| 铁基纳米晶合金的热膨胀研究 |
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| 引用本文： | 卢志超,鲜于泽,沈保根.铁基纳米晶合金的热膨胀研究[J].物理学报,1994,43(5):799-802. |
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| 作者姓名： | 卢志超 鲜于泽 沈保根 |
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| 作者单位： | (1)东北大学物理系; (2)中国科学院物理研究所 |
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| 基金项目： | 中国科学院金属研究所快速凝固开放实验室资助的课题. |
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| 摘 要： | 研究了铁基纳米晶合金Ｆｅ１３．５Ｃｕ１Ｎｂ３Ｓｉ１３．５Ｂ９和Ｆｅ９１Ｚｒ７Ｂ２的热膨胀特性，并与相应成分的非晶合金做了比较。结果表明，在居里温度以下，纳米晶合金的热膨胀系数比非晶合金大得多，而在居里温度以上，两者几乎相等。认为上述的热膨胀的差别可能与铁基非晶态合金中存在的因瓦效应有关。
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| 关 键 词： | 纳米晶合金 金属玻璃 热膨胀 |
| 收稿时间： | 6/1/1993 12:00:00 AM |
THERMAL EXPANSION PROPERTIES OF Fe-BASED NANOCRYSTALLINE ALLOYS |
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| LU ZHI-CHAO,XIAN YU-ZE and SHEN BAO-GEN.THERMAL EXPANSION PROPERTIES OF Fe-BASED NANOCRYSTALLINE ALLOYS[J].Acta Physica Sinica,1994,43(5):799-802. |
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| Authors: | LU ZHI-CHAO XIAN YU-ZE and SHEN BAO-GEN |
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| Abstract: | Thermal expansion properties of Fe-based nanocrystalline Fe１３．５Ｃｕ１Ｎｂ３Ｓｉ１３．５Ｂ９ and Ｆｅ９１Ｚｒ７Ｂ２ alloys are studied, and are compared with that of the amorphous alloys with the same composition. The experimental results indicated that, below Curie temperature, the thermal expansion coefficients of the nanocrystalline alloys are much greater than that of the amorphous alloys, and above Curie temperature, the thermal expansion coefficients of the nanocrystalline alloys exceed that of the amorphous alloys a little. We believe that the difference of the thermal expansion between Fe-based nanocrystalline and amorphous alloys is related to the Invar effect. |
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