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PhD: How ultraviolet exposure affects carbon-fibre composite performance

Project 2689 · Imperial College London · Department of Aeronautics, with co-supervision from the Department of Mechanical Engineering

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Save this opportunity and prepare around its actual requirements. Confirm deadlines and eligibility at the original source.

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Country or region
United Kingdom
Application deadline
2027-01-04 (confirm the exact time with the source)
Funding
Full tuition and £23,805 annual tax-free stipend for 3.5 years; Home, EU and international applicants are eligible.

The research opportunity

This 3.5-year PhD at Imperial College London studies the relationship between structure, ultraviolet (UV) photodegradation and performance in carbon-fibre-reinforced thermosets. The work focuses on how thermosetting epoxy polymers degrade under UV exposure and how polymer structure and composition affect UV resistance.

Research work, training and facilities

The student will combine UV-resistance measurements with visual and chemical analysis, mechanical testing and fracture-property assessment to map structure–performance relationships in a selected composite system. UV exposure can erode material surfaces and create microcracks in the resin; applied stress may help those cracks grow. The research aims to inform the development of more UV-resistant formulations, while retaining the mechanical and functional properties needed for applications such as aircraft and spacecraft structures. No specific performance gain or service life is promised.

Training includes composite-material analysis and characterisation, advanced-composite manufacturing and materials-science methods. Listed facilities include high-resolution microscopy, thermal analysis, UV/visible spectroscopy, Fourier-transform infrared spectroscopy (FTIR), atomic-force microscopy (AFM), a Q-SUN UV test chamber and mechanical-testing equipment. The supervisory team includes Prof Koon-Yang Lee in Aeronautics and Prof Ambrose Taylor in Mechanical Engineering, with an industry research scientist from Syensqo. The project also offers opportunities to present at conferences, publish in peer-reviewed journals and build professional networks.

Eligibility and application

The stated requirement is a first-class MEng/MSci degree or higher, or an international equivalent, in aerospace engineering, mechanical engineering or materials science. The project seeks applicants who are motivated, curious, analytical, communicative, organised, able to work independently and collaboratively, and willing to learn new research skills.

The award covers full tuition and a tax-free stipend of £23,805 per year for 3.5 years; Home, EU and international applicants are eligible. The deadline is 4 January 2027 at 23:59 UK time. The saved project page gives a start window of 1 August 2027 to 1 July 2028, while the admissions FAQ says “as soon as possible”; confirm which applies. Apply using the project instructions and reference AE0089; confirm the full application checklist, start date and current contact details before submitting.

Research and application brief

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Show report contents

PhD: How ultraviolet exposure affects carbon-fibre composite performance

Research snapshot: 6 November 2026

Quick Decision

Strong but verify fit. This 3.5-year Imperial Aeronautics studentship addresses UV-driven degradation in carbon-fibre thermosets. The project examines how ultraviolet exposure changes the structure and performance of carbon-fibre-reinforced thermosetting epoxy composites. UV can alter polymer chemistry and surface condition; microcracking, erosion and mechanical loading may interact, while the contribution of formulation and composite architecture is not settled for the target material system. The research aims to map structural and compositional features against UV resistance rather than promise a preselected improved resin. The advert offers full tuition and a £23,805 annual tax-free stipend to Home, EU and international applicants, with a 4 January 2027 deadline and a timing point that needs confirmation: the specific page lists 1 August 2027–1 July 2028, while the admissions FAQ says the successful AE0089 applicant can start as soon as possible. Before applying, confirm the formal entry-equivalence and ask the supervisor how the central technical question will be evaluated against available data and facilities. Structure–Photodegradation–Performance in Carbon-fibre Thermosets (AE0089) — official project page Aeronautics PhD opportunities and funding Aeronautics studentships frequently asked questions

Research Problem and Doctoral Work

What Is Unsolved and Why It Matters

The project examines how ultraviolet exposure changes the structure and performance of carbon-fibre-reinforced thermosetting epoxy composites. UV can alter polymer chemistry and surface condition; microcracking, erosion and mechanical loading may interact, while the contribution of formulation and composite architecture is not settled for the target material system. The research aims to map structural and compositional features against UV resistance rather than promise a preselected improved resin. This is a concrete research opportunity rather than a guaranteed engineering product: the work must show where the proposed method or evidence changes understanding or design decisions, and where uncertainty remains.

Work, Methods, and Potential Outputs

The advertised approach combines UV ageing with visual and chemical analysis, mechanical testing and fracture characterisation. The researcher can compare degradation indicators across compositions and connect changes in polymer structure to strength, stiffness, damage tolerance or crack growth. The listed environment includes microscopy, thermal analysis, UV/visible spectroscopy, FTIR, AFM, Q-SUN exposure and mechanical testing. A rigorous study should distinguish UV-only exposure from combined environmental ageing, track dose and specimen history, and state the limits of accelerated exposure when inferring service life. Industry participation supports relevance but does not guarantee commercial adoption. Potential outputs are defensible models, measurements or design insights. No particular discovery, prototype performance, publication, commercial outcome or job is promised by the available evidence. Structure–Photodegradation–Performance in Carbon-fibre Thermosets (AE0089) — official project page Keep offcuts cold Predicting filling efficiency in composite manufacture Mixed-plastic composite study

School, Programme and Field Context

The host is Imperial College London’s Department of Aeronautics. Its official page reports a joint 9th-place global position in the 2026 QS Mechanical, Aeronautical & Manufacturing Engineering subject ranking and summarizes strong REF 2021 research outputs, environment and impact. These are school/subject signals, not project-level quality measures. The PhD is advertised for 3.5 years; the department provides a general research timeline, but project-specific taught training and registration conditions are not specified. Imperial is the stated host and degree-awarding university; no joint award is advertised. Imperial Department of Aeronautics Imperial league tables QS Mechanical, Aeronautical & Manufacturing Engineering 2026 Aeronautics PhD timeline

Polymer-composite durability is important where lightweight structures face sunlight, heat, moisture and mechanical load. UV resistance cannot be inferred from a single accelerated test: matrix chemistry, fibre/matrix interface, coatings, exposure spectrum and service conditions all matter. This project may support aerospace, transport, composite-materials R&D, testing and durability engineering. Advanced-manufacturing sector reports indicate broad demand for engineering skills, not a specific hiring forecast for UV durability specialists. Keep offcuts cold Predicting filling efficiency in composite manufacture Mixed-plastic composite study UV and salt-fog ageing of carbon-fibre composites UV-driven degradation in 3D-printed continuous-fibre composites

Supervisor and Lab Assessment

Koon-Yang Lee and Ambrose Taylor are the academic supervisors; a Syensqo research scientist is also involved according to the advert. The Composites Centre pages and brochure document relevant characterisation infrastructure. Lee’s recent papers demonstrate polymer-composite and process expertise but are adjacent, not direct proof of UV-CFRP research. External UV-ageing studies help frame exposure mechanisms and test design. Confirm which facility access, industry contact and material formulations are actually committed to the student.

Recent Important Publications

  • Keep offcuts cold (2025) — Studies how storage/processing conditions affect a polymer composite material system. Shows recent group work on process-sensitive composite properties, adjacent to the project’s structure–performance analysis. Limitation: The material/process question is not direct UV degradation of carbon-fibre thermosets. ACS Applied Polymer Materials
  • Predicting filling efficiency in composite manufacture (2023) — Links composite manufacturing behaviour to measurable process outcomes. Supports relevant expertise in composite processing and characterisation. Limitation: It does not test the advertised thermoset photodegradation mechanisms. Composites Part A
  • Mixed-plastic composite study (2024) — Reports work on polymer composite formulation and material properties. Offers adjacent evidence of polymer-composite research activity and analysis methods. Limitation: Different polymer and reinforcement system; not direct evidence of UV resistance. ACS Applied Polymer Materials

Funding, Application, and Living Cost

The project advert states 3.5 years, full tuition coverage and a £23,805 annual tax-free stipend for Home, EU and international students. Applications close at 23:59 UK time on 4 January 2027; the project page lists 1 August 2027 to 1 July 2028, while the FAQ says the successful AE0089 applicant may start as soon as possible. Resolve this discrepancy with admissions before selecting an entry term. UKRI lists £23,805 as the 2026–27 London-weighted minimum; confirm later-year uprating and your fee category in the offer. Imperial estimates London living costs at about £1,821–£1,893 per month, excluding tuition and study materials. The stipend is therefore close to the published monthly budget before some academic and one-off costs. The department FAQ limits applicants to two projects in one academic year; if applying to two, they must have different entry terms. Structure–Photodegradation–Performance in Carbon-fibre Thermosets (AE0089) — official project page UKRI studentship stipend guidance Imperial London living costs 2026 Imperial tuition fee status guidance Aeronautics studentships frequently asked questions

Applicant Fit and Preparation

Required Background and Skills

The advert requires a first-class MEng/MSci or higher equivalent in Aeronautics, Mechanical Engineering or Materials-related study. Useful preparation includes polymer chemistry, composites, spectroscopy, fracture mechanics, experimental design and data analysis; these are preparation strengths, not additional published eligibility rules. Applicants can show careful laboratory practice, reproducible measurements and the ability to connect material structure with mechanical performance.

Preferred Experience and Suggested Preparation

Helpful preparation includes polymer chemistry, composites, spectroscopy, fracture mechanics, experimental design and data analysis. Applicants can describe careful laboratory practice, reproducible measurements and how they connected material structure to mechanical performance; these are preparation strengths rather than additional formal entry requirements. Aeronautics studentships frequently asked questions

Next Actions and Questions to Verify

Before Applying

Check subject equivalency, reference requirements, English-language evidence and the two-project entry-term rule on the current admissions pages.

At Interview

  • Which start date and entry term apply, given the project-page and FAQ wording differ?
  • Which epoxy and fibre systems, lay-up and UV exposure spectra are in scope?
  • How will UV effects be isolated from moisture, temperature and combined ageing?
  • Which Q-SUN, AFM, FTIR and mechanical-test facilities are guaranteed and how is access scheduled?
  • What role will the Syensqo scientist play in supervision, data sharing and material selection?
  • How will accelerated-ageing results be translated, cautiously, to service-life relevance?

Before Accepting an Offer

Request written confirmation of fee status coverage, stipend uprating, award duration, registration/degree-awarding arrangements, computing or facility access, and the expected balance of research methods.

Evidence and Sources

Sources

The listing may come from a university or recruitment platform. Check the notice and official sources in the report for current application requirements. View the recruitment source

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