(EPSRC) High-Entropy Coatings for Hydrogen Gas Turbines

This PhD project at The University of Manchester focuses on developing high-entropy alloy (HEA) coatings for hydrogen gas turbines, addressing critical challenges in environmental resistance and compatibility with additive manufacturing (AM) substrates. As the aviation and power generation sectors transition to decarbonisation, hydrogen-fuelled engines are being developed, but burning hydrogen produces significantly more high-velocity steam than conventional fuels, accelerating coating degradation and increasing lifecycle costs. The project aims to design coatings with enhanced resistance to hot-steam conditions, crucial for extending component lifespan and reducing maintenance costs in hydrogen gas turbines. In parallel, the gas turbine industry is rapidly adopting additive manufacturing to produce complex, lightweight components. Many of these 3D-printed parts require protective coatings, yet the compatibility between coatings and AM substrates is not well understood. This research will bridge that gap, supporting the wider adoption of AM in high-temperature environments. Using HEA principles, the project hypothesises that the exceptional thermal stability and sluggish diffusion kinetics of HEAs make them ideal for resisting oxidation and corrosion in high-temperature steam. Thermodynamic modelling and machine learning will guide the identification of optimal compositions for oxidation resistance, mechanical integrity, and compatibility with AM superalloys. Coatings will be fabricated and rigorously tested under high-velocity steam conditions, with degradation mechanisms characterised using advanced electron microscopy and modelling techniques. The research offers opportunities for close collaboration with leading industry partners, providing valuable exposure to industrial research environments and real-world challenges. Outcomes will validate a new design framework for environmentally resistant HEA coatings and contribute to sustainable solutions supporting hydrogen-powered and additively manufactured gas turbine systems. The University of Manchester is committed to fairness, inclusion, and respect, welcoming applications from all backgrounds and identities. All PhD places are awarded on merit, and flexible study arrangements (including part-time options) may be considered. The Department of Materials provides a vibrant research environment with access to state-of-the-art facilities and expertise in ceramics and metallurgy. Funding: This 3.5-year PhD studentship is open to Home (UK) and EU students with settled status, with exceptional international candidates also considered. The successful candidate will receive a tax-free stipend at the UKRI rate (£20,780 for 2025/26, subject to annual uplift), and tuition fees will be paid. The stipend is expected to increase annually. The start date is October 2026. Eligibility: Applicants should have, or expect to achieve, at least a 2.1 honours degree or a master’s (or international equivalent) in a relevant science or engineering discipline. A supporting statement outlining motivation, research experience, and skills is mandatory. CV, transcripts, certificates, and contact details for two referees (with official email addresses) are required. English language certificate may be needed for non-native speakers. Application Window: Applications are accepted year-round, but early submission is recommended as the advert may be removed once the position is filled. How to Apply: Submit an online application via the university website . Contact the supervisors before applying and include your academic background and motivation. Upload transcripts, certificates, CV, supporting statement, and referee contact details.