Surface properties of Zr50Cu40Al10 bulk metallic glass
Surface properties of Zr50Cu40Al10 bulk metallic glass
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DOI：
10.1063/1.2732168
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发表时间：
2007-04
影响因子：
4
通讯作者：
K. Nakayama;Y. Yokoyama;T. Sakurai;A. Inoue
中科院分区：
文献类型：
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作者：
K. Nakayama;Y. Yokoyama;T. Sakurai;A. Inoue
原子力显微镜（AFM）可以对Zr50Cu40Al10块体金属玻璃（BMG）的表面形态演变进行成像。真空加热导致纳米团簇的形成，并在粘性流动的驱动下产生显著的结构变化。俄歇电子能谱证实纳米团簇对应于氧化锆。此外，纳米团簇不影响BMG的结晶过程，但粘性流动对表面改性至关重要。温度相关AFM观察与化学分析相结合是研究BMG表面基本性质的新方法。
Atomic force microscope (AFM) makes it possible to image the surface morphological evolutions of the Zr50Cu40Al10 bulk metallic glass (BMG). The heating in vacuum leads to the creation of nanoclusters and the significant structural changes driven by viscous flow. Auger electron spectroscopy confirms that the nanoclusters correspond to zirconium oxide. Furthermore, the nanoclusters do not influence the crystallization process of the BMG but the viscous flow is crucial to surface modification. The temperature dependent AFM observation combined with chemical analysis is a new protocol to study fundamental properties of BMG surfaces.