Abstract
Sandfish (Scincus scincus), which is kind of reptile living in desert, can move in sand like swimming. It is thought that since sandfish has a low friction scales, it is able to do that. However, the mechanism of the low friction property of the scales is not yet known. In this study, a micro structure of sandfish's scales was investigated, and their tribological properties under (IN loads were measured. Cuticle-like structure, which is observed on human hairs, appeared on the scales. Detected elements on the scales were O, C, N, and S. Ca and Si, which are elements of hard shells and bones, were not detected. A contact angle of sandfish's scale was around 90°, and polytetrafluoroethylene (PTFE) and polyimide (PI) had contact angles of approximately 110° and 60°, respectively. However, an adhesion force of sandfish's scales was lower than those of PTFE and PI. With the exception of a few frictional conditions, a friction force of sandfish's scales was lower than those of PTFE and PI, which would result from the low adhesion force of sandfish's scales.
| Original language | English |
|---|---|
| Pages (from-to) | 832-840 |
| Number of pages | 9 |
| Journal | Toraibarojisuto/Journal of Japanese Society of Tribologists |
| Volume | 58 |
| Issue number | 11 |
| Publication status | Published - 2013 |
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Keywords
- Adhesion force
- Biomimetics
- Friction coefficient
- Microlribology
- Scanning electron microscopy
- Wettability
ASJC Scopus subject areas
- Mechanical Engineering
- Mechanics of Materials
- Materials Chemistry
- Surfaces, Coatings and Films
- Surfaces and Interfaces
Cite this
Tribological properties of sandfish skink's scale under micro loads - Observation of micro structure and tribological properties under μnload. / Kinoshita, Hiroshi; Masayasu, Ryosuke; Fujii, Masahiro.
In: Toraibarojisuto/Journal of Japanese Society of Tribologists, Vol. 58, No. 11, 2013, p. 832-840.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Tribological properties of sandfish skink's scale under micro loads - Observation of micro structure and tribological properties under μnload
AU - Kinoshita, Hiroshi
AU - Masayasu, Ryosuke
AU - Fujii, Masahiro
PY - 2013
Y1 - 2013
N2 - Sandfish (Scincus scincus), which is kind of reptile living in desert, can move in sand like swimming. It is thought that since sandfish has a low friction scales, it is able to do that. However, the mechanism of the low friction property of the scales is not yet known. In this study, a micro structure of sandfish's scales was investigated, and their tribological properties under (IN loads were measured. Cuticle-like structure, which is observed on human hairs, appeared on the scales. Detected elements on the scales were O, C, N, and S. Ca and Si, which are elements of hard shells and bones, were not detected. A contact angle of sandfish's scale was around 90°, and polytetrafluoroethylene (PTFE) and polyimide (PI) had contact angles of approximately 110° and 60°, respectively. However, an adhesion force of sandfish's scales was lower than those of PTFE and PI. With the exception of a few frictional conditions, a friction force of sandfish's scales was lower than those of PTFE and PI, which would result from the low adhesion force of sandfish's scales.
AB - Sandfish (Scincus scincus), which is kind of reptile living in desert, can move in sand like swimming. It is thought that since sandfish has a low friction scales, it is able to do that. However, the mechanism of the low friction property of the scales is not yet known. In this study, a micro structure of sandfish's scales was investigated, and their tribological properties under (IN loads were measured. Cuticle-like structure, which is observed on human hairs, appeared on the scales. Detected elements on the scales were O, C, N, and S. Ca and Si, which are elements of hard shells and bones, were not detected. A contact angle of sandfish's scale was around 90°, and polytetrafluoroethylene (PTFE) and polyimide (PI) had contact angles of approximately 110° and 60°, respectively. However, an adhesion force of sandfish's scales was lower than those of PTFE and PI. With the exception of a few frictional conditions, a friction force of sandfish's scales was lower than those of PTFE and PI, which would result from the low adhesion force of sandfish's scales.
KW - Adhesion force
KW - Biomimetics
KW - Friction coefficient
KW - Microlribology
KW - Scanning electron microscopy
KW - Wettability
UR - http://www.scopus.com/inward/record.url?scp=84893273004&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84893273004&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:84893273004
VL - 58
SP - 832
EP - 840
JO - Toraibarojisuto/Journal of Japanese Society of Tribologists
JF - Toraibarojisuto/Journal of Japanese Society of Tribologists
SN - 0915-1168
IS - 11
ER -