PhD Student to crack arrest toughness evaluation with standard and sub‑sized specimens on unirradiated and neutron irradiated ferritic steel for nuclear applications
Location: PSI Laboratory for Energy Systems Analysis (LEA), Paul Scherrer Institute, Villigen PSI, Switzerland.
Posted on 19 November 2025.
We are looking for a PhD Student to conduct research on arrest toughness in the ductile‑to‑brittle transition region of unirradiated and irradiated ferritic steels for nuclear applications. You will develop innovative measurement techniques, perform fractographic observations, model crack arrest conditions using finite element simulations, supervise student interns, and publish results in scientific journals and conferences.
Your tasks
* PhD thesis on arrest toughness in the ductile‑to‑brittle transition region of unirradiated and irradiated ferritic steels for nuclear applications.
* Development of innovative techniques to measure arrest toughness in ferritic steels using standard and sub‑sized specimens.
* Fractographic observations to analyze crack path and arrest locations.
* Modeling of static and dynamic crack arrest conditions with finite element simulations.
* Supervision of semester students and/or internships.
* Publication of results in scientific journals and at international conferences.
Your profile
* Master’s degree in Materials Science or Physics with a solid background in metallurgy.
* Practical experience in material testing and metallographic characterization.
* Very good communication skills in English; German working knowledge is an asset.
Benefits
Our institution is based on interdisciplinary, innovative and dynamic collaboration. You will receive systematic on‑the‑job training, personal development opportunities, modern employment conditions, and on‑site infrastructure to support work‑life balance.
Application deadline: 19 December 2025 (including references and address of referees). The position number is Index‑Nr. 4603‑21899.
For further information, contact Prof. PD Dr Philippe Spätig, phone +41 56 310 29 34, or email philippe.spatig@psi.ch.
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