New Technique for Visualizing Microboiling Phenomena and Its Application to Water Pulse Heated by a Thin Metal Film
C Avedisian, Richard E. Cavicchi, Michael J. Tarlov
This paper presents a new method for photographing fast transient microscale processes with illustration by the liquid-to-vapor phase change process, with illustration by bubble nucleation from pulse-heated thin films immersed in a pool of water. The method combines a pulsed laser for the light source and a microscope with 100X magnification of a heater element (platinum film, 30 microns long, 15 microns wide, and 0.2 microns thick immersed in water), and associated instrumentation to coordinate the laser pulse with the electrical pulse at various delay times to step through the evolutionary process of the phase change. Results show bubble nucleation and morphology in subcooled water for electrical (heating) pulses with duration ranging between 0.50 ms to 1ms.
, Cavicchi, R.
and Tarlov, M.
New Technique for Visualizing Microboiling Phenomena and Its Application to Water Pulse Heated by a Thin Metal Film, Review of Scientific Instruments, [online], https://doi.org/10.1063/1.2206560, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=830952
(Accessed November 30, 2023)