Prof. LI, K.Y., Lawrence

Associate Head and Professor

  • Ph.D., The University of Birmingham, 1988
  • B.S., The University of Birmingham, 1982
Office
YEUNG-Y6713
Phone
(+852) 3442-8406
Email
mekyli@cityu.edu.hk
Research Interests
  • Surface coatings
  • Tribology
Links
Education
  • BSc (Mechanical Engineering) 1982, The University of Birmingham, UK
  • PhD (Mechanical Engineering) 1988, The University of Birmingham, UK
Professional Experience
  • Research Associate, National Engineering Laboratory/ The University of Birmingham (1984-1987):- R&D work in water-based axial piston pump to be used in North Sea underwater oil rig engineering work
  • Automation Consultant, Inco Alloys Ltd., Hereford, UK (1987-1989):- Automation in nickel-based alloys production work
  • ACARL (2000-present):- With about HK$20M support from the HKSAR-ITC and industry the Advanced Coatings Applied Research Laboratory (ACARL) was planned and established at CityU. The range of research work includes superhard nanocomposite coating, friction reduction tribological films and surface engineering. The ACARL team also focuses on tackling industrial-based problems. As a result, the team continues to secure Innovation and Technology Fund industrial based projects from the ITC, HKSAR. Contracted research works from International renowned companies such as GM, SKF, Johnson Electric, etc. were also conducted.
  • IEA-AMT-IA (since 2012):- Lawrence was invited to join the "Implementing Agreement on Advanced Materials for Transportation (AMT IA)" which is part of the International Energy Agency (IEA). The focus is to facilitate the introduction of new materials technologies that have the potential to significantly reduce oil consumption, enhance energy security, protect the environment, and promotes economic development of participating countries (extracted from AMT-IA Strategic Plan 2013-2018).
Editorship
  • Member of Editorial Board - Proc IMechE, Part J, Journal of Engineering Tribology
  • Member of Editorial Board - International Journal of Surface Science and Engineering
Publications
  • Q.Z.Wang, F.Zhou, X.D.Ding, Z.F.Zhou, C.D.Wang, W.J.Zhang, L.K.Y.Li, S.T.Lee, “Nicrostructure and water-lubricated friction and wear properties of CrN(C) coatings with different carbon contents”, APPLIED SURFACE SCIENCE (2013) in press
  • P.W.Shum, Z.F.Zhou, K.Y.Li, “Investigation of the tribological properties of the different textured DLC coatings under reciprocating lubricated conditions”, Tribology International, (2013) in press
  • P.W.Shum, Z.F.Zhou, K.Y.Li, “To increase the hydrophobicity and wear resistance of DLC surface by using laser ablation process”, TSF (2012) in press
  • W.L.Cheng, Z.F.Zhou, P.W.Shum, K.Y.Li, “Effect of Ni addition on the structure and properties of Cr-Ni-N coatings deposited by closed-field unbalanced magnetron sputtering ion plating”, SURFACE AND COATING TECHNOLOGY (2011) in press
  • T.Fu, Z.F.Zhou, Y.M.Zhou, X.D.Zhu, Q.F.Zeng, C.P.Wang, K.Y.Li, J.Lu, “Mechancial Properties of DLC coating sputter deposited on surface nanocrystallized 304 stainless steel”, Surface & Coatings Technology 207 (2012) 555-564
  • P.C.Wo, P.R.Munroe, Z.Li, Z.T.Jiang, Z.H.Xie, Z.F.Zhou, K.Y.Li, “Factors governing the mechanical behaviour of CrSiM coatings: Combined nanoindentation testing and transmission electron microscopy”, MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, Vol 534 (Feb 2012) 297-308
  • Z.F.Zhou, B.Zhao, P.W.Shum, K.Y.Li, “Mechancial behaviors of Ti-Si-N Coatings deposited by bias sputtering”, RARE METAL MATERIALS AND ENGINEERING, Vol 41 Supplement 1(2012) 18-23
  • P.W.Shum, Z.F.Zhou, K.Y.Li, “Feasibility study of using DLC coating in conjunction with laser ablation process to improve the tribological performance of an engineering surface”, RARE METAL MATERIALS AND ENGINEERING, Vol 41 Supplement 1(2012) 52-56
  • Q.Z.Wang, F.Zhou, Z.F.Zhou, Y.Yang, C.Yan, C.D.Wang, W.J.Zhang, L.K.Y.Li, I.Bello, S.T.Lee, “Influence of carbon content on the microstructure and tribological properties of TiN(C) coatings in water lubrication”, SURFACE AND COATING TECHNOLOGY 206 (2012) 3777-3787
  • Q.Z.Wang, F.Zhou, Z.F.Zhou, Y.Yang, C.Yan, C.D.Wang, W.J.Zhang, L.K.Y.Li, I.Bello, S.T.Lee, “Influence of Ti content on the structure and tribological properties of Ti-DLC coatings in water lubrication”, DIAMOND & RELATED MATERIALS, 25 (2012) 163-175 163-175
  • P.W.Shum, Y.F.Xu, Z.F.Zhou, W.L.Cheng, K.Y.Li, “Study of TiAlSiN coatings post-treated with N and C+N implantations. Part 2: The tribological analysis”, WEAR 274-275 (2012) 274-280
  • P.W.Shum, Y.F.Xu, Z.F.Zhou, K.Y.Li, “Effects of carbon and nitrogen ion implantation on surface and tribological properties of Ti-Al-Si-N coatings”, Surface Engineering, (2012) Vol 28 No.2 149-154
  • M.S.Ahmed, P.Munroe, Z.T.Jiang, X.Zhao, W.Richard, Z.F.Zhou, K.Y.Li, Z.H.Xie , “Corrosion behaviour of nanocomposite TiSiN coatings on steel substrates”, CORROSION SCIENCE, Vol 53, Issue 11, Nov 2011, 3678-3687
  • M.S.Ahmed, X.Zhao, Z.F.Zhou, P.Munroe, N.C.Tan, K.Y.Li, Z.H.Xie, "Effect of thermal annealing upon residual stress and mechanical properties of nanostructured TiSiN coatings on steel substrates", J. of the American Ceramic Society, Volume 94, [5], (May 2011), 1546–1551
  • P.C.Wo, P.R.Munroe, Z.Xie, Z.F.Zhou, K.Y.Li, “Three-dimensional visualization of scratch-induced subsurface damage in TiSiN/TiN multilayer coating using focused ion beam-scanning electron microscopic tomography technique”, J. of the American Ceramic Society, 94 [5] (May 2011) 1598-1604
  • C.J.Hooke, K.Y.Li, “Roughness in elastohydrodynamic contacts”, PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE, Vol 224 Issue C12 (2010) 2599-2609 (IF= 0.329, ranked 72/106 in Mechanical Engineering)
  • M.S.Ahmed, Z.F.Zhou, P.Munroe, K.Y.Li, Z.H.Xie, “Control of the damage resistance of nanocomposite TiSiN coatings on steel: Roles of residual stress”, THIN SOLID FILMS, 519 (2011) 5007-5012
  • B.H. Luo, P.W. Shum, Z.F. Zhou and K.Y. Li, “Surface geometrical model modification and contact angle prediction for the laser patterned steel surface”, SURFACE AND COATING TECHNOLOGY, 205 (2010) pp2597-2604 (IF= 1.559, ranked 5/16 in Materials Science, Coatings & Films)
  • C.K. Cheung, B. Shi, C.S. Lau, P.W. Shum, Z.F. Zhou, K.Y. Li, “To investigate the effect of surface coatings on the wear behaviour of the friction contact of ultrasonic motors”, PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF TRIBOLOGY, Vol. 224 No. J9 (2010) 989-996
  • Rajnish Singh, Zhifeng Zhou, Zonghan Xie, Lawrence Li, Paul Munroe, Mark Hoffman, “Design of functionally graded carbon coatings against contact damage”, THIN SOLID FILMS, 518 (2010) 5769-5776
  • O.Kutsay, C.Yan, Y.M.Chong, Q.Ye, I.Bello, W.J.Zhang, J.A.Zapien, Z.F.Zhou, Y.K.Li, V.Garashchenko, A.G.Gontar, N.V.Novikov, S.T.Lee, “Studying cubic boron nitride by Raman and infrared spectroscopies”, DIAMOND & RELATED MATERIALS, 19 (2010) 968-971
  • C.Yan, Z.F.Zhou, Y.M.Chong, C.P.Liu, K.Y.Li, I.Bello, O.Kutsay, J.A.Zapien, W.J.Zhang, “Synthesis and chacrterization of hard ternary AlMgB composite films prepared by sputter deposition”, THIN SOLID FILMS, 518 (2010) 5372-5377 (IF= 1.666, ranked 3/16 in Coatings and Films, Materials Science)
  • R.L.Hu, A.K.Soh, L.Lu, P.L.Tam, K.Y.Li, “The behavior of electrodeposited nanocrystalline Co-Ni alloys subjected to magnetic and stress fields”, Surface Review and Letters, 17(1), 129-134
  • P.C.Wo, P.R.Munroe, Z.F.Zhou, K.Y.Li, Z.H.Xie, “Effects of TiN sublayers on the response of TiSiN nanocomposite coatings to nanoindentation and scratching contacts”, Materials Science and Engineering A, volume 527, issue 16-17, 2010, 4447-4457
  • P.C.Wo, Z.H.Xie, P.R.Munroe, Z.F.Zhou, K.Y.Li, “Cross-sectional transmission electron microscopy of deformed microstructures in monolithic and multilayer TiSiN/TiN films”, International Journal of Modern Physics B 24 (2010) 18-25
  • B.H.Luo, P.W.Shum, Z.F.Zhou and K.Y.Li, “Preparation of hydrophobic surface on steel by patterning using laser ablation process”, SURFACE AND COATING TECHNOLOGY, 204 (2010) 1180-1185 (IF= 1.559, ranked 5/16 in Materials Science, Coatings & Films)
  • Y.F.Xu, P.W.Shum, Z.F.Zhou, K.Y.Li, ”Effect of high-energy carbon ion implantation on Ti–Al–Si–N coatings by metal vapour vacuum arc”, SURFACE AND COATING TECHNOLOGY, 204 (2010) 1914-1918 (IF= 1.559, ranked 5/16 in Materials Science, Coatings & Films)
  • P.W.Shum, Z.F.Zhou, K.Y.Li, “A Study of the Structural, Mechanical and Triboligical Properties of Ti-Al-N Coatings Post-Treated by Carbon Implantation”, Advanced Materials Research Vol 75 (2009) pp7-12
  • P.L.Tam, Z.F.Zhou, P.W.Shum, K.Y.Li, “Oxidation Resistance of Multicomponent CrTiAlN Hard Coatings at Elevated Temperatures”, Advanced Materials Research, Vol 75 (2009) pp37-42
  • Z.F.Zhou, P.L.Tam, P.W.Shum, K.Y.Li, “High temperature oxidation of CrTiAlN hard coatings prepared by unbalanced magnetron sputtering”, THIN SOLID FILMS, 517 (2009) 5243-5247
  • F.Y.Cheung, Z.F.Zhou, A.Geddam, K.Y.Li, “Cutting edge preparation using magnetic polishing and its influence on the performance of high-speed steel drills”, JOURNAL of MATERIAL PROCESSING TECHNOLOGY, 208 (2008) 196-204
  • A.Vyas, K.Y.Li, Y.G.Shen, “Influence of deposition conditions on mechanical and tribological properties of nanostructured TiN/CNx multilayer films Surface and Coatings Technology”, SURFACE AND COATING TECHNOLOGY, 203 (2009) 967-975
  • A.Vyas, Y.G.Shen, Z.F.Zhou, K.Y.Li, “Nano-structured CrN/CNx multilayer films deposited by magnetron sputtering”, COMPOSITES SCIENCE AND TECHNOLOGY, 68 (2008) 2922-2929
  • P.L.Tam, Z.F.Zhou, P.W.Shum, K.Y.Li, “Structural, mechanical, and tribological studies of Cr-Ti-Al-N coating with different chemical compositions”, THIN SOLID FILMS, 516 (2008) 5725-5731.
Research Projects
  • Improvement of Productivity and Reliability of Cutting Tools by the Combination of Cutting Edge Preparation and Surface Coating
  • Surface Modification of Artificial Orthopaedic Biomaterials by an Integrated Approach Combining Laser Surface Patterning and Ion Implantation
  • To Increase the Non-stickiness of Amorphous Carbon Coatings for Surgical Devices by Laser Surface Patterning
  • Development of New Anti-sticking Coatings for Plastic Molding Applications Using Novel Coating Technology
  • A Three-dimensional Approach Using DLC Rods to Improve the Friction and Wear Behaviour of Hard Nanocomposite Coatings
Services

To Professional Community:

  • Member of Editorial Board - Proc IMechE, Part J, Journal of Engineering Tribology
  • Member of Editorial Board - International Journal of Surface Science and Engineering