Molecular Dynamics Simulation of Heat Transfer and Phase Change During Laser Material Interaction  

Oleh:

Xianfan, Xu ; Xinwei, Wang

Jenis: Article from Bulletin/Magazine
Dalam koleksi: Journal of Heat Transfer vol. 124 no. 2 (Apr. 2002), page 265-274.
Topik: laser; molecular dynamics; simulation; heat transfer; phase change; laser material interaction

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ90.3 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

In this work, heat transfer and phase change of an argon crystal irradiated by a picosecond pulsed laser are investigated using molecular dynamics simulations. The result reveals no clear interface when phase change occurs, but a transition region where the crystal structure and the liquid structure co - exist. Superheating is observed during the melting and vaporizing processes. The solid - liquid interface is found to move with a velocity of hundreds of meters per second, and the vapor is ejected from the surface with a vapor front velocity of hundreds of meters per second.

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