Dr Jo Sharp
MA (Cantab) MSc PhD FRMS
Department of Materials Science and Engineering
Fellow of the Royal Microscopical Society
+44 114 222 5989
Full contact details
Department of Materials Science and Engineering
Sir Robert Hadfield Building
Jo is a specialist in transmission electron microscopy (TEM) for materials science. Her personal research interests are in TEM technique development.
MSc and MA Natural Sciences, University of Cambridge
PhD, University of Cambridge
- Research interests
My research interests are many and varied. During my PhD in Cambridge, I focused on electron tomography of crystal defects using weak-beam dark-field microscopy and annular dark-field STEM, and the application of tomographic reconstruction techniques.
Between 2010 and 2013, I primarily working with fine-structure EELS as applied to ceramic materials and the investigation of their electrical properties, as well as exploring other TEM techniques such as lithium battery cathode materials with Dr Nik Reeves-McLaren, and barium titanate with Lizz Cedillo.
In 2014 I became involved with analysing particles from carbon replicas in steels in collaboration with PhD students working with Tata Steel. I also began to investigate HIPIMS films produced by Papken Hovsepian’s group at Sheffield Hallam University with some exciting multi-technique work to characterise a new film microstructure.
In 2015 I worked with Dr Conny Rodenburg and Maurizio Dapor on a multidisciplinary project exploring the Energy Loss Function through TEM EELS spectra of polymers PMMA and P3HT to contribute to their model for secondary electron spectroscopy in the SEM (papers in publication). I also contributed to a project with Wei-Gang Yang and Nicola Morley to characterise novel nanostructured multiferroic films.
Most recently I have revisited EELS fine structure analysis to do some work on Ce compounds for nuclear materials with Professor Neil Hyatt, and assisted Le Ma with analysis of state-of-the-art biological ceramic prosthetics.
- Improving the oscillating wear response of cold sprayed Ti-6Al-4V coatings through a heat treatment. Surface and Coatings Technology, 399. View this article in WRRO
- Ramification of thermal expansion mismatch and phase transformation in TiC-particulate/SiC-matrix ceramic composite. Ceramics International, 46(12), 20488-20495.
- Influence of solidification cell structure on the martensitic transformation in additively manufactured steels. Additive Manufacturing. View this article in WRRO
- Microstructural evolution and wear mechanism of Ti3AlC2 – Ti2AlC dual MAX phase composite consolidated by spark plasma sintering (SPS). Wear. View this article in WRRO
- The lubricating properties of spark plasma sintered (SPS) Ti3SiC2 MAX phase compound and composite. Tribology Transactions. View this article in WRRO
- Exploiting thermal strain to achieve an in-situ magnetically graded material. Materials and Design, 161, 14-21. View this article in WRRO
- Enhancing ductility and strength of nanostructured Mg alloy by in-situ powder casting during spark plasma sintering. Journal of Alloys and Compounds, 769, 71-77. View this article in WRRO
- Artificial multiferroic structures using soft magnetostrictive bilayers on Pb(Mg1/3Nb2/3)–PbTiO3. Journal of Physics D: Applied Physics, 51. View this article in WRRO
- Direct observation of precipitation along twin boundaries and dissolution in a magnesium alloy annealing at high temperature. Scripta Materialia, 138, 39-43. View this article in WRRO
- Secondary electron spectra of semi-crystalline polymers – A novel polymer characterisation tool?. Journal of Electron Spectroscopy and Related Phenomena. View this article in WRRO
- Individual effect of recrystallisation nucleation sites on texture weakening in a magnesium alloy: Part 1- double twins. Acta Materialia, 135, 14-24. View this article in WRRO
- Tribological response and characterization of Mo–W doped DLC coating. Wear, 376-377, 1622-1629. View this article in WRRO
- Microstructural evolution of Mn-based maraging steels and their influences on mechanical properties. Materials Science and Engineering: A, 674, 286-298. View this article in WRRO
- Characterisation of L21-ordered Ni2TiAl precipitates in FeMn maraging steels. Materials Characterization, 118, 199-205. View this article in WRRO
- On the use of cryomilling and spark plasma sintering to achieve high strength in a magnesium alloy. Journal of Alloys and Compounds, 688, 1141-1150. View this article in WRRO
- Spinel–rock salt transformation in LiCoMnO4−δ. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 472(2185). View this article in WRRO
- Strain-mediated converse magnetoelectric coupling strength manipulation by a thin titanium layer. Applied Physics Letters, 108(1). View this article in WRRO
- Giant electric field tunable magnetic properties in a Co50Fe50/lead magnesium niobate–lead titanate multiferroic heterostructure. Journal of Physics D: Applied Physics, 48(30), 305005-305005. View this article in WRRO
- New compositional design for creating tough metallic glass composites with excellent work hardening. Acta Materialia, 86, 208-215. View this article in WRRO
- High-angle triple-axis specimen holder for three-dimensional diffraction contrast imaging in transmission electron microscopy. Ultramicroscopy, 111(8), 1168-1175.
- Obstacles and optimisation in weak-beam dark-field tomography of defects. Journal of Physics: Conference Series, 241, 012007-012007.
- Dislocation electron tomography and precession electron diffraction - minimising the effects of dynamical interactions in real and reciprocal space. PHILOS MAG, 90(35-36), 4711-4730.
- Electron Tomography Imaging and Analysis ofγ′ andγ Domains in Ni-based Superalloys. Advanced Materials, 20(10), 1905-1909.
- Electron Tomography of Dislocations. Microscopy and Microanalysis, 13(S02).
- Three-dimensional analysis of dislocation networks in GaN using weak-beam dark-field electron tomography. Philosophical Magazine, 86(29-31), 4901-4922.
- High-Resolution Three-Dimensional Imaging of Dislocations. Science, 313(5785), 319-319.
- Weak-beam dark-field electron tomography of dislocations in GaN. Journal of Physics: Conference Series, 26, 247-250.
- Characterisation of a high-power impulse magnetron sputtered C/Mo/W wear resistant coating by transmission electron microscopy. Surface and Coatings Technology. View this article in WRRO
Conference proceedings papers
- The Spinel LiCoMnO4: 5V Cathode and Conversion Anode. Energy Procedia, Vol. 151 (pp 158-162), 11 September 2018 - 12 September 2018. View this article in WRRO
- Thermal Stability of Cryomilled Mg Alloy Powder. Magnesium Technology 2017 (pp 225-233), 26 February 2017 - 2 March 2017. View this article in WRRO
- Cross sectional TEM analysis of duplex HIPIMS and DC magnetron sputtered Mo and W doped carbon coatings. Journal of Physics: Conference Series, Vol. 644 (pp 012011-012011) View this article in WRRO
- Sub-surface characterisation of tribological contact zone of metal hip prostheses. Journal of Physics: Conference Series, Vol. 644 (pp 012029-012029)
- 3-dimensional imaging of dislocation microstructures by electron beams. MRS Proceedings, Vol. 1421
- Dislocation tomography made easy: a reconstruction from ADF STEM images obtained using automated image shift correction - art. no. 012013. EMAG: ELECTRON MICROSCOPY AND ANALYSIS GROUP CONFERENCE 2007, Vol. 126 (pp 12013-12013)
My current role, working with Rolls-Royce, requires the analysis of the microstructure and properties of blown powder material-addition (3D printing) repairs of aeroengine blisks (a structure with integrated blades and disks), in high-strength titanium alloys and nickel-based superalloys.