Anisotropy of the Kinetic Friction on a Single Crystal of Ice
Abstract Measurements were made of the kinetic friction which occurs when a tungsten carbide ball slides in various directions on the surface of a single crystal of ice, the track width produced on the surface was also measured. Anisotropies were detected in both the friction coefficient and the tra...
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Cambridge University Press (CUP)
1978
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Online Access: | http://dx.doi.org/10.1017/s0022143000033773 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000033773 |
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crcambridgeupr:10.1017/s0022143000033773 2024-03-03T08:46:08+00:00 Anisotropy of the Kinetic Friction on a Single Crystal of Ice Tusima, Katutosi 1978 http://dx.doi.org/10.1017/s0022143000033773 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000033773 en eng Cambridge University Press (CUP) Journal of Glaciology volume 21, issue 85, page 661-668 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 1978 crcambridgeupr https://doi.org/10.1017/s0022143000033773 2024-02-08T08:37:11Z Abstract Measurements were made of the kinetic friction which occurs when a tungsten carbide ball slides in various directions on the surface of a single crystal of ice, the track width produced on the surface was also measured. Anisotropies were detected in both the friction coefficient and the track width. The track width φ was at a maximum when the ball was slid normal to the basal plane and a minimum when it was moving parallel to (0001) in the temperature range —5 to —30°C. Although the friction coefficient was at a minimum when slid normal to (0001) and maximum in parallel to (0001) at temperatures of —19°C and below, this relation was found to be reversed at temperatures of —10°C and above. Anisotropy in track width can be explained in terms of the amount by which a slip system contributes to deformation in a specimen. However, our understanding of frictional anisotropy calls for knowledge of the ploughing strength p defined by the adhesion theory of friction. It was found that p reached a maximum in parallel to (0001) and a minimum normal to (0001) and that the frictional anisotropy on (0001) was influenced by the value . A remarkable frictional anisotropy was also observed on the surface inclined to the basal plane at 30°; the maximum friction coefficient was twice the minimum, whereas the maximum track width was only 1.3 times the minimum. Article in Journal/Newspaper Journal of Glaciology Cambridge University Press Journal of Glaciology 21 85 661 668 |
institution |
Open Polar |
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Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes Tusima, Katutosi Anisotropy of the Kinetic Friction on a Single Crystal of Ice |
topic_facet |
Earth-Surface Processes |
description |
Abstract Measurements were made of the kinetic friction which occurs when a tungsten carbide ball slides in various directions on the surface of a single crystal of ice, the track width produced on the surface was also measured. Anisotropies were detected in both the friction coefficient and the track width. The track width φ was at a maximum when the ball was slid normal to the basal plane and a minimum when it was moving parallel to (0001) in the temperature range —5 to —30°C. Although the friction coefficient was at a minimum when slid normal to (0001) and maximum in parallel to (0001) at temperatures of —19°C and below, this relation was found to be reversed at temperatures of —10°C and above. Anisotropy in track width can be explained in terms of the amount by which a slip system contributes to deformation in a specimen. However, our understanding of frictional anisotropy calls for knowledge of the ploughing strength p defined by the adhesion theory of friction. It was found that p reached a maximum in parallel to (0001) and a minimum normal to (0001) and that the frictional anisotropy on (0001) was influenced by the value . A remarkable frictional anisotropy was also observed on the surface inclined to the basal plane at 30°; the maximum friction coefficient was twice the minimum, whereas the maximum track width was only 1.3 times the minimum. |
format |
Article in Journal/Newspaper |
author |
Tusima, Katutosi |
author_facet |
Tusima, Katutosi |
author_sort |
Tusima, Katutosi |
title |
Anisotropy of the Kinetic Friction on a Single Crystal of Ice |
title_short |
Anisotropy of the Kinetic Friction on a Single Crystal of Ice |
title_full |
Anisotropy of the Kinetic Friction on a Single Crystal of Ice |
title_fullStr |
Anisotropy of the Kinetic Friction on a Single Crystal of Ice |
title_full_unstemmed |
Anisotropy of the Kinetic Friction on a Single Crystal of Ice |
title_sort |
anisotropy of the kinetic friction on a single crystal of ice |
publisher |
Cambridge University Press (CUP) |
publishDate |
1978 |
url |
http://dx.doi.org/10.1017/s0022143000033773 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000033773 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology volume 21, issue 85, page 661-668 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000033773 |
container_title |
Journal of Glaciology |
container_volume |
21 |
container_issue |
85 |
container_start_page |
661 |
op_container_end_page |
668 |
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1792502068106231808 |