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Dr Patrick Trimby

Deputy Laboratory Manager, SEM Section Manager

Ph: + 61 2 9351 7561
Fax: + 61 2 9351 7682

BA (Hons), University of Oxford, 1994
PhD, University of Liverpool, 1998

Patrick’s original research background is in the field of geology: his PhD focused on developing the application of electron backscatter diffraction (EBSD) to the analysis of microstructures in deformed rocks, and this theme continued during a postdoctoral research position at the University of Utrecht in the Netherlands.

In 2000 Patrick moved into commercial electron microscopy, working for 5 years as the EBSD applications manager at HKL Technology in Denmark and from 2005-2009 as an applications specialist for Oxford Instruments Nordiska. During this time he was responsible for customer training and support for a number of SEM techniques, including EDS, WDS, EBSD and various heating and tensile stages. He moved to start his new role at the ACMM at the beginning of 2010.

As SEM Section Manager, Patrick is responsible for ensuring that the Centre's SEMs and FIB-SEMs are operating effectively, and that users receive the necessary training and support. Patrick also helps the university's researchers apply the advanced analytical SEM techniques available in the Centre, including automated particle detection, EBSD, TKD, EDS and novel 3D techniques such as serial block face SEM.

Research interests

  • The application of SEM based microanalysis techniques to a wide range of materials.
  • General application of SEM imaging techniques across the physical and biological sciences.
  • Development of nanoscale orientation mapping in the SEM using transmission Kikuchi diffraction (TKD)

Selected publications

  • P.W. Trimby, Y.Cao, Z. Chen, K. Hemker, X. Liao, P. Rottmann, S. Samudrala, J. Sun, J. Wang, J. Wheeler, J.M. Cairney (2014). "Characterising the deformation of ultra fine grained and nanocystalline materials using transmission Kikuchi diffraction in the scanning electron microscope", Acta Materialia 62, 69-80
  • P.W. Trimby (2012) "Orientation mapping of nanostrucutred materials using transmission Kikuchi diffraaction in the scanning electron microscope", Ultramicroscopy 120, 16-24
  • G. Grellet-Tinner, C. Sim, D. Kim, P.W. Trimby, A. Higa, S. An, H. Oh, T. Kim, N. Kardjilov (2011). "Description of the first lithostrotian titanosaur embryo in ovo with neutron characterization and implications for lithostrotian aptian migration and dispersion", Gondwana Research 20, 621-629
  • J. Wheeler, E. Mariani, S. Piazolo, D. Prior, P.W. Trimby, M. Drury (2009). "The weighted Burgers vector: A new quantity for constraining dislocation densities and types using electron backscatter diffraction on 2D sections through crystalline materials", Journal of Microscopy 233, 482-494
  • Trager Cowan, C., Sweeney, F, Trimby, P.W., Day, A.P., Gholinia, A., Scgmidt, N-H., Parbrook, P.J., Wilkinson, A.J. and Watson, I.M. (2007). Electron backscatter diffraction and electron channeling contrast imaging of tilt and dislocations in nitride thin films. Phys. Rev. B75, 085301
  • Reddy, S.M., Timms, N.E., Trimby, P.W., Kinny, P.D., Buchan, C. and Blake, K. (2006). Crystal-plastic deformation of zircon: A defect in the assumption of chemical robustness. Geology, 34; 257-260.
  • Prior, D.J., Boyle, A.P., Brenker, F., Cheadle, M.C., Day, A., Lopez, G., Potts, G.J., Reddy, S.M., Spiess, R., Trimby, P.W., Wheeler, J., & Zetterström, L., (1999). The application of Electron Backscatter Diffraction and Orientation Contrast Imaging in the SEM to textural problems in rocks. American Mineralogist, 84, 1741-1759.
  • Trimby, P.W., Prior, D.J. and Wheeler, J. (1998). Grain boundary hierachy development in a quartz mylonite. Journal of Structural Geology, 20, 917-935.
  • Prior, D.J., Trimby, P.W., Weber, U.D. and Dingley, D.J. (1996). Orientation contrast imaging of microstructures in rocks using forescatter detectors in the scanning electron microscope. Mineralogical Magazine, 60, p 859-869.

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