Environmental dependence of ultra-low wear behavior of polytetrafluoroethylene (PTFE) and alumina composites suggests tribochemical mechanisms

被引：135
|
作者：
Krick, Brandon A. [1 ]
Ewin, Jeffrey J. [1 ]
Blackman, Gregory S. [2 ]
Junk, Christopher P. [3 ]
Sawyer, W. Gregory [1 ]
机构：
[1] Univ Florida, Dept Mech & Aerosp Engn, Gainesville, FL 32611 USA
[2] DuPont Nanocomposite Technol, Wilmington, DE 19803 USA
[3] DuPont Cent Res & Dev, Wilmington, DE 19803 USA
来源：
TRIBOLOGY INTERNATIONAL | 2012年 / 51卷
关键词：
Polytetrafluoroethylene; Wear; Tribochemistry; Environment; TRIBOLOGICAL BEHAVIOR; FILLED POLYTETRAFLUOROETHYLENE; UNCERTAINTY ANALYSIS; FRICTION; NANOCOMPOSITES; RESISTANCE; NANOPARTICLES;
D O I：
10.1016/j.triboint.2012.02.015
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Composites of polytetrafluoroethylene (PTFE) and alpha phase alumina produce wear rates that can be nearly five orders of magnitude less than the wear rates of virgin PTFE. The mechanism for this reduction in wear cannot be explained solely by mechanical effects. The influences of oxygen and humidity on the tribological performance of both unfilled PTFE and FIFE/alumina composites were studied. The wear rate of PTFE/alumina composites is dependent on the humidity of the environment; this dependence suggests a tribochemical mechanism is responsible for the ultra-low wear behavior of these PTFE/alumina composites. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：42 / 46
页数：5
相关论文
共 14 条
  • [1] Tribofilm Formation and Run-In Behavior in Ultra-Low-Wearing Polytetrafluoroethylene (PTFE) and Alumina Nanocomposites
    Krick, Brandon A.
    Ewin, Jeffrey J.
    McCumiskey, Edward J.
    TRIBOLOGY TRANSACTIONS, 2014, 57 (06) : 1058 - 1065
  • [2] In Vacuo Tribological Behavior of Polytetrafluoroethylene (PTFE) and Alumina Nanocomposites: The Importance of Water for Ultralow Wear
    Pitenis, Angela A.
    Ewin, Jeffrey J.
    Harris, Kathryn L.
    Sawyer, W. Gregory
    Krick, Brandon A.
    TRIBOLOGY LETTERS, 2014, 53 (01) : 189 - 197
  • [3] The Competing Effects of Counterface Peaks and Valleys on the Wear and Transfer of Ultra-Low Wear Alumina-PTFE
    Ye, Jiaxin
    Tao, Bo
    Sun, Wei
    Haidar, Diana R.
    Alam, Kazi I.
    Liu, Kun
    Burris, David L.
    TRIBOLOGY LETTERS, 2018, 66 (01)
  • [4] In Vacuo Tribological Behavior of Polytetrafluoroethylene (PTFE) and Alumina Nanocomposites: The Importance of Water for Ultralow Wear
    Angela A. Pitenis
    Jeffrey J. Ewin
    Kathryn L. Harris
    W. Gregory Sawyer
    Brandon A. Krick
    Tribology Letters, 2014, 53 : 189 - 197
  • [5] The limit of adhesive debris retention: A case study using ultra-low wear Alumina-PTFE
    Sun, Wei
    Song, Qingrui
    Liu, Kun
    Liu, Xiaojun
    Ye, Jiaxin
    WEAR, 2022, 496-497
  • [6] Transfer Film Tenacity: A Case Study Using Ultra-Low-Wear Alumina-PTFE
    Ye, J.
    Moore, A. C.
    Burris, D. L.
    TRIBOLOGY LETTERS, 2015, 59 (03) : 1 - 11
  • [7] Transfer film evolution and its role in promoting ultra-low wear of a PTFE nanocomposite
    Ye, J.
    Khare, H. S.
    Burris, D. L.
    WEAR, 2013, 297 (1-2) : 1095 - 1102
  • [8] Peculiarities of tribological behavior of low-filled composites based on polytetrafluoroethylene (PTFE) and molybdenum disulfide
    Aderikha, V. N.
    Krasnov, A. P.
    Shapovalov, V. A.
    Golub, A. S.
    WEAR, 2014, 320 : 135 - 142
  • [9] Ultra-low Friction and Wear of Phenolic Composites Reinforced with Halloysite Nanotubes
    Han, Yingying
    He, Ren
    Li, Huan
    Pei, Xianqiang
    Zhang, Ga
    TRIBOLOGY INTERNATIONAL, 2025, 204
  • [10] Tribochemical induced wear and ultra-low friction of superhard ta-C coatings
    Makowski, Stefan
    Schaller, Frank
    Weihnacht, Volker
    Englberger, Gregor
    Becker, Michael
    WEAR, 2017, 392 : 139 - 151
12