Professor Geraint Williams
Professor
Engineering
Telephone: (01792) 295589
Room: Academic Office - A231
Second Floor
Engineering East
Bay Campus

My research interests are in the fields of corrosion science, forensic science and chemical sensors. Primary activities involve the application of advanced electrochemical scanning techniques to study localised corrosion mechanisms and corrosion protection of various metals and alloys including steel, zinc, magnesium, aluminium and stainless steel. Current interests in this area lie in using scanning Kelvin probe (SKP) instrumentation to develop novel anti-corrosion coating technologies as alternatives to Cr(vi)-based systems and using a scanning vibrating electrode technique (SVET) to elucidate localised corrosion mechanisms, especially in Mg and its alloys. World-leading expertise in these 2 techniques has resulted in the supply of in-house built instruments to international companies and university groups. In the area of forensic science, current research interest lies in the development of new technologies to visualise fingerprints on metal. The application of SKP technology in this field made a particular impact, resulting in significant recent media coverage (Sky, BBC news).

I am author of 100+ publications in peer reviewed international journals (> 1800 citations; H-index = 27; source: Scopus) along with 100+ conference papers. I have twice given keynote invited lectures at the 2014 and 2008 Gordon Research Conferences (GRC) in aqueous corrosion, held at the Colby-Sawyer College, NH. Other recent invited conference lectures include being a Plenary speaker at the 2012 Australasian Corrosion association annual meeting (Melbourne 2012), Keynote speaker at the 230th and 220th ECS meetings (Phoenix 2015, Boston 2011), contributions at the 2012 RIP Symposium (Salt lake city), 2014 and 2010 RTS in NACE corrosion (both San Antonio) and the European Coatings Conference (Berlin, 2009).

Publications

  1. & Simultaneously improving the corrosion resistance and strength of magnesium via low levels of Zn and Ge additions. Corrosion Science 140, 18-29.
  2. & Inhibition of Filiform Corrosion on Organic-Coated Magnesium-Containing Galvanized Steel by Smart-Release Ion Exchange Pigments. ECS Transactions 80(10), 585-591.
  3. & Evaluation of multi-layered graphene nano-platelet composite coatings for corrosion control part I - contact potentials and gas permeability. Corrosion Science 136, 285-291.
  4. & Evaluation of multi-layered graphene nano-platelet composite coatings for corrosion control part II – Cathodic delamination kinetics. Corrosion Science 136, 304-310.
  5. & Quantifying the Role of Transition Metal Electrodeposition in the Cathodic Activation of Corroding Magnesium. Journal of The Electrochemical Society 165(5), C195-C205.

See more...

Teaching

  • EG-085 Foundation Chemistry

    This course is designed as an introduction to the chemical properties of materials used throughout engineering. To complement the taught theory, this course has a strong practical component during which students will develop the skills to carry out a number of basic laboratory manipulations in an accurate and safe manner.

  • EGA103 Foundation Chemistry

    This course is designed as an introduction to the chemical properties of materials used throughout engineering. To complement the taught theory, this course has a strong practical component during which students will develop the skills to carry out a number of basic laboratory manipulations in an accurate and safe manner.

  • EGSM02 Interpersonal Skills for Engineers

    The module will cover both presentation and written skills required for successful communication in enigineering. Presentations: Guidelines on making format presentations, considering attention span, visual aids, style, content and balance to ensure a memorable outcome. Preparation for one-on-one discussions, approaches to ensure successful meetings. Body Language: The influence of body language in communication both in formal presentations and in small group discussions. How to read body language in others, and modify your own body position to aid communication. Written: Guidelines on report preparation, including planning,structure and use of figures and tables. Preparation of an abstract, covering length, key issues and style for maximum effectiveness. Each candidate will prepare a detailed project plan covering background to the research, the scheduling of practical and other work, and milestone deliverables. This plan will be produced following: (i) attendance at specialist lectures covering issues of good practice in the conduct of research eg safety, procedures for laboratory work and data reporting/analysis; (ii) discussion with academic and industrial supervisors regarding technical/commercial issues associated with the specific topic; (iii) a review of the formal course units covering technical issues, personal and professional development and research skills. The overall report must demonstrate that each student relates relevant aspects of the training courses to their industry oriented research project.

  • EGTM98 Electrochemistry

    Electrochemistry basic principles including: Electrode potentials, Nernst equation, dynamic electrochemistry including current-voltage relationships. Potentiostat based electrochemistry methods including potentiodynamic, potentiostatic, galvanostatic and cyclic voltammetric techniques. Applications of potentiostat-based electrochemistry methods, especially in corrosion and coatings research. Advanced electrochemical scanning techniques: basic principles of operation, design and applications. Scanning reference and vibrating electrode techniques (SRET and SVET) and scanning electrochemical microscopy (SECM) applied to corrosion research. Introduction to electrochemical techniques for characterising organic coated metals. Basic principles of electrochemical impedance spectroscopy and applications in evaluating corrosion protection of metals using coatings. The scanning Kelvin probe technique: principles of operation, design of instrumentation and applications in the study of corrosion protection of metals by organic coatings.

Supervision

  • An investigation of Electroless Nickel-Phosphorous Alloy coatings for Use in Circulation Coinage (current)

    Student name:
    EngD
    Other supervisor: Prof Hamilton Mcmurray
  • Anti-tarnish coating technologies for brass-plated coinage (current)

    Student name:
    EngD
    Other supervisor: Prof Hamilton Mcmurray
  • Thermo-mechanical fatigue crack propagation behaviour in titanium alloys (current)

    Student name:
    EngD
    Other supervisor: Dr Mark Whittaker
  • Improved organic coating delamination resistance using physical vapour deposited Zn-Mg layers on strip steel (current)

    Student name:
    EngD
    Other supervisor: Prof James Sullivan
  • TBC (current)

    Student name:
    EngD
    Other supervisor: Prof Hamilton Mcmurray
  • Corrosion performance of Trivalent chromium coatings on steel for packaging applications. (current)

    Student name:
    EngD
    Other supervisor: Prof Hamilton Mcmurray
  • Development of pre-treatment primers and / or universal primers for all Building Envelope products (current)

    Student name:
    EngD
    Other supervisor: Prof Hamilton Mcmurray
  • Untitled (current)

    Student name:
    MSc
    Other supervisor: Prof Hamilton Mcmurray
  • 'Scale up of organic ion exchange materials for corrosion inhibition for Hexagone' (current)

    Student name:
    MSc
    Other supervisor: Prof Hamilton Mcmurray
  • Untitled (current)

    Student name:
    MSc
    Other supervisor: Prof Hamilton Mcmurray
  • 'Development of the Iron Electrode for Utility Scale Energy Storage' (current)

    Student name:
    EngD
    Other supervisor: Prof James Sullivan
  • Utility Scale Energy Storage - The Next Big Challenge (current)

    Student name:
    EngD
    Other supervisor: Dr Ian Mabbett
  • Development of novel corrosion inhibiting pigments (current)

    Student name:
    PhD
    Other supervisor: Dr Patrick Dodds
  • Fundamental study of cosmetic corrosion on novel automotive aluminium alloys. (current)

    Student name:
    EngD
    Other supervisor: Prof Hamilton Mcmurray
  • Corrosion protection of steel surfaces using smart-release pigments (current)

    Student name:
    EngD
    Other supervisor: Prof Hamilton Mcmurray
  • A systematic study of phosphate based pigments to inhibit the cathodic disbondment of organically coated hot dipped galvanised steels (current)

    Student name:
    PhD
    Other supervisor: Prof Hamilton Mcmurray
  • Corrosion studies on Magnesium and magnesium containing alloys (current)

    Student name:
    PhD
    Other supervisor: Prof Hamilton Mcmurray
  • NDE Characterisation Techniques for Additive Metal Materials & Structures (current)

    Student name:
    PhD
    Other supervisor: Dr Robert Lancaster
  • Novel electrodeposited brass composite coating for coins«br /»«br /»«br /»«br /» (current)

    Student name:
    PhD
    Other supervisor: Dr David Penney
  • Thermo-mechanical characterisation of a nickel super alloy (current)

    Student name:
    PhD
    Other supervisor: Dr Helen Davies
  • Development of Novel Corrosion resistant Magnesium alloys (current)

    Student name:
    EngD
    Other supervisor: Prof James Sullivan
  • Untitled (current)

    Student name:
    EngD
    Other supervisor: Prof Hamilton Mcmurray
  • Untitled (current)

    Student name:
    EngD
    Other supervisor: Prof James Sullivan
  • The role of preferred texture on the electrochemical activity of hexagonal metals (current)

    Student name:
    PhD
    Other supervisor: Dr Leo Prakash
  • 'Mapping of corrosion sites in advanced gas-cooled reactor fuel cladding for long term pond storage' (awarded 2018)

    Student name:
    PhD
    Other supervisor: Prof Hamilton Mcmurray
  • 'A new approach to BOF mixing element design: Development of Annular slot tuyere' (awarded 2018)

    Student name:
    EngD
    Other supervisor: Dr Cameron Pleydell-Pearce
  • 'Stainless Steel Alternatives to Cadmium Plated High Strength Steel : Development of the Accelerated Salt Spray Test to Represent Real Time Corrosion' (awarded 2017)

    Student name:
    PhD
    Other supervisor: Dr Karen Perkins
  • ''Anti-corrosion smart-release pigments for steel substrates'' (awarded 2017)

    Student name:
    EngD
    Other supervisor: Prof Hamilton Mcmurray

Collaborative Partners

Partner Name Description
TATA Steel Collaborative research
BASF Collaborative research
Airbus Collaborative research
Novelis Collaborative research
National Nuclear Laboratory Collaborative research
Royal Mint Collaborative research