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Generalized model for laser-induced surface structure in metallic glass
- Source :
- Chinese Physics B. 25:068104
- Publication Year :
- 2016
- Publisher :
- IOP Publishing, 2016.
-
Abstract
- 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.
- Subjects :
- Capillary wave
Materials science
Amorphous metal
Condensed matter physics
business.industry
Ripple
General Physics and Astronomy
02 engineering and technology
021001 nanoscience & nanotechnology
Laser
01 natural sciences
law.invention
Pulse (physics)
Physics::Fluid Dynamics
Viscosity
Wavelength
Amplitude
Optics
law
0103 physical sciences
010306 general physics
0210 nano-technology
business
Subjects
Details
- ISSN :
- 16741056
- Volume :
- 25
- Database :
- OpenAIRE
- Journal :
- Chinese Physics B
- Accession number :
- edsair.doi...........d5265ccad46296b7830f7694855cea5b