This article is a correction to:
Effect of Polydimethylsiloxane Oil Lubrication on the Friction of Cross-Country UHMWPE Ski Bases on Snow
Audun Formo Buene
Sondre Bergtun Auganæs
Alex Klein-Paste- Department of Civil and Environmental Engineering, Norwegian University of Science and Technology, Trondheim, Norway
A corrigendum on
Buene AF, Auganæs SB and Klein-Paste A. (2022) Front. Sports Act. Living 4:894250. doi: 10.3389/fspor.2022.894250
Text Correction
In the published article, there was an error. The average amount of applied silicone oil to each ski was reported to be 5 mg, while the correct amount was 50 mg.
A correction has been made to Materials and Methods, Characterization and Measurements, paragraph 5. The sentence previously stated:
“[…] Then the sole was wiped with Fiberlene (Swix, Norway) paper until no more oil was visually removed, leaving an average of 5 mg of silicone oil, regardless of viscosity. Over the area of one ski, this equals 6 µg/cm2 or a 60 nm thick silicone oil layer assuming a uniform distribution. […]”
The corrected sentence appears below:
“[…] Then the sole was wiped with Fiberlene (Swix, Norway) paper until no more oil was visually removed, leaving an average of 50 mg of silicone oil, regardless of viscosity. Over the area of one ski, this equals 60 µg/cm2 or a 600 nm thick silicone oil layer assuming a uniform distribution. […]”
A correction has been made to Discussion, Friction measurements, paragraph 4. The sentence previously stated:
“[…] the thickness of the oil layer is calculated from the amount of oil applied on the ski and is 60 nm. Under no-slip conditions, which is highly unlikely considering the icephobic nature of silicone oils, the calculated shear force is 1.90 kN. This corresponds to a very high friction coefficient of 4.75, meaning this system must have significant wall-slip. Starting with a realistic friction coefficient for this system of 0.08, the shear force would equate to 32 N assuming shear is the sole resistance mechanism, and this would require a wall-slip factor of 0.98.”
The corrected sentence appears below:
“[…] the thickness of the oil layer is calculated from the amount of oil applied on the ski and is 600 nm. Under no-slip conditions, which is highly unlikely considering the icephobic nature of silicone oils, the calculated shear force is 190 N. This corresponds to a very high friction coefficient of 0.475, meaning this system must have significant wall-slip. Starting with a realistic friction coefficient for this system of 0.08, the shear force would equate to 32 N assuming shear is the sole resistance mechanism, and this would require a wall-slip factor of 0.83.”
The authors apologize for this error and state that this does not change the scientific conclusions of the article in any way. The original article has been updated.
Keywords: silicone oils, ski-snow friction, linear tribometer, skiing, lubrication
Citation: Buene AF, Auganæs SB and Klein-Paste A (2023) Corrigendum: Effect of polydimethylsiloxane oil lubrication on the friction of cross-country UHMWPE ski bases on snow. Front. Sports Act. Living 5:1203992. doi: 10.3389/fspor.2023.1203992
Received: 11 April 2023; Accepted: 17 April 2023;
Published: 28 April 2023.
Edited and Reviewed by: Laura Gastaldi, Polytechnic University of Turin, Italy
© 2023 Buene, Auganæs and Klein-Paste. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
*Correspondence: Audun Formo Buene audun.f.buene@ntnu.no