Rare Metals

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Hydrophobicity and tribological properties of Al2O3/PTFE composite coating

  • Ruo-Nan Ji
  • Chen-Xu Liu
  • Jin ZhangEmail author
  • Shu-Guang Zhang
  • Le Zhang
  • Yong Lian


Al2O3/polytetrafluoroethylene (PTFE) composite coating was prepared on titanium alloy by cathode plasma electrolytic deposition (CPED) and impregnation method, to improve the hydrophobicity and tribological properties. Scanning electron microscopy (SEM) and energy-dispersive spectroscopy (EDS) analysis of the coating indicate that PTFE penetrates into the interior of the coating and is well bonded to titanium alloy substrate by cross-linking with Al2O3 ceramic coating. The contact angles were measured by contact angle measurement, and the tribological properties of the composite coating were evaluated by sliding wear test. The surface of the composite coating is found to possess good hydrophobicity with a water contact angle of 140°. The results also indicate an improved tribological properties of Al2O3/PTFE composite coating at room temperature with a steady friction coefficient as low as 0.05. The self-lubricating anti-wear composite coating is expected to solve fouling problems and poor wear resistance of titanium alloys.


Titanium alloy Al2O3 Cathode plasma electrolytic deposition PTFE Hydrophobicity Wear resistance 



This study was financially supported by the National Natural Science Foundation of China (No. 51271030).


  1. [1]
    Ramesh S, Karunamoorthy L, Palanikumar K. Measurement and analysis of surface roughness in turning of aerospace titanium alloy (gr5). Measurement. 2012;45(5):1266.CrossRefGoogle Scholar
  2. [2]
    Nakai M, Niinomi M, Zhao XF, Zhao X. Self-adjustment of Young’s modulus in biomedical titanium alloys during orthopaedic operation. Mater Lett. 2011;65(4):688.CrossRefGoogle Scholar
  3. [3]
    Hao YL, Li SJ, Yang R. Biomedical titanium alloys and their additive manufacturing. Rare Met. 2016;35(9):661.CrossRefGoogle Scholar
  4. [4]
    Spies H. Surface engineering of aluminium and titanium alloys: an overview. Surf Eng. 2010;26(1–2):126.CrossRefGoogle Scholar
  5. [5]
    Ren J, Liu XB, Lu XL, Yu PC, Zhu GX, Chen Y, Xu D. Microstructure and tribological properties of self-lubricating antiwear composite coating on Ti6Al4V alloy. Surf Eng. 2017;33(1):20.CrossRefGoogle Scholar
  6. [6]
    Xiao GF, Huo JZ, Peng FG, Mei Z, Wen JM. Phase fraction evolution in hot working of a two-phase titanium alloy: experiment and modeling. Rare Met. 2017;36(10):769.CrossRefGoogle Scholar
  7. [7]
    Zhou HQ, Wu HC, Lv JC, Fang M. Fluoropolymer synergistic coating preparation process for iron and steel. China Patent; CN 1296516 C. 2007.Google Scholar
  8. [8]
    Tillmann W, Momeni S, Hoffmann F. A study of mechanical and tribological properties of self-lubricating TiAlVN coatings at elevated temperatures. Tribol Int. 2013;66(7):324.CrossRefGoogle Scholar
  9. [9]
    Lian F, Tan J, Zhang H. Preparation of superhydrophobic titanium alloy surface and its antifouling of halobios. Rare Met Mat Eng. 2014;43(9):2267.Google Scholar
  10. [10]
    Cheng YT, Rodak DE, Wong CA, Hayden CA. Effects of micro- and nano-structures on the self-cleaning behaviour of lotus leaves. Nanotechnology. 2006;17(17):1359.CrossRefGoogle Scholar
  11. [11]
    Toumi S, Fouvry S, Salvia M. Prediction of sliding speed and normal force effects on friction and wear rate evolution in a dry oscillating-fretting PTFE/Ti-6Al-4V contact. Wear. 2017;376:1365.CrossRefGoogle Scholar
  12. [12]
    Liew KW, Chia SY, Kok CK, Low KO. Evaluation on tribological design coatings of Al2O3, Ni-P-PTFE and MoS2 on aluminium Alloy 7075 under oil lubrication. Mater Des. 2013;48(2):77.CrossRefGoogle Scholar
  13. [13]
    Subramanian K, Nagarajan R, Baets PD, Saravanasankar S, Thangiah W, Sukumaran J. Eco-friendly mono-layered PTFE blended polymer composites for dry sliding tribo-systems. Tribol Int. 2016;102:569.CrossRefGoogle Scholar
  14. [14]
    Piedade AP, Nunes J, Vieira MT. Thin films with chemically graded functionality based on fluorine polymers and stainless steel. Acta Biomater. 2008;4(4):1073.CrossRefGoogle Scholar
  15. [15]
    Iwamori S. Adhesion and friction properties of fluorocarbon polymer thin films coated onto metal substrates. Key Eng Mat. 2008;384(3):311.CrossRefGoogle Scholar
  16. [16]
    Wang Z, Wu L, Qi Y, Cai W, Jiang Z. Self-lubricating Al2O3/PTFE composite coating formation on surface of aluminium alloy. Surf Coat Technol. 2010;204(20):3315.CrossRefGoogle Scholar
  17. [17]
    Quan C, He Y. Microstructure and characterization of a novel cobalt coating prepared by cathode plasma electrolytic deposition. Appl Surf Sci. 2015;353:1320.CrossRefGoogle Scholar
  18. [18]
    Paulmier T, Bell JM, Fredericks PM. Development of a novel cathodic plasma/electrolytic deposition technique: part 2: physico-chemical analysis of the plasma discharge. Surf Coat Technol. 2007;201(21):8771.CrossRefGoogle Scholar
  19. [19]
    Habibi A, Khoie SMM, Mahboubi F, Urgen M. Fast synthesis of turbostratic carbon thin coating by cathodic plasma electrolysis. Thin Solid Films. 2017;621:253.CrossRefGoogle Scholar
  20. [20]
    Zheng L, Li D, He CC, Cheng QQ, Deng ZH, Tonng SH. Microstructure of Ti-Mo-Si coating laser cladding on titanium alloy. Chin J Rare Met. 2016;40(11):1904.Google Scholar
  21. [21]
    Zhang Y, Chen C, Chen W, Cheng H, Wang L. A novel aqueous plasma electrolysis for carbon fiber. Chem Eng J. 2016;304:426.CrossRefGoogle Scholar
  22. [22]
    Wang P, Deng S, He Y, Liu C, Zhang J. Influence of polyethylene glycol on cathode plasma electrolytic depositing Al2O3 anti-oxidation coatings. Ceram Int. 2016;42(7):8229.CrossRefGoogle Scholar
  23. [23]
    Wang P, He YD, Deng SJ, Zhang J. Porous α-Al2O3 thermal barrier coatings with dispersed Pt particles prepared by cathode plasma electrolytic deposition. Int J Min Met Mater. 2016;23(1):92.CrossRefGoogle Scholar
  24. [24]
    Sarkar MK, Bal K, He F, Fan J. Design of an outstanding super-hydrophobic surface by electro-spinning. Appl Surf Sci. 2011;257(15):7003.CrossRefGoogle Scholar
  25. [25]
    Zhang F, Chen S, Dong L, Lei Y, Tao L, Yin Y. Preparation of superhydrophobic films on titanium as effective corrosion barriers. Appl Surf Sci. 2011;257(7):2587.CrossRefGoogle Scholar
  26. [26]
    Barthwal S, Kim YS, Lim SH. Fabrication of amphiphobic surface by using titanium anodization for large-area three-dimensional substrates. J Colloid Interf Sci. 2013;400(12):123.CrossRefGoogle Scholar
  27. [27]
    Gnedenkov AS, Sinebryukhov SL, Mashtalyar DV, Gnedenkov SV. Features of the corrosion processes development at the magnesium alloys surface. Surf Coat Technol. 2013;225(225):112.CrossRefGoogle Scholar
  28. [28]
    Gnedenkov SV, Sinebryukhov SL, Mashtalyar DV, Egorkin VS, Sidorova MV, Gnedenkov AS. Composite polymer-containing protective coatings on magnesium alloy MA8. Corros Sci. 2014;85(4):52.CrossRefGoogle Scholar
  29. [29]
    Michels AF, Soave PA, Nardi J, Jardim PLG, Teixeira SR, Weibel DE. Adjustable, (super) hydrophobicity by e-beam deposition of nanostructured PTFE on textured silicon surfaces. J Mater Sci. 2016;51(3):1316.CrossRefGoogle Scholar
  30. [30]
    Кpaгeлвcки ЙB. Principles of Friction and Wear. Edited by Wang YL. Beijing: Mechanical Industry Press; 1982. 1.Google Scholar

Copyright information

© The Nonferrous Metals Society of China and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Institute of Advanced Materials and TechnologyUniversity of Science and Technology BeijingBeijingChina
  2. 2.Beijing Key Laboratory for Corrosion Erosion and Surface TechnologyBeijingChina

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