Breakthrough Studies on the Plasma Electrolytic Oxidation (PEO) Coating Process
Lead Research Organisation:
University of Sheffield
Department Name: Materials Science and Engineering
Abstract
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Organisations
- University of Sheffield (Lead Research Organisation)
- Cutting and Wear (Collaboration)
- Plasma Coatings Group (Collaboration)
- Keronite International (Collaboration)
- Cambridge Nanolitic Ltd (Collaboration)
- Wallwork-Cambridge/Tecvac Ltd (Collaboration)
- Defence Science and Technology Laboratory (Project Partner)
- Keronite International Ltd (Project Partner)
- Plasma Coatings (United Kingdom) (Project Partner)
Publications
Yeung WK
(2013)
In vitro biological response of plasma electrolytically oxidized and plasma-sprayed hydroxyapatite coatings on Ti-6Al-4V alloy.
in Journal of biomedical materials research. Part B, Applied biomaterials
Yerokhin A
(2010)
Pulse current plasma assisted electrolytic cleaning of AISI 4340 steel
in Journal of Materials Processing Technology
Yerokhin A
(2013)
System linearity quantification for in-situ impedance spectroscopy of plasma electrolytic oxidation
in Electrochemistry Communications
Werther, Samuel P.
(2012)
Process Control: Problems, Techniques, and Applications
Snizhko L
(2010)
Voltastatic studies of magnesium anodising in alkaline solutions
in Surface and Coatings Technology
Parfenov E
(2015)
Towards smart electrolytic plasma technologies: An overview of methodological approaches to process modelling
in Surface and Coatings Technology
Khan R
(2013)
Influence of current density and electrolyte concentration on DC PEO titania coatings
in Surface Engineering
Khan R
(2010)
Surface characterisation of DC plasma electrolytic oxidation treated 6082 aluminium alloy: Effect of current density and electrolyte concentration
in Surface and Coatings Technology
Gnedenkov S
(2014)
Composite hydroxyapatite-PTFE coatings on Mg-Mn-Ce alloy for resorbable implant applications via a plasma electrolytic oxidation-based route
in Journal of the Taiwan Institute of Chemical Engineers
| Description | The project has achieved breakthroughs in the fundamental understanding of the plasma electrolysis process, which is becoming increasingly important in many indusrial sectors as a means of enhancing the wear and corrosion resistance of lightweight metals such as aluminium and magnesium. This has been acheived through collaborative experimantal and modelling studies, and will result in improvements in process optimisation and in process diagnostics and on-line control. |
| Exploitation Route | Producers of plasma electrolytic oxidation processes and end-users of the coatings will benefit. |
| Sectors | Aerospace, Defence and Marine,Electronics,Energy,Environment,Manufacturing, including Industrial Biotechology,Transport,Other |
| Description | The output of the research is being used by producers of plasma electrolytic coatings and treatments |
| First Year Of Impact | 2011 |
| Sector | Aerospace, Defence and Marine,Electronics,Energy,Environment,Healthcare,Manufacturing, including Industrial Biotechology,Transport |
| Impact Types | Societal,Economic |
| Title | High speed synchronised electrical/optical monitoring of the PEO process, using parallel small area samples |
| Description | The electrical discharges that take place during PEO are central to understanding and control of the process. It's now known that they have a very short lifetime (~tens or hundreds of microseconds), but tend to occur in "cascades" that persist in the same location for hundreds or thousands of discharges, with a relatively short "incubation period" between each one (that probably corresponds to the period required for the large void left at the site concerned after collapse of the plasma to refill with electrolyte). This understanding has largely arisen from the technique developed in the Gordon Lab. for synchronised monitoring of the electrical current through, and the light emission from, a small area sample (~1 mm diameter) connected in parallel with the main sample. At any given time, there will be no more than one discharge occurring on the small sample, so the associated characteristics can be monitored. |
| Type Of Material | Improvements to research infrastructure |
| Year Produced | 2015 |
| Provided To Others? | Yes |
| Impact | This technology has led to detailed study of various characteristics of the PEO process, including the incidence of cathodic discharges, the "soft regime" etc. |
| URL | http://www.ccg.msm.cam.ac.uk/research-areas/the-plasma-electrolytic-oxidation-peo-process |
| Description | Link with industrial company |
| Organisation | Cambridge Nanolitic Ltd |
| Country | United Kingdom |
| Sector | Private |
| PI Contribution | Provision of research support |
| Collaborator Contribution | Provision of facilities and materials. |
| Impact | New processes and products |
| Start Year | 2006 |
| Description | Link with industrial company |
| Organisation | Cutting and Wear |
| Country | United Kingdom |
| Sector | Private |
| PI Contribution | Provision of research support |
| Collaborator Contribution | Provision of facilities and materials. |
| Impact | New processes and products |
| Start Year | 2006 |
| Description | Link with industrial company |
| Organisation | Keronite International |
| Country | United Kingdom |
| Sector | Private |
| PI Contribution | Provision of research support |
| Collaborator Contribution | Provision of facilities and materials. |
| Impact | New processes and products |
| Start Year | 2006 |
| Description | Link with industrial company |
| Organisation | Plasma Coatings Group |
| Country | United Kingdom |
| Sector | Private |
| PI Contribution | Provision of research support |
| Collaborator Contribution | Provision of facilities and materials. |
| Impact | New processes and products |
| Start Year | 2006 |
| Description | Link with industrial company |
| Organisation | Wallwork-Cambridge/Tecvac Ltd |
| Country | United Kingdom |
| Sector | Private |
| PI Contribution | Provision of research support |
| Collaborator Contribution | Provision of facilities and materials. |
| Impact | New processes and products |
| Start Year | 2006 |