Dual-Award PhD: Non-Linear Field Grading Materials for Advanced High-Voltage Cable Insulation Systems (UoM - Tokyo) The University of Manchester in United Kingdom

This dual-award PhD project, jointly offered by the University of Manchester and the University of Tokyo, focuses on the development of non-linear field grading materials (FGMs) for advanced high-voltage cable insulation systems. High-voltage (HV) power cables are critical for modern energy transmission, but are susceptible to failure due to ageing, defects, and mechanical damage. This project aims to create innovative FGMs that control electric field distributions at repair interfaces, mitigating stress concentrations and enhancing the long-term reliability of HVAC cables.

During the first two years at the University of Manchester, the student will design, synthesize, and characterize composite FGMs, working with filled polymer composites and conducting detailed structural, chemical, and morphological analyses. Comprehensive electrical and thermal characterization will establish structure-property relationships and optimize material performance. The final two years at the University of Tokyo will focus on advanced electrical testing, including dielectric property measurement, field distribution analysis, and ageing behavior under simulated high-voltage conditions. The project also involves modeling and validation of application-specific components to assess practical implementation in real-world cable repair systems.

Research objectives include developing polymer-based composites with FGMs, understanding the relationship between microstructure, filler dispersion, and electrical behavior, and providing design guidelines for practical HVAC cable repair technologies. The student will gain interdisciplinary expertise in materials science, polymer processing, dielectrics, and high-voltage engineering, with access to state-of-the-art facilities at both institutions. Collaboration with academic and industrial partners will provide valuable experience in applied research and technology translation for resilient power grids.

Up to four fully funded scholarships are available, covering tuition fees, standard living allowances for all four years, two years of UKRI-equivalent stipends, a travel budget, and research support. The University of Tokyo will provide equivalent stipends during the Japan phase. Applicants must meet the entry requirements of both institutions, including a relevant upper second-class degree (or equivalent), English language proficiency (IELTS 6.5 overall or equivalent), and successful completion of the University of Tokyo entrance examination. Willingness to study two years at each institution is required.

Applications are open to candidates from diverse backgrounds, and flexible study arrangements are considered. The deadline for applications is April 27, 2026. For further details and to apply, visit the project page or contact the admissions team at the University of Manchester.