑 李雪飞 周强 邹广田 |
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| 作者单位： | National Key Laboratory of Superhard Materials, Jilin University, Changchun 130012 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 50072005. |
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| 摘 要： | Nanocrystalline molybdenum nitride （γ-Mo2N） with the cubic structure is prepared by the direct-current arc discharge method in N2 gas, using metal Mo or W rod as a cathode. The x-ray diffraction （XRD） and transmission electron microscopy （TEM） are used to characterize the product. It is found that the conversion of Mo to γ-Mo2N and affinity of Mo to N2 are determined by the nitrogen pressure. Moreover, we compare the effect of Mo and W rod as a cathode for preparing γ-Mo2N. The average size of γ-Mo2N particles is about 5 nm. The rapid quenching mechanism can be used to explain the formation of nanocrystalline γ-Mo2N.
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| 关 键 词： | 氮化钼纳米晶 立方结构 阳极 X射线衍射 平均尺寸 |
| 收稿时间： | 2005-08-30 |
| 修稿时间： | 2005-08-30 |
A New Method for Preparation of Nanocrystalline Molybdenum Nitride |
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| SHEN Long-Hai, CUI Qi-Liang, ZHANG Jian, LI Xue-Fei, ZHOU Qiang, ZOU Guang-Tian.A New Method for Preparation of Nanocrystalline Molybdenum Nitride[J].Chinese Physics Letters,2005,22(12):3192-3194. |
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| Authors: | SHEN Long-Hai CUI Qi-Liang ZHANG Jian LI Xue-Fei ZHOU Qiang ZOU Guang-Tian |
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