激光表面纹理化过程中的Rayleight-Taylor不稳定性
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摘要: 用表面纹理化的热模型，分析了固体表面的熔化和重固化的物理过程，计算了在纹理化过程中的表面温度，穿透深度，熔化深度，相面移动速度等物理量，提出了Rayleight-Taylor不稳定性形成周期化结构的机理。Abstract: The melt depth and liquid/solid interface move velocity during the laser induced periodic structure were numerical calculated by laser heating model. The melt and re-solidify phenomena of the substrate is investigated, the origination laser induced periodic structure is Rayleight-Taylor instability, and the spatial period is calculated by hydrodynamic equations.
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Key words:
- heat model /
- laser induced periodic structure /
- instability
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