본문 바로가기
KERD
논문KCI 등재

PEMFC 금속분리판의 내식성에 미치는 DLC 코팅층의 두께 및 결함의 영향

Effects of Thickness and Defects of DLC Coating Layer on Corrosion Resistance of Metallic Bipolar Plates of PEMFCs

2

조회

0

다운로드

0

인용

0

참고문헌

키워드

주제분류금속공학

초록

DLC coatings have been widely applied in industrial fields that require high corrosion resistance due totheir excellent mechanical characteristics and chemical stability. In this research, effects of DLC coatingthickness and defects on corrosion resistance were investigated for application of metallic bipolar plates inpolymer membrane electrolyte fuel cells (PEMFCs). Results revealed that a DLC coating thickness of0.7 μm could lead to a defect size reduction of about 75.9% compared to that of 0.3 μm.As a result ofpotentiodynamic polarization experiments, the current density under a potential of 0.6 V was measured tobe less than 1 μA/cm2,which was an excellent value. Inparticular, the delamination ratio and the decreaserate of maximum pitting depth were up to 84.8% and 63.3%, respectively, with an increase in the DLCcoating thickness. These results demonstrate that DLC coating thickness and defects are factors that canaffect corrosion resistance of DLC coating and its substrate.

Abstract

DLC coatings have been widely applied in industrial fields that require high corrosion resistance due totheir excellent mechanical characteristics and chemical stability. In this research, effects of DLC coatingthickness and defects on corrosion resistance were investigated for application of metallic bipolar plates inpolymer membrane electrolyte fuel cells (PEMFCs). Results revealed that a DLC coating thickness of0.7 μm could lead to a defect size reduction of about 75.9% compared to that of 0.3 μm.As a result ofpotentiodynamic polarization experiments, the current density under a potential of 0.6 V was measured tobe less than 1 μA/cm2,which was an excellent value. Inparticular, the delamination ratio and the decreaserate of maximum pitting depth were up to 84.8% and 63.3%, respectively, with an increase in the DLCcoating thickness. These results demonstrate that DLC coating thickness and defects are factors that canaffect corrosion resistance of DLC coating and its substrate.

참고문헌 (48)

  1. D. K. Rajak, "Diamond-like carbon (Dlc) coatings: Classification, properties, and applications", Applied science, 11, pp.1~ (2021)[DOI]
  2. H. J. Park, "Effect of Fluorine Gas Addition for Improvement of Surface Wear Property of DLC Thin Film Depostied by using PECVD", Journal of Surface Science and Engineering, 54, pp.357~ (2021)[DOI]
  3. Z. Ren, "A borondoped diamond like carbon coating with high hardness and low friction coefficient", Wear, 436, pp.203031~ (2019)[DOI]
  4. W. J. Kim, "Effect of Si Addition on the Corrosion Resistance of Diamond-Like Carbon (DLC) Films", Corrosion Science and Technology, 4, pp.226~ (2005)
  5. T. Nagai, "Anticorrosion of DLC coating in acid solutions", Applied Surface Science, 552, pp.149373~ (2021)[DOI]
  6. J. G. Kim, "Electrochemical Evaluation of Si-Incroporated Diamond-Like Carbon (DLC) Coatings Deposited on STS 316L and Ti Alloy for Biomedical Applications", Corrosion Science and Technology, 6, pp.18~ (2007)
  7. A. Tyagi, "A critical review of diamond like carbon coating for wear resistance applications", International Journal of Refractory Metals & Hard Materials, 78, pp.107~ (2019)[DOI]
  8. J. S. Song, "The Effects of Interlayer on the DLC Coating", Corrosion Science and Technology, 10, pp.65~ (2011)[DOI]
  9. I. Alaefour, "Synthesis and Ex-Situ characterizations of diamond-like carbon coatings for metallic bipolar plates in PEM fuel cells", International Journal of Hydrogen Energy, 46, pp.11059~ (2021)[DOI]
  10. H. Dong, "Study on conductivity and corrosion resistance of N-doped and Cr", N co-doped DLC films on bipolar plates for PEMFC, 2020, pp.110, 108156~
  11. B. B. Han, "Corrosion Resistance of DLC Film-Coated SUS316L Steel Prepared by Ion Beam Enhanced Deposition", Advances in Materials Science and Engineering, 2019, pp.7480618~ (2019)[DOI]
  12. D. H. Shin, "Corrosion Characteristics of 316L Stainless Steel with Chloride Concentrations in Cathode Operating Conditions of Metallic Bipolar Plate for PEMFC", Corrosion Science and Technology, 20, pp.435~ (2021)[DOI]
  13. G. Hinds, "Towards more representative test methods for corrosion resistance of PEMFC metallic bipolar plates", International Journal of Hydrogen Energy, 40, pp.2785~ (2015)[DOI]
  14. H. S. Heo, "Electrochemical Characteristics of MMO(Ti", Ru)-Coated Titanium in a Cathode Environment of Polymer Electrolyte Membrane Fuel Cell, 2022, pp.21, 340~
  15. H. Wang, "Stainless steel as bipolar plate material for polymer electrolyte membrane fuel cells", Journal of Power Sources, 115, pp.243~ (2003)[DOI]
  16. C. Forsich, "Influence of the deposition temperature on mechanical and tribological properties of a-C:H:Si coatings on nitrided and postoxidized steel deposited by DC-PACVD", Surface and Coating Technology, 203, pp.521~ (2008)[DOI]
  17. F. D. Duminica, "Investigation of Cr(N)", DLC multilayer coatings elaborated by PVD for high wear resistance and low friction applications, 2018, pp.337, 396~
  18. D. Kek Merl, "Corrosion Properties of DLC-Coated Stainless Steel in Hanks Solution for Biomedical Applications", ECS Transactions, 35, pp.67~ (2011)[DOI]
  19. W. Mingge, "Effects of metal buffer layer for amorphous carbon film of 304 stainless steel bipolar plate", Thin Solid Films, 616, pp.507~ (2016)[DOI]
  20. T. Spalvins, "Nodular Growth in Thick-Sputtered Metallic Coatings", Journal of Vacuum Science & Technology, 11, pp.1186~ (1974)[DOI]
  21. P. Panjan, "Review of growth defects in thin films prepared by PVD techniques", Coatings, 10, pp.1~ (2020)[DOI]
  22. B. Haldar, "Identifying defects and problems in laser cladding and suggestions of some remedies for the same", Materialstoday : Proceedings, 5, pp.13090~ (2018)[DOI]
  23. X. Xie, "Structure and properties of TiSiCN coatings with different bias volages by arc ion plating", Surface Topography: Metrology and Properties, 6, pp.014003~ (2018)[DOI]
  24. F. A. Delfín, "Carbon based DLC films: Influence of the processing parameters on the structure and properties", Materia(Rio de Janeiro), 23, pp.1~8 (2018)[DOI]
  25. E. Bemporad, "Modelling, production and characterisation of duplex coatings (HVOF and PVD) on Ti-6Al-4V substrate for specific mechanical applications", Surface and Coating Technology, 201, pp.7652~ (2007)[DOI]
  26. P. Yi, "Impact of Film Thickness on Defects and the Graphitization of Nanothin Carbon Coatings Used for Metallic Bipolar Plates in Proton Exchange Membrane Fuel Cells", ACS Applied Materials and Interfaces, 10, pp.34561~ (2018)[DOI]
  27. J. Gunnars, "Thermal stresses in diamond coatings and their influence on coating wear and failure", Surface and Coating Technology, 80, pp.303~ (1996)[DOI]
  28. Y. Lifshitz, "Subplantation model for film growth from hyperthermal species", Physical Review Letters, 41, pp.10468~ (1990)[DOI]
  29. A. Dorner, "Diamond-like carbon-coated Ti6A14V: Influence of the coating thickness on the structure and the abrasive wear resistance", Wear, 249, pp.489~ (2001)[DOI]
  30. Z. H. Liu, "A study of microstructural and electrochemical properties of ultra-thin DLC coatings on AlTiC substrates deposited using the ion beam technique", Diamond & Related Materials, 8, pp.56~ (1999)[DOI]
  31. R. L. Boxman, "Macroparticle contamination in cathodic arc coatings: generation, transport and control", Surface and Coating Technology, 52, pp.39~ (1992)[DOI]
  32. L. Joska, "Properties of titanium-alloyed DLC layers for medical applications", Biomatter, 4, pp.1~ (2014)[DOI]
  33. E. Ilic, "A methodology for characterizing the electrochemical stability of DLC coated interlayers and interfaces", Surface and Coating Technology, 375, pp.402~ (2019)[DOI]
  34. Y. Yang, "Effects of passive films on corrosion resistance of uncoated SS316L bipolar plates for proton exchange membrane fuel cell application", Applied Surface Science, 320, pp.274~ (2014)[DOI]
  35. P. Yi, "Carbonbased coatings for metallic bipolar plates used in proton exchange membrane fuel cells", International Journal of Hydrogen Energy, 44, pp.6813~ (2019)[DOI]
  36. D. H. Shin, "Electrochemical characteristics and damage behaviour of DLC-coated 316L stainless steel for metallic bipolar plates of PEMFCs", Transactions of the IMF, 101, pp.308~ (2023)[DOI]
  37. Y. Pauleau, "Tribology of Diamond-Like Carbon Films: Fundamentals and Applications", pp.102~136 (2008), Springer
  38. M. S. Park, "Improved Adhesion of DLC Films by using a Nitriding Layer on AISI H13 Substrate", Journal of Surface Science and Engineering, 54, pp.307~ (2021)[DOI]
  39. A. H. S. Bueno, "Tribocorrosion evaluation of hydrogenated and silicon DLC coatings on carbon steel for use in valves, pistons and pumps in oil and gas industry", Wear, 394–395, pp.60~ (2018)[DOI]
  40. "ASTM G46-94, Standard Guide for Examination and Evaluation of Pitting Corrosion" (2018)[URL]
  41. D. H. Shin, "Electrochemical Characteristics and Damage Behavior in Cathode Operating Conditions of 316L Stainless Steel with Test Time and Applied Potential in Metallic Bipolar Plates for PEMFC", Corrosion Science and Technology, 20, pp.451~ (2021)[DOI]
  42. S. Guo, "Characterization of corrosion scale formed on 3Cr steel in CO2-saturated formation water", Corrosion Science, 110, pp.123~ (2016)[DOI]
  43. H. Parangusan, "A review of passivity breakdown on metal surfaces: influence of chloride-and sulfide-ion concentrations, temperature, and pH", Emergent Materials, 4, pp.1187~ (2021)[DOI]
  44. D. H. Shin, "Electrochemical Characteristics with NaCl Concentrations on Stainless Steels of Metallic Bipolar Plates for PEMFCs", Coatings, 13, pp.109~ (2023)[DOI]
  45. J. Zhang, "Chemical analysis of the initial corrosion layer on pipeline steels in simulated CO2-enhanced oil recovery brines", Corrosion Science, 65, pp.397~ (2012)[DOI]
  46. H. Kwon, "Investigation of the electrical contact behaviors in Au-to-Au thin-film contacts for RF MEMS switches", Journal of Micromechanics and Microengineering, 18, pp.1~ (2008)[DOI]
  47. F. Cheng, , Proc. 65th IEEE Holm Conference on Electrical Contacts, pp.250~256 (2019), The Institute of Electrical and Electronics Engineers Inc
  48. H. S. Heo, "Investigation of Electrochemical Characteristics and Interfacial Contact Resistance of TiN-Coated Titanium as Bipolar Plate in Polymer Electrolyte Membrane Fuel Cell", Coatings, 13, pp.123~ (2023)[DOI]

관련 논문AI추천

이 간행물의 다른 논문 (7건)