An SEM Study of Nucleation Sites in Pool Boiling From 304 Stainless Steel

[+] Author and Article Information
J. P. Nail

Chicago Bridge & Iron, Birmingham, Ala.

R. I. Vachon, J. Morehouse

Mechanical Engineering Department, Auburn University, Auburn, Ala.

J. Heat Transfer 96(2), 132-137 (May 01, 1974) (6 pages) doi:10.1115/1.3450152 History: Received March 05, 1974; Online August 11, 2010


A Scanning Electron Microscope (SEM) was used to examine pool boiling nucleation sites on 304 stainless steel in contact with distilled, degassed water. Nucleation sites were located during the boiling process by noting the coordinates of the bubble locations on the surface. These locations were then magnified using the SEM and photographs made of the nucleation sites. The radii of the cavities varied from 14.8μ-in. to 180μ-in. and the widths of grooves varied from 75μ-in. to 154μ-in.

Copyright © 1974 by ASME
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