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    Revealing the Tribochemical Evolution of PTFE Transfer Films During Ambient Aging

    Source: Journal of Tribology:;2025:;volume( 147 ):;issue: 011::page 111402-1
    Author:
    Wei, Jiang
    ,
    Liu, Kun
    ,
    Liu, Xiaojun
    ,
    Feng, Yi
    ,
    Ye, Jiaxin
    DOI: 10.1115/1.4068111
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Previous studies have established the critical role of tribochemistry in the formation of protective transfer films in dry friction applications of polytetrafluoroethylene (PTFE) composites. However, the specific mechanisms driving these reactions remain incompletely understood. This research combines ambient aging with periodic tribochemical analysis to clarify the chemical evolution occurring in PTFE transfer films. Infrared spectroscopy revealed gradual oxidation in the films, and further interrupted thrust washer experiments on the oxidized tribofilms confirmed that oxidation does not significantly reduce wear in PTFE. These findings reinforce the idea of a positive feedback loop between tribochemical activity and filler reinforcement in PTFE composites.
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      Revealing the Tribochemical Evolution of PTFE Transfer Films During Ambient Aging

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4307974
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    contributor authorWei, Jiang
    contributor authorLiu, Kun
    contributor authorLiu, Xiaojun
    contributor authorFeng, Yi
    contributor authorYe, Jiaxin
    date accessioned2025-08-20T09:14:56Z
    date available2025-08-20T09:14:56Z
    date copyright4/3/2025 12:00:00 AM
    date issued2025
    identifier issn0742-4787
    identifier othertrib-24-1465.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4307974
    description abstractPrevious studies have established the critical role of tribochemistry in the formation of protective transfer films in dry friction applications of polytetrafluoroethylene (PTFE) composites. However, the specific mechanisms driving these reactions remain incompletely understood. This research combines ambient aging with periodic tribochemical analysis to clarify the chemical evolution occurring in PTFE transfer films. Infrared spectroscopy revealed gradual oxidation in the films, and further interrupted thrust washer experiments on the oxidized tribofilms confirmed that oxidation does not significantly reduce wear in PTFE. These findings reinforce the idea of a positive feedback loop between tribochemical activity and filler reinforcement in PTFE composites.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleRevealing the Tribochemical Evolution of PTFE Transfer Films During Ambient Aging
    typeJournal Paper
    journal volume147
    journal issue11
    journal titleJournal of Tribology
    identifier doi10.1115/1.4068111
    journal fristpage111402-1
    journal lastpage111402-7
    page7
    treeJournal of Tribology:;2025:;volume( 147 ):;issue: 011
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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