Fusion Materials Computational Materials Science Postdoctoral Researcher
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Job Location:
Livermore, CA - USA
Monthly Salary:
Not Disclosed
Posted on:
18 hours ago
Vacancies:
1 Vacancy
Job Summary
We have an opening for a Computational Materials Science Postdoctoral Researcher to participate in research on the development of refractory high-entropy alloys (RHEAs) for survivability in fusion energy environments. You will be part of an interdisciplinary team focused on designing new alloys with enhanced resistance to radiation-induced swelling and hardening under fusion conditions that combines multi-scale modeling experiments and AI. To tackle this challenge you will be a creative force in the development of an advanced multi-scale modeling framework integrating First-Passage Kinetic Monte Carlo (FP-KMC) on-lattice KMC and atomistic methods aiming to enable atomic-scale predictions of microstructural evolution in complex alloys under irradiation over reactor-relevant timescales.
This position is in the Actinides and Lanthanide Science group within the Materials Science Division.
In this role you will
- Develop and validate a multiscale simulation framework for radiation-induced defect evolution in complex alloys focusing on refractory high entropy alloys (RHEAs).
- Implement the framework in parallel simulation codes intended to run on LLNL supercomputers.
- Integrate FP-KMC on-lattice KMC and MD methods to achieve atomic-resolution modeling over extended timescales.
- Parameterize defect migration energies from atomistic simulations and incorporate results into KMC simulations.
- Perform MD simulations to predict primary damage cascades and point defect production rates.
- Analyze simulation outputs to predict macroscopic swelling and strain hardening.
- Interface with experimentalists and AI practitioners to validate models and propose directions for alloys property optimization.
- Work both independently and collaborate with others in a multidisciplinary team environment to accomplish program goals.
- Publish research results in peer-reviewed scientific journals and present results at external conferences seminars and/or technical meetings.
- Perform other duties as assigned.
Qualifications :
- PhD in Materials Science Condensed Matter Physics Nuclear Engineering Computational Science Applied Math or a closely related field.
- Demonstrated experience in atomistic simulation methods (e.g. Molecular Dynamics Kinetic Monte Carlo).
- Ability to independently develop massively parallelized codes using C/C/Python and proficiency in high-performance computing environments.
- Strong analytical and problem-solving skills.
- Proficient verbal and written communication skills as reflected in effective presentations at meetings and a demonstrated strong publication record.
- Initiative and interpersonal skills with desire and ability to work in a collaborative multidisciplinary team environment.
Qualifications We Desire
- Experience with multiscale modeling frameworks and integration of multiple simulation methods.
- Familiarity with advanced KMC algorithms for defect evolution and/or discrete event simulations.
- Background in modeling radiation effects in metals or alloys / high entropy alloys.
- Experience in the design of algorithms development of simulation codes and their implementation and validation.
Additional Information :
Position Information
This is a Postdoctoral appointment with the possibility of extension to a maximum of three years open to those who have been awarded a PhD at time of hire date.
Why Lawrence Livermore National Laboratory
- Included in 2025 Best Places to Work by Glassdoor!
- Flexible Benefits Package
- 401(k)
- Relocation Assistance
- Education Reimbursement Program
- Flexible schedules (*depending on project needs)
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Remote Work :
No
Employment Type :
Full-time
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