Browse Publications Technical Papers 1999-01-1584
1999-04-20

Experimental Investigation of Ice Adhesion 1999-01-1584

An experimental study was conducted to investigate ice-adhesion on clean and coated aluminum surfaces. A test apparatus using the parallel plate linear shear technique was designed along with a data acquisition system for conducting the tests and recording the experimental data. A low pulling rate was applied to specially prepared test specimens for measuring the strength of ice adhesion for a range of test conditions. The effects of surface roughness, surface contamination, and water impurity on ice adhesion were investigated. In addition, tests were conducted to evaluate the effectiveness of a low ice-adhesion coating applied to aluminum test specimens.
The results obtained showed that the bond between ice and metal was considerably lower for tap water than for distilled water. For the clean and coated aluminum surfaces the strength of ice adhesion varied with specimen roughness. However, no clear trend was established between ice adhesion strength and surface roughness. In some but not in all cases the low-adhesion coating reduced the adhesion strength of ice.
Previous investigations have shown considerable scatter in ice adhesion measurements obtained from repeated tests. In this study, the scatter in the data was substantially reduced by careful control of the test parameters, which influence the experimental measurements.

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