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Engineering

Photo of Prof Oana Ghita

Prof Oana Ghita

Professor in Materials and Manufacturing, Deputy Head of Engineering (Materials and Mechanical Engineering) and Co-Director of Exeter Technologies Group

 o.ghita@exeter.ac.uk

 (Streatham) 3667

 01392 723667


Overview

Oana holds a Chair in Materials Science and Manufacturing in the Faculty of Environment, Science and Economy. She is Deputy Head of Engineering (Materials and Mechanical Engineering section)  and she is also Co-director of Exeter Technology Group (ETG) which includes three research centres: Exeter Advanced Technologies (X-AT); Centre for Additive Layer Manufacturing (CALM) and Centre for Alternative Materials and Remanufacturing (CALMARE).

She is the academic lead for the CALM centre most of her current research work being in this area. 

She started her career as a Research Fellow at Cranfield University- Royal Military College of Science, in the Sensors and Composites Research Group and then at Exeter University.

At Exeter, she has secured funding in value of £10m to Exeter through a wide range of research projects (TSB, EU and EPSRC). Her research is focused on high performance polymers and composites and related manufacturing processes including conventional and new emerging manufacturing processes such as Additive Manufacturing (AM). Her work concentrates on understanding the relationship between molecular structure/morphology, manufacturing and desired final properties. In AM, Oana works in High Temperature Powder Bed Fusion (PBF)  and Material Extrusion (MEX) focused primarely on high performance, high temperature engineering polymers such as PEK, PEEK, medical grades of PEEK and PEKK as well as composites (glass, graphatised carbon, ceramic - fibres and fillers and CNTs reinforcement) and polymeric blends. Exeter University has the unique capabilities and expertise in additive manufacture of high performance polymers using commercial High Temperature AM systems: EOS P800, EOS P810,  3DGENCE F340, MiniFactory Ultra 3D and Intamsys and in house developed - High Temperature MEX systems.

She has also been involved in the development of in-line monitoring sensors and novel instrumentation for efficient material use and reduction of manufacturing waste (near IR and Raman spectroscopy, combined NIR/Raman-thermal analysis).

Oana works closely with industry, is a member of the EPSRC Peer Review College and reviewer and technical expert for European Commission.

Selected member of the EPSRC Early Career Forum in Manufacturing Research in 2012 

Fellow of the Institute of Materials, Minerals and Mining (FIMMM)

Google Scholar: https://scholar.google.com/citations?user=NREbOyUAAAAJ&hl=en

  Current Projects

Multimillion Industrial Partnership with Victrex Plc (2nd) - Next generation of PAEK materials and processes

Innovate UK - Overprinting of High Performance Polymers (OVERHIPP) 

Knowledge Transfer Partnership (KTP) - Sartorius- Stedim - The development of polymeric materials optimised for AM for Biopharma industry 

EPSRC - Researcher in ResidenceIn partnership with the Manufacturing Technology Centre (MTC) - High Temperature Additive Manufacturing - In search for commercial applications

Innovate UK - Multifunctional PAEK nanocomposites for laser sintering (F4 PAEK) 

Multimillion Industrial Partnership with Victrex Plc (1st) - Next Generation of PAEK materials for AM processes

Industry funded Project  - Development of polyamide grades for AM

Aerospace Technology Institute (ATI)- High temperature, affordable polymer composites for AM aerospace applications (50668-379162)

EPSRC - Novel high performance polymeric composite materials for additive manufacturing of multifunctional components (EP/N034627/1)

Innovate UK (IUK) - Multifunctional PAEK nanocomposites for Laser SIntering (F4 PAEK) (89963-549685)

Knowledge Transfer Partnership (KTP) - Finisterre - The development of a new sustainable wetsuit with improved options for repair and recycling

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Publications

Copyright Notice: Any articles made available for download are for personal use only. Any other use requires prior permission of the author and the copyright holder.

| 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2002 |

2024

2023

2022

2021

2020

2019

  • Garcia-Leiner M, Ghita O, McKay R, Kurtz SM. (2019) Chapter 7 Additive Manufacturing of Polyaryletherketones, PEEK Biomaterials Handbook, Elsevier, 89-103, DOI:10.1016/b978-0-12-812524-3.00007-7.
  • Davies R, Shyng Y, McCutchion P, Holsgrove T, Ghita O. (2019) PEEK laser sintered intervertebral lumbar cages: process and properties, 4th International PEEK Meeting, Washington Dc, Usa,, 25th - 26th Apr 2019, https://biomed.drexel.edu/peek/conferences/publication-files/2019-peek-program.pdf.
  • Benedetti L, Brulé B, Decraemer N, Davies R, Evans K, Ghita O. (2019) Mechanical performance of laser sintered poly(ether ketone ketone) (PEKK), Solid Freeform Fabrication 2019: Proceedings of the 30th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2019, pages 721-734.
  • Inai NH. (2019) INTERFACES IN MODIFIED CELLULOSE NANOCRYSTALS REINFORCED POLYETHYLENE COMPOSITES.
  • Benedetti L, Brule B, Decreamer N, Evans K, Ghita OR. (2019) Shrinkage behaviour of semi-crystalline polymers in laser sintering: PEKK and PA12, Materials and Design, DOI:10.1016/j.matdes.2019.107906.
  • Chen B, Berretta S, Davies R, Ghita O. (2019) Characterisation of carbon fibre (Cf) - Poly Ether Ketone (PEK) composite powders for laser sintering, Polymer Testing, volume 76, DOI:10.1016/j.polymertesting.2019.03.011.

2018

2017

2016

2015

2014

2013

2012

  • Oliveux G, Le Gal La Salle E, Bailleul JL, Heard PJ, Ball RJ, Hallam KR, Ghita O. (2012) Recycling by solvolysis thermosetting composite materials of sustainable surface transport, Materiaux et Techniques, volume 100, no. 5, pages 493-503, DOI:10.1051/mattech/2012037.
  • Allen RJ, Ghita O, Farmer B, Beard M, Evans KE. (2012) Wetting mechanisms of Vertically Aligned Carbon nanotube (VACNT) composite structures in readiness for additive layer manufacture, ECCM 2012 - Composites at Venice, Proceedings of the 15th European Conference on Composite Materials.
  • Farmer BL, Allen RA, Ghita O, Beard MA, Evans KE. (2012) Strategies to combine nanocomposite and additive layer manufacturing techniques to build materials and structures simultaneously, ECCM 2012 - Composites at Venice, Proceedings of the 15th European Conference on Composite Materials.
  • Salter E, Kao CC, Ghita O, Shyng YT. (2012) Analysis of Interfacial Properties of Silane Recoated Glass Fibres Recovered from Hydrolysis Process, 15th European Comference on Composite Materials (ECCM 15), Venice, Italy, 24th - 27th Jun 2012.
  • Xi Z, Ghita OR, Evans KE. (2012) The unusual thermal expansion behavior of PTFE/GF composites incorporating PTFE/GF recyclate, Composites Part A: Applied Science and Manufacturing, DOI:10.1016/j.compositesa.2012.07.013.
  • Kao CC, Ghita OR, Hallam KR, Heard PJ, Evans KE. (2012) Mechanical studies of single glass fibres recycled from hydrolysis process using sub-critical water, Composites Part A: Applied Science and Manufacturing, volume 43, no. 3, pages 398-406, DOI:10.1016/j.compositesa.2011.11.011.

2011

2010

  • Xi Z, Ghita OR, Johnston P, Evans KE. (2010) Novel Remanufacturing Process of Recycled Polytetrafluoroethylene(PTFE)/GF Laminate, International Conference on Advances in Materials and Processing Technologies, Paris, France, 24th - 27th Oct 2010.
  • Beard MA, Ghita OR, Evans KE. (2010) Using Raman Spectroscopy to Monitor Surface Finish and Roughness of Components Manufactured by Selective Laser Sintering (SLS), Journal of Raman Spectroscopy.
  • Beard MA, Ghita O, Evans KE. (2010) Evaluation of Laser Energy Density Effects on Mechanical Properties of Selective Laser Sintering Components Using Raman Spectroscopy, International Conference on Additive Technologies (ICAT), Slovenia.
  • Palmer J, Savage L, Ghita OR, Evans KE. (2010) Sheet Moulding Compound (SMC) From Carbon Fibre Recyclate, Composites Part A – Applied Science and Manufacturing, volume 41, pages 1232-1237, DOI:10.1016/j.compositesa.2010.05.005.

2009

2008

  • Tomlinson SK, Brookbank P, Ghita OR, Beard MA, Evans KE. (2008) Novel Dental Cements Containing Combinations of Cyanoacrylate Resin, Hydroxyapatite and New Aluminium Based Fillers, 13th European Conference on Composite Materials (ECCM13), Stockholm, Sweden.
  • Ghita OR, Baker DC, Evans KE. (2008) In-line monitoring of injection moulding materials and parameters using near infrared spectroscopy and chemometric analysis, Polymer Processing Society (PPS) – 24th Annual Meeting, Italy, 2008.
  • Ghita OR, Baker DC, Evans KE. (2008) "An in-line near infrared process control tool for monitoring the effects of speed, temperature and polymer colour in injection moulding ", Polymer Testing, volume 27, pages 459-469.
  • Ghita OR, Baker DC, Evans KE. (2008) An in-line near infrared process control tool for monitoring the effects of speed, temperature and polymer colour in injection moulding, Polymer Testing, volume 27, pages 459-469.
  • Palmer J, Ghita OR, Savage L, Evans KE. (2008) Recyclate fibres �matrix interface analysis for reuse in sheet moulding compounds (SMC), European Conference of Composite Materials (ECCM13), Stockholm, 2008.
  • Ghita OR, Beard MA, McCabe J, Bottom R, Richmond J, Evans KE. (2008) A Study into First and Second Order Thermal Transitions of Materials using Spectral DSC, Journal of Materials Science, volume 43, pages 4988-4995, DOI:10.1007/s10853-008-2735-6.
  • Ghita OR, Baker DC, Evans KE. (2008) An in-line near-infrared process control tool for monitoring the effects of speed, temperature, and polymer colour in injection moulding, Polymer Testing, volume 27, no. 4, pages 459-469, DOI:10.1016/j.polymertesting.2008.01.010.

2007

2006

  • Ghita OR. (2006) In-line monitoring of plastics during injection moulding using near infrared spectroscopy, NIR news – The newsletter of the International Council for Near Infrared Spectroscopy, volume 17.
  • Tomlinson SK, Ghita OR, Hooper RM, Evans KE. (2006) The use of near-infrared spectroscopy for the cure monitoring of an ethyl cyanoacrylate adhesive, Vibrational Spectroscopy, volume 40, pages 133-141.
  • Tomlinson SK, Ghita OR, Hooper RM, Evans KE. (2006) The use of near-infrared spectroscopy for the cure monitoring of an ethyl cyanoacrylate adhesive, Vibrational Spectroscopy, volume 40, pages 133-141, DOI:10.1016/j.vibspec.2005.07.009.

2005

2002

  • Dumitrescu OR, Doyle C, Fernando GF. (2002) Extending Differential Scanning Calorimetry to Include Non-Contact Vibrational Spectroscopy and Thermal Expansion Analyses, 30th Annual Conference North American Thermal Analysis Society (NATAS), Pittsburg, States.
  • Dumitrescu OR, Degamber R, Fernando G. (2002) Non-contact cure monitoring of thermosets, 10th European Conference on Composites Materials (ECCM-10), Belgium, 2002.

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Further information

Open Positions

Postdoctoral Research Fellow in Materials Modelling and Simulations An exciting opportunity to model material behaviour in various manufacturing process with an exciting team of material scientists and engineers. 

Research News and Events

 

The Polymer International journal released a special issue focused on the synthesis, processing and applications of polyaryletherketones (PAEKs)

A case study developed as part of the UKRI Researcher in Residence Programme in collaboration with the MTC and Thales.

Read the steps took in redesigning a high performance cable guide using Powder Bed Fusion process with Victrex 450PEEK powder

https://youtu.be/9QbJ4N1ySaY

MOF- 3D - Laser Sintering with MOF-PA12 powders 

We combine MOF's with 3D printable polymers in such as way that the majority of the MOF adsorbtion capacity is retained but with the benefit of fabricating hierarchical complex structures from the macro to nano scale.  The new method of fabrication of the MOF-PA12 powder eliminates the health and safety concerns through reduced nanoscale powder handling as the MOF crystals are well bound to the polymer surface.  

Conference on Materials and Structures for Additive Manufacturing

The conference was hosted by the Centre for Additive Layer Manufacturing (CALM) in collaboration with the EPSRC Centre for Doctoral Training in Metamaterials at the University of Exeter.  

Pushing for performance in Polymer Powders

Collaboration with the Freeman Technology - specialist in systems for measuring the flow properties of powders  

CALM and MTC are partnering to work together on High Performance Polymers and Additive Manufacturing CALM and Victrex PartnershipThe partnership has been announced at the 2018 European Strategy for High Temperature Polymers in Exeter.  European Strategy for High Performance Polymer ManufacturingOutcomes published in Aerospace Manufacturing Magazine 2016 and 2014

CALM contributes towards development of new PAEK grades at part of a large ATI project 

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