中国物理B ›› 2016, Vol. 25 ›› Issue (6): 68104-068104.doi: 10.1088/1674-1056/25/6/068104
• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇 下一篇
Lin-Mao Ye(叶林茂), Zhen-Wei Wu(武振伟), Kai-Xin Liu(刘凯欣), Xiu-Zhang Tang(汤秀章), Xiang-Ming Xiong (熊向明)
Lin-Mao Ye(叶林茂)1, Zhen-Wei Wu(武振伟)1,2, Kai-Xin Liu(刘凯欣)1,2, Xiu-Zhang Tang(汤秀章)3, Xiang-Ming Xiong (熊向明)1
摘要:
The details of the special three-dimensional micro-nano scale ripples with a period of hundreds of microns on the surfaces of a Zr-based and a La-based metallic glass irradiated separately by single laser pulse are investigated. We use the small-amplitude capillary wave theory to unveil the ripple formation mechanism through considering each of the molten metallic glasses as an incompressible viscous fluid. A generalized model is presented to describe the special morphology, which fits the experimental result well. It is also revealed that the viscosity brings about the biggest effect on the monotone decreasing nature of the amplitude and the wavelength of the surface ripples. The greater the viscosity is, the shorter the amplitude and the wavelength are.
中图分类号: (Micro- and nanoscale pattern formation)