| Glass Formation Ability and Kinetics of the Gd55A120Ni25 Bulk Metallic Glass |
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| 作者姓名： | 赵哲龙 夏雷 丁鼎 董远达 |
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| 作者单位： | Institute of Materials, Shanghai University, Shanghai 200072Center for Advanced Microanalysis, Shanghai University, Shanghai 200444 |
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| 基金项目： | Supported by the National Nature Science Foundation of China under Grant No 50471099, the Nano-Tech Foundation of Shanghai Science and Technology Commission under Grant No 05nm05046. |
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| 摘 要： | We report a new bulk glass-forming alloy GdssA12oNi25. The bulk sample of the alloy is prepared in the shape of rods in diameter 2ram by suction casting. The rod exhibits typical amorphous characteristics in the x-ray diffraction pattern, paramagnetic property at 30OK, distinct glass transition and multi-step crystallization behaviour in differential scanning calorimetry traces. The gJass formation ability of the alloy is investigated by using the reduced glass transition temperature Trg and the parameter γ- Kinetics of glass transition and primary crystallization is also studied. The fragility parameter m obtained from the Vogel-Fulcher-Tammann dependence of glass transition temperature Tg on In φ （φ is the heating rate） classifies the bulk metallic glasses into the intermediate category according to Angell＇s classification.
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| 关 键 词： | 玻璃结构 金属玻璃 X射线衍射 合金 磁热效应 固体物理学 |
| 收稿时间： | 2005-12-07 |
| 修稿时间： | 2005-12-07 |
Glass Formation Ability and Kinetics of the Gd55A120Ni25 Bulk Metallic Glass |
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| JO Chol-Lyong, XIA Lei, DING Ding, DONG Yuan-Da.Glass Formation Ability and Kinetics of the Gd55A120Ni25 Bulk Metallic Glass[J].Chinese Physics Letters,2006,23(3):672-674. |
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| Authors: | JO Chol-Lyong XIA Lei DING Ding DONG Yuan-Da |
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