This invention is based on the application of a hybrid organic/inorganic treatment onto an exposed surface – either as a stand-alone treatment or as a sealant. The treatment is applied using an electrochemical deposition technique, allowing for the development of conformal coatings, irrespective of design complexity. Layer thicknesses are low (10-100nm) but resistance in corrosive marine environments indicate corrosion rates comparable to technologies currently employed by the aerospace and automotive industries.
Corrosion rates are reduced by between 103 and 105 times, dependant on the nature of the porous coating. Tests on metallic coatings indicated a reduction in corrosion rates of approximately 103-104 while tests on ceramic coatings indicated a reduction in corrosion rates of approximately 105. By applying the hybrid treatment as a sealant treatment onto a porous wear resistant coating, concerns regarding the effect of mechanical damage are dramatically reduced. In addition, surface roughness levels are similar to electropolished finishes.
Description of the technology
DIT researchers have developed an advanced surface treatment for the protection of surfaces against corrosion and combined wear/corrosion (Tribocorrosion) degradation. The global thermal spray industry is worth about €5B per annum (based on 2003 estimates and an annual growth of 6.7%). Current sealant technologies are either ineffective or, based on industry responses, are expensive, with respect to bespoke sealant treatments. Therefore, sealant treatments, to-date, have had limited long-term success and associated industries have underestimated the importance of an effective sealant treatment. The technology outlined here is accessible both financially and technologically. It is therefore proposed that this developed technology will revolutionise industries using or applying porous wear resistant coatings.
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DIT Hothouse is the award-winning Innovation and Knowledge Transfer Office at Dublin Institute of Technology, responsible for the commercialisation of intellectual property arising from DIT research. DIT Hothouse is the hub of innovation and technology transfer activities in DIT, the place where business meets innovation. DIT Hothouse has a range of spinout technologies available to industry across Life Sciences, Food, ICT, Software, Industrial Technology, Manufacturing and Clean Technologies. Our team works with students, lecturers and research teams across DIT as well as with entrepreneurs, industry leaders and investors. Through the DIT Hothouse New Frontiers Startup Programme, we provide a startup incubator for innovative and promising startup companies.
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