| contributor author | Kakudo, Hiromitsu | |
| contributor author | Takada, Satoshi | |
| contributor author | Hirayama, Tomoko | |
| date accessioned | 2023-11-29T19:39:11Z | |
| date available | 2023-11-29T19:39:11Z | |
| date copyright | 5/19/2023 12:00:00 AM | |
| date issued | 5/19/2023 12:00:00 AM | |
| date issued | 2023-05-19 | |
| identifier issn | 0742-4787 | |
| identifier other | trib_145_10_101702.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4294930 | |
| description abstract | The friction characteristics of SUS440C-Si3N4 lubricated by polytetrafluoroethylene (PTFE) under cryogenic environment have not been researched well. The lubrication mechanisms in such friction condition need to be clarified to improve the fidelity of performance modeling for ball bearings used in liquid rocket engine turbopumps. This research experimentally investigated the friction coefficient of bearing materials via PTFE lubrication under cryogenic environment to clarify the friction characteristics of cryogenic turbopump ball bearings. These experiments revealed the dependence of the contact pressure on the friction coefficient. By several analyses, it was found that lower friction and better wear-resistance characteristics were caused by PTFE film that strongly adhered to metal fluoride formed on the surface of SUS440C due to moderate friction energy. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Friction Characteristics of SUS440C/Si3N4 Lubricated by Polytetrafluoroethylene Under Cryogenic Environment | |
| type | Journal Paper | |
| journal volume | 145 | |
| journal issue | 10 | |
| journal title | Journal of Tribology | |
| identifier doi | 10.1115/1.4062486 | |
| journal fristpage | 101702-1 | |
| journal lastpage | 101702-10 | |
| page | 10 | |
| tree | Journal of Tribology:;2023:;volume( 145 ):;issue: 010 | |
| contenttype | Fulltext | |