| Al_(88)Co_4Y_6Er_2非晶合金的晶化动力学行为 |
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| 引用本文： | 牛犇,孙民华.Al_(88)Co_4Y_6Er_2非晶合金的晶化动力学行为[J].高师理科学刊,2012(2):73-75. |
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| 作者姓名： | 牛犇 孙民华 |
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| 作者单位： | 东北石油大学华瑞学院;哈尔滨师范大学物理与电子工程学院 |
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| 摘 要： | 采用单辊旋淬法制备了Al88Co4Y6Er2非晶合金,差热分析手段研究了该非晶合金晶化动力学性能.根据约化玻璃转变温度Trg,发现Er(2at%)元素部分取代Al88Co4Y8非晶合金中的Y元素后,得到的Al88Co4Y6Er2非晶合金具有更强的玻璃形成能力.计算得到Al88Co4Y6Er2非晶合金的晶化激活能,初始晶化激活能为381 kJ·mol-1,发现Al88Co4Y6Er2非晶合金具有很好的热稳定性.
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| 关 键 词： | 铝基非晶合金 晶化激活能 热稳定性 |
Kinetics property of Al88Co4Y6Er2 amorphous alloy |
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| NIU Ben,SUN Min-hua.Kinetics property of Al88Co4Y6Er2 amorphous alloy[J].Journal of Science of Teachers＇College and University,2012(2):73-75. |
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| Authors: | NIU Ben SUN Min-hua |
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| Institution: | 1.School of Huarui,Northeast Petroleum University,Harbin 150028,China;2.School of Physics and Electronics Engineering,Harbin Normal University,Harbin 150025,China) |
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| Abstract: | Al88Co4Y6Er2 amorphous alloy has been prepared by melt-spinning method.Kinetics behaviour of the Al88Co4Y6Er2 alloy has been studied by differential scanning calorimetry(DSC)and differential thermal analyzer(DTA).According to the reduced glass transition temperature Trg,it has been implied that the addition of a small amount of Er(2at%)for replacing Y improves the glass-forming ability(GFA) of Al88Co4Y8amorphous alloy.With Kissinger′s method,crystallization activation energy of Al88Co4Y6Er2 amorphous alloy has been calculated,and primary crystallization activation energy is 381kJ.mol-1,while well thermal stability in Al88Co4Y6Er2amorphous alloy has been found. |
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| Keywords: | Al-based amorphous Alloy crystallization activation energy thermal stability |
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