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Article

Interlaboratory Study of Ice Adhesion Using Different Techniques

1
Department of Structural Engineering, Norwegian University for Science and Technology (NTNU), NO-7491 Trondheim, Norway
2
Anti-Icing Materials International Laboratory (AMIL), Université du Québec à Chicoutimi, 555 Blvd. de l’Université, Chicoutimi, QC G7H 2B1, Canada
*
Author to whom correspondence should be addressed.
Coatings 2019, 9(10), 678; https://doi.org/10.3390/coatings9100678
Received: 13 September 2019 / Revised: 3 October 2019 / Accepted: 16 October 2019 / Published: 18 October 2019
(This article belongs to the Special Issue Anti-Icing Coatings and Surfaces)
Low ice adhesion surfaces are a promising anti-icing strategy. However, reported ice adhesion strengths cannot be directly compared between research groups. This study compares results obtained from testing the ice adhesion strength on two types of surfaces at two different laboratories, testing two different types of ice with different ice adhesion test methods at temperatures of −10 and −18 °C. One laboratory used the centrifuge adhesion test and tested precipitation ice and bulk water ice, while the other laboratory used a vertical shear test and tested only bulk water ice. The surfaces tested were bare aluminum and a commercial icephobic coating, with all samples prepared in the same manner. The results showed comparability in the general trends, surprisingly, with the greatest differences for bare aluminum surfaces at −10 °C. For bulk water ice, the vertical shear test resulted in systematically higher ice adhesion strength than the centrifugal adhesion test. The standard deviation depends on the surface type and seems to scale with the absolute value of the ice adhesion strength. The experiments capture the overall trends in which the ice adhesion strength surprisingly decreases from −10 to −18 °C for aluminum and is almost independent of temperature for a commercial icephobic coating. In addition, the study captures similar trends in the effect of ice type on ice adhesion strength as previously reported and substantiates that ice formation is a key parameter for ice adhesion mechanisms. Repeatability should be considered a key parameter in determining the ideal ice adhesion test method. View Full-Text
Keywords: ice adhesion; interlaboratory; ice removal; ice type; anti-icing; icephobic ice adhesion; interlaboratory; ice removal; ice type; anti-icing; icephobic
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MDPI and ACS Style

Rønneberg, S.; Zhuo, Y.; Laforte, C.; He, J.; Zhang, Z. Interlaboratory Study of Ice Adhesion Using Different Techniques. Coatings 2019, 9, 678. https://doi.org/10.3390/coatings9100678

AMA Style

Rønneberg S, Zhuo Y, Laforte C, He J, Zhang Z. Interlaboratory Study of Ice Adhesion Using Different Techniques. Coatings. 2019; 9(10):678. https://doi.org/10.3390/coatings9100678

Chicago/Turabian Style

Rønneberg, Sigrid; Zhuo, Yizhi; Laforte, Caroline; He, Jianying; Zhang, Zhiliang. 2019. "Interlaboratory Study of Ice Adhesion Using Different Techniques" Coatings 9, no. 10: 678. https://doi.org/10.3390/coatings9100678

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