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Solid-liquid-vapor phase change of a subcooled metal powder particle subjected to nanosecond laser heating

Shi, Yu and Zhang, Yuwen and Konrad, Chad (2007) Solid-liquid-vapor phase change of a subcooled metal powder particle subjected to nanosecond laser heating. NANOSCALE AND MICROSCALE THERMOPHYSICAL ENGINEERING, 11 (3-4). pp. 301-318.

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Abstract

Solid-liquid-vapor phase change of a metal particle subjected to nanosecond pulse laser heating is investigated analytically. Temperature distribution in the particle, locations of solid-liquid and liquid-vapor interface, saturation temperature, and recoil pressure around the particle were obtained analytically. Effects of physical parameters including laser fluence, pulse width, initial temperature, and particle diameter on the phase change were investigated. The results show that a decrease in particle radius and laser pulse width, or an increase in laser fluence and initial particle temperature, results in an earlier melting time, a higher surface temperature, more evaporated material, and a higher final thermalized temperature.

Item Type:Article
Uncontrolled Keywords:melting; solidification; evaporation; laser
Subjects:Physical Science > Nanophysics
Material Science > Nanofabrication processes and tools
ID Code:5990
Deposited By:IoN
Deposited On:21 Sep 2009 11:02
Last Modified:21 Sep 2009 11:02

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