Superlubricity in Gemini HydrogelsSource: Journal of Tribology:;2016:;volume( 138 ):;issue: 004::page 42103Author:Pitenis, Angela A.
,
Manuel Urueأ±a, Juan
,
Cooper, Andrew C.
,
Angelini, Thomas E.
,
Gregory Sawyer, W.
DOI: 10.1115/1.4032890Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Gemini hydrogels have repeatedly produced low friction under conditions generally not thought to be favorable to superlubricity: low sliding speeds, low contact pressures, macroscopic contact areas, and room temperature aqueous environments. A proposed explanation for this unique behavior is that thermal fluctuations at the interface are sufficient to separate the surfaces, with solvent (water) shearing in this region being the main source of dissipation. In this paper, we demonstrate that very soft and correspondingly large mesh size Gemini hydrogels show superlubricity with the lowest measured friction coefficient being خ¼â€‰= 0.0013 آ±â€‰0.0006.
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| contributor author | Pitenis, Angela A. | |
| contributor author | Manuel Urueأ±a, Juan | |
| contributor author | Cooper, Andrew C. | |
| contributor author | Angelini, Thomas E. | |
| contributor author | Gregory Sawyer, W. | |
| date accessioned | 2017-05-09T01:33:57Z | |
| date available | 2017-05-09T01:33:57Z | |
| date issued | 2016 | |
| identifier issn | 0742-4787 | |
| identifier other | trib_138_04_042103.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/162719 | |
| description abstract | Gemini hydrogels have repeatedly produced low friction under conditions generally not thought to be favorable to superlubricity: low sliding speeds, low contact pressures, macroscopic contact areas, and room temperature aqueous environments. A proposed explanation for this unique behavior is that thermal fluctuations at the interface are sufficient to separate the surfaces, with solvent (water) shearing in this region being the main source of dissipation. In this paper, we demonstrate that very soft and correspondingly large mesh size Gemini hydrogels show superlubricity with the lowest measured friction coefficient being خ¼â€‰= 0.0013 آ±â€‰0.0006. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Superlubricity in Gemini Hydrogels | |
| type | Journal Paper | |
| journal volume | 138 | |
| journal issue | 4 | |
| journal title | Journal of Tribology | |
| identifier doi | 10.1115/1.4032890 | |
| journal fristpage | 42103 | |
| journal lastpage | 42103 | |
| identifier eissn | 1528-8897 | |
| tree | Journal of Tribology:;2016:;volume( 138 ):;issue: 004 | |
| contenttype | Fulltext |