The Pressure-Viscosity Coefficient of a Perfluorinated Polyether Over a Wide Temperature RangeSource: Journal of Tribology:;2001:;volume( 123 ):;issue: 001::page 50Author:Scott Bair
DOI: 10.1115/1.1310160Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An unbranched perfluoropolyether is the current ball bearing lubricant for deep space flight. We report measurements of viscosity to moderate pressures for the calculation of pressure-viscosity coefficients to temperatures as low as −40°C. A free volume model predicts that a minimum pressure-viscosity coefficient exists at higher temperature. The existence of a minimum αo(T) is confirmed by viscometry at temperatures to 180°C.
keyword(s): Pressure , Temperature , Viscosity AND Measurement ,
|
Collections
Show full item record
| contributor author | Scott Bair | |
| date accessioned | 2017-05-09T00:06:06Z | |
| date available | 2017-05-09T00:06:06Z | |
| date copyright | January, 2001 | |
| date issued | 2001 | |
| identifier issn | 0742-4787 | |
| identifier other | JOTRE9-28694#50_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/125967 | |
| description abstract | An unbranched perfluoropolyether is the current ball bearing lubricant for deep space flight. We report measurements of viscosity to moderate pressures for the calculation of pressure-viscosity coefficients to temperatures as low as −40°C. A free volume model predicts that a minimum pressure-viscosity coefficient exists at higher temperature. The existence of a minimum αo(T) is confirmed by viscometry at temperatures to 180°C. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | The Pressure-Viscosity Coefficient of a Perfluorinated Polyether Over a Wide Temperature Range | |
| type | Journal Paper | |
| journal volume | 123 | |
| journal issue | 1 | |
| journal title | Journal of Tribology | |
| identifier doi | 10.1115/1.1310160 | |
| journal fristpage | 50 | |
| journal lastpage | 53 | |
| identifier eissn | 1528-8897 | |
| keywords | Pressure | |
| keywords | Temperature | |
| keywords | Viscosity AND Measurement | |
| tree | Journal of Tribology:;2001:;volume( 123 ):;issue: 001 | |
| contenttype | Fulltext |