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Author(s): |
Dan Wang, Key Laboratory of New Carbon-based Functional and Super-hard Materials of Heilongjiang Province, Mudanjiang Normal College,Mudanjiang, China, 157012
Min-hua Sun, School of Physics and Electronic Engineering, Harbin Normal University, Harbin, China, 150025
Long-cheng Yin, Key Laboratory of New Carbon-based Functional and Super-hard Materials of Heilongjiang Province, Mudanjiang Normal College,Mudanjiang, China, 157012
Hai-liang Huang, Key Laboratory of New Carbon-based Functional and Super-hard Materials of Heilongjiang Province, Mudanjiang Normal College,Mudanjiang, China, 157012
Hong-wei Jiang, Key Laboratory of New Carbon-based Functional and Super-hard Materials of Heilongjiang Province, Mudanjiang Normal College,Mudanjiang, China, 157012
Hong-yan Peng, Key Laboratory of New Carbon-based Functional and Super-hard Materials of Heilongjiang Province, Mudanjiang Normal College,Mudanjiang, China, 157012
You-jin Zheng, Key Laboratory of New Carbon-based Functional and Super-hard Materials of Heilongjiang Province, Mudanjiang Normal College,Mudanjiang, China, 157012
Yu-qiang Chen, Key Laboratory of New Carbon-based Functional and Super-hard Materials of Heilongjiang Province, Mudanjiang Normal College,Mudanjiang, China, 157012 |
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Abstract: |
Zr80-xCuxNi10Al10(x=16,18,20) (at.%) bulk metallic glasses rod were casted by copper mold casting method. The kinetic properties of the as-cast alloys were measured by x-ray diffraction (XRD),three-point beam bending methods, small angle X-ray scattering (SAXS). Zr80-xCuxNi10Al10(x=16,18,20) bulk metallic glass shows a strong liquid at high temperature, whereas when the glass transition is approached, it shows a `super-strong' one. On the basis of available evidence, it is manifest that the dynamical behavior of Zr80-xCuxNi10Al10(x=16,18,20) BMG in the supercooled region undergoes a strong-to-super-strong. With the increase of Cu element, a phenomenon increasingly evident. Using small angle X-ray scattering experiments, we found that this transition is assumed to be related to a phase separation process in supercooled liquid.
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