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  1. No Access

    Article

    A Simplified Model of Surface Burnishing and Friction in Repeated Make-Up Process of Premium Tubular Connections

    We develop a simplified model to predict the frictional behaviour of the contact between the surfaces of a rotary shouldered thread connection in the make-up process of premium tubular connections as used in t...

    H. R. Le, F. Stewart, J. A. Williams in Tribology Letters (2015)

  2. No Access

    Article

    Effect of pH and temperature on the morphology and phases of co-precipitated hydroxyapatite

    This paper reports a high-yield process to fabricate biomimetic hydroxyapatite nano-particles or nano-plates. Hydroxyapatite is obtained by simultaneous drip** of calcium chloride and ammonium hydrogen phosp...

    H. R. Le, K. Y. Chen, C. A. Wang in Journal of Sol-Gel Science and Technology (2012)

  3. Article

    Open Access

    Fabrication and mechanical properties of chitosan composite membrane containing hydroxyapatite particles

    This paper described the development of chitosan composites containing precipitated hydroxyapatite particles for potential applications in orthopaedic surgery or waste water treatment. The synthetic process an...

    H. R. Le, S. Qu, R. E. Mackay, R. Rothwell in Journal of Advanced Ceramics (2012)

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  4. No Access

    Article

    Tribological Characterisation of Air-Sprayed Epoxy-CNT Nanocomposite Coatings

    Epoxy-carbon nanotube (CNT) composites are promising coating materials for wear and corrosion critical applications such as marine bearings, shafts, bolts and gears. However, there are insufficient tribologica...

    H. R. Le, A. Howson, M. Ramanauskas, J. A. Williams in Tribology Letters (2012)

  5. No Access

    Article

    3D surface topography and reflectivity of anisotropic etched silicon micromirrors for BioMEMS

    This paper examines wet and dry fabrication of vertical micro-mirrors in (110) silicon for use in an innovative BioMEMS integrating grip** and micro force sensing functionalities. Wet anisotropic chemical et...

    R. E. Mackay, N. Lionis, H. R. Le in Microsystem Technologies (2011)

  6. No Access

    Chapter and Conference Paper

    Microstructure and Cell Adhesion of Hydroxyapatite/Collagen Composites

    This paper reports the development of a simple and cost effective method to fabricate hydroxyapatite/collagen nanocomposites. Hydroxyapatite is obtained by simultaneous drop** of calcium containing solution ...

    H. R. Le, S. Pranti-Haran, K. Donnelly… in World Congress on Medical Physics and Biom… (2010)

  7. No Access

    Chapter and Conference Paper

    Manufacture of SU-8 Micro-Grippers for Mechanical Characterization of Gut Epithelial Cells

    This paper describes the manufacture of an integrated micro-electro-mechanical system (MEMS) to be used for small scale tissue manipulation. The micro-grippers are to be used to test the mechanical cell adhesi...

    R. E. Mackay, H. R. Le, R. P. Keatch… in World Congress on Medical Physics and Biom… (2010)

  8. No Access

    Chapter and Conference Paper

    Micro-grip** of Small Scale Tissues

    This paper describes the design and simulation of an integrated micro-electro-mechanical system (MEMS) to be used for small scale tissue manipulation. The microgrippers are to be used to test the mechanical ce...

    R. E. Mackay, H. R. Le, K. Donnelly… in 4th European Conference of the Internation… (2009)

  9. No Access

    Article

    A multi-scale model for friction in cold rolling of aluminium alloy

    A simple and robust friction model is proposed for cold metal rolling in the mixed lubrication regime, based on physical phenomena across two length scales. At the primary roughness scale, the evolution of asp...

    H.R. Le, M.P.F. Sutcliffe in Tribology Letters (2006)

  10. No Access

    Article

    Effect of plasticizer on the cracking of ceramic green bodies in gelcasting

    L. G. MA, Y. HUANG, J. L. YANG, H. R. LE, Y. SUN in Journal of Materials Science (2005)

  11. No Access

    Article

    The electrode potential of freshly generated aluminium surfaces in lubricating oil

    This paper describes the electrode potential of freshly generated aluminium surfaces measured using the guillotined electrode whilst it is submerged under lubricating oil. An initially low value of the bared m...

    P. Wang, G.T. Burstein, H.R. Le, M.P.F. Sutcliffe in Tribology Letters (2005)

  12. No Access

    Article

    Friction and material transfer in micro-scale sliding contact between aluminium alloy and steel

    A ball-on-flat reciprocating micro-tribometer has been used to measure the friction coefficient between aluminium alloy strip and a steel ball. A relatively small ball and correspondingly low contact load is u...

    H. R. Le, M. P. F. Sutcliffe, J. A. Williams in Tribology Letters (2005)

  13. No Access

    Article

    The effect of surface deformation on lubrication and oxide-scale fracture in cold metal rolling

    Finite-element analysis is used to examine the surface deformation of a thin strip at the inlet to the bite in cold metal rolling. There is a “pre-entry” region ahead of the bite where there is significant ela...

    H. R. Le, M. P. F. Sutcliffe in Metallurgical and Materials Transactions B (2004)