Chen, T;
Cong, Q;
Sun, C;
Jin, J;
Choy, K-L;
(2018)
Influence of substrate initial temperature on adhesion strength of ice on aluminum alloy.
Cold Regions Science and Technology
, 148
pp. 142-147.
10.1016/j.coldregions.2018.01.017.
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Abstract
The present work investigates the influence of the initial temperature of a substrate on the ice adhesion strength by analyzing the freezing characteristics of water droplets adhered to the substrate. The ice adhesion strength on 6061 aluminum alloy was measured using a dedicated strength testing apparatus, and the freezing process of water droplets at different initial temperatures of the alloy surface was examined with a microscope. The results of the experiments show that the ice adhesion strength on the aluminum alloy surface at ambient temperature was twice as large as that measured on a colder surface (e.g., −5 °C). Combining the experimental results with the microscopic observation of the freezing process revealed that at high initial surface temperature (i.e. equal to 18 °C), the water droplets thoroughly spread on the aluminum alloy surface at high temperature, formed a larger contact area. In addition, the initial surface temperature would influence the type of crystallization. Moreover, the advantages and disadvantages of thermal de-icing approaches, widely used in engineering (especially in the high-speed rail and aerospace fields), were discussed.
| Type: | Article |
|---|---|
| Title: | Influence of substrate initial temperature on adhesion strength of ice on aluminum alloy |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.coldregions.2018.01.017 |
| Publisher version: | https://doi.org/10.1016/j.coldregions.2018.01.017 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Thermal de-icing, Ice adhesion strength, Initial surface temperature, Aluminum alloy, Contact interface |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > MAPS Faculty Office UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > MAPS Faculty Office > Institute for Materials Discovery |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10048243 |
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