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Dr. WONG, P.L., Patrick

Photo of Dr. WONG

Associate Professor


BSc-MechE(CityULondon), PhD(HKU)

Email: meplwong@cityu.edu.hk

Research Areas: Tribology, Nano/Micro Magnetic Control

Education


Main Research Activities

  1. Tribology
    • Actively involved in Tribology research for over two decades.
    • Developed an efficient and robust technique for the measurement of a wide lubricating film thickness range from micro to nanometers.
    • Currently studying on lubrication system with film thickness ranging from micro to nano scales.
  2. Rolling element bearings
    • Actively research in life of rolling ball bearings in contaminated conditions through tailored experiment, microscopy and finite-element modeling.
    • Proposed a novel design of partial hybrid rolling bearings.
    • Having a joined project with SKF working on DLC coatings.
  3. Micro/nano magnetic control
    • Working on diamagnetic levitation to facilitate zero friction micro/nano contacts.
    • Designing micrometer sized actuators using magneto-sensitive smart materials such as magneto-rheological fluids and giant magneto-strictive materials.
  4. Interfacial slippage
    • Successfully developed a novel lubrication means to facilitate effective lubrication of parallel faces - a common feature in micro/nano systems based on the principle of interfacial slippage between the fluid and solid surfaces.

Summary of Output


No. of publications
Refereed journal papers       37
Refereed conference papers    45
Book chapter                   1

Total no. of citation        142



Selected Recent Publications

  1. Guo. F., Fu Z., Wong P.L. and Yang P., "Experimental study on the lubrication regime variation in point contacts", Tribology International, Vol.41, No. 6, pp.451-460, June. 2008.


  2. Wang W., Wong P.L., He F. and Wan G.T.Y., "Experimental study of the smoothing effect of a ceramic rolling element on a bearing raceway in contaminated lubrication", Tribology Letters, 28, 1, pp.89-97, Oct. 2007.


  3. Fu Z., Guo F. and Wong P.L., "Non-classical elastohydrodynamic lubricating film shape under large slide-roll ratios", Tribology Letters, 27, 2, pp.211-219, Aug. 2007.


  4. Guo F. and Wong P.L., "Theoretical prediction of hydrodynamic effect by tailored boundary slippage", Proceedings of the I MECH E Part J Journal of Engineering Tribology, Vol.220, pp.43-48, Mar. 2006.


  5. Guo F. and Wong P.L., "An anomalous elastohydrodynamic lubrication film - inlet dimple", Trans. ASME J. of Tribo., Vol. 127, No. 2, pp.425-434, Apr. 2005.


  6. Wang W., Wong P.L. and Guo F., "Application of partial elastohydrodynamic lubrication analysis in dynamic wear study for running-in", Wear, Vol.257, 7-8, pp.823-832, Oct. 2004.


  7. Leung W.C., Bullough W.A., Wong P.L. and Feng C., "The effect of particle concentration in a magneto rheological suspension on the performance of a boundary lubricated contact", Proceedings of the I MECH E Part J Journal of Engineering Tribology, Vol.218, pp.251-263, Sep. 2004.


  8. Guo F. and Wong P.L., "A wide range measuring system for thin lubricating film: from nano to micro thickness", Tribology Letters, Vol. 17, No. 3, pp.521-531, Oct. 2004.


  9. Guo F. and Wong P.L., "Experimental observation of a dimple-wedge elastohydrodynamic lubricating film", Tribology International, Vol.37, No. 2, pp.119-127, Feb. 2004.


  10. Wong P.L., Guo F., and Feng C., "The measurement of the refractive index of a liquid lubricant at high pressure within an EHL impact dimple using a single optical interferogram", Tribology International, Vol.36, No. 7, pp.497-504, Jul. 2003.


  11. Wang W., and Wong P.L., "The dynamic measurement of surface topography by a light-section technique", Tribotest. 9-4, pp.305-316, June 2003.


  12. Jiang H., Wong P.L., Meng Y., and Wen S., "An indirect electric field effect on the friction of boundary lubricated contact", Lubrication Science, 15-3, pp.275-292, May 2003.


  13. Wong P.L., Huang P., and Meng Y., "The effect of the electric double layer on very thin water lubricating film", Tribology Letters, Vol.14, No.3, pp.197-203, April 2003.


  14. Bullough W.A., Wong P.L., Feng C. and Leung W.C., "Fundamental boundary Tribology: ESF", J. Intel. Mat. Sys., Vol.14, No.2, pp.71-78, Feb. 2003.


  15. Guo F., and Wong P.L., "A multi-beam intensity-based for lubricant film measurements in non-conformal contacts", Proceedings of the I MECH E Part J Journal of Engineering Tribology, Vol.216, 5, pp.281-291, Oct. 2002.


  16. Guo F., Wong P.L., Yang P., and Yagi K., "Film formation in EHL point contacts under ZEV conditions", STLE Tribology Transaction, Vol.45, No.4, pp.521-530, Oct. 2002.


  17. Meng Y, Jiang H., and Wong P.L., "An experimental study on voltage-controlled friction of alumina/brass couples in zinc stearate/water suspension", STLE Tribology Transaction, Vol.44, No.4, pp.567-574, Oct. 2001.


  18. Guo F., Yang P., and Wong P.L., "On the thermal elastohydrodynamic lubrication in opposite sliding circular contacts", Tribology International, Vol.34, No. 7, pp.443-452, Jul. 2001.


  19. Jiang H., Wong P.L., and Meng Y., "Influence of 'off-contact' electric potential on frictional behaviours of agate/brass (SiO2/Cu) rubbing couple", Proceedings of the I MECH E Part J Journal of Engineering Tribology, Vol.215, 2, pp. 201-206, Apr. 2001.


  20. Wong P.L., Bullough W.A., Feng C., and Lingard S., "Tribological Performance of a Magneto Rheological Suspension", Wear, Vol.247, 1, pp.33-40, Jan. 2001.


  21. Wang W., and Wong P.L., "Wear Volume Determination During Running-in for PEHL Contacts", Tribology International, Vol. 33, No. 7, pp.501-506, Jul. 2000.


  22. Wang W., Wong P.L., and Zhang Z., "Experimental Study of the Real Time Change in Surface Roughness During Running-in for PEHL Contacts", Wear, Vol.244, 1-2, pp.140-146, Aug. 2000.

Last modified on 19 April, 2008