| Cu60 Zr29 Ti11大块非晶合金的粘度特征和强液体行为 |
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| 引用本文： | 闫元,王丹,孙民华.Cu60 Zr29 Ti11大块非晶合金的粘度特征和强液体行为[J].哈尔滨师范大学自然科学学报,2009,25(2):65-68. |
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| 作者姓名： | 闫元 王丹 孙民华 |
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| 作者单位： | 哈尔滨师范大学 |
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| 基金项目： | 黑龙江省教育厅科学技术研究项目(11511125) |
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| 摘 要： | 采用铜模铸造法制备了Cu60 Zr29 Ti11大块非晶合金，用x射线衍射仪（XRD）、三点压弯式粘度仪对该非晶合金的动力学性质进行了研究．测定了大块非晶合金Cu60 Zr29 Ti11在过冷液相区的粘度，得到了它的动力学脆性系数m=30．848，以及流变激活能E=63．437kJ／mol．表明大块非晶合金Cu60 Zr29 Ti11是一种强液体．分析了合金在过冷态的流变激活能变化规律，发现流变激活能的变化并不符合Kivelson的super—Arrhenius公式．
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| 关 键 词： | 大块非晶合金 粘度 脆性 流变激活能 |
THE VISCOSITY PROPERTIES AND STRONG LIQUID BEHAVIOR OF Cu60Zr29Ti11 BULK METALLIC GLASS |
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| Yan Yuan,Wang Dan,Sun Minhua.THE VISCOSITY PROPERTIES AND STRONG LIQUID BEHAVIOR OF Cu60Zr29Ti11 BULK METALLIC GLASS[J].Natural Science Journal of Harbin Normal University,2009,25(2):65-68. |
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| Authors: | Yan Yuan Wang Dan Sun Minhua |
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| Institution: | Harbin Normal University |
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| Abstract: | Cu60Zr29Ti11 bulk metallic glass rod was casted by copper mold casting method.The dynamic viscosity near the glass transition region for Cu60Zr29Ti11 was measured using three-point beam bending methods.The fragility parameter m and active energy for viscous flow were calculated to be fragility parameter m = 30.848 and Activation energy for viscous flow E=63.437 kJ/mol respectively.It is shown that the supercooled liquid of Cu60Zr29Ti11 alloy is strong liquid.It was found that Kivelson's super-Arrhenius equa... |
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| Keywords: | Bulk metallic glass Viscosity Fragility Activation energy for viscous flow |
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