Management Structure
Integration and coordination within the Center will be approached from two perspectives – one driven by the research goals and the other driven by the thrust areas. The Office of the Director will ensure integration between activities and tasks that tie to the Center’s research goals. To visualize how our carefully organized and appropriately focused research plan drives integration, it is helpful to consider a high-level overview of the tasks associated with each research goal shown in the Figure below.
The Temperature Extremes Goal and the Electron-Phonon Coupling Goal represent the forefront of thermal transport research. To make these tractable problems we limit our focus to defect free single crystals. Understanding these fundamental mechanisms is a required step towards accurately treating thermal transport under irradiation (the subject of our remaining research goals).
The Impact of Defects on Thermal Transport Goal has an oxide and a nitride focus. For the oxide portion, we take a thorough approach by considering a broad spectrum of defects from point defects to large clusters. For the nitride portion, our focus is limited primarily to point defects. We take a similar approach with the Impact of Interfaces on Thermal Transport Goal, by considering defect clustering for oxide interfaces and limiting our focus for nitride interfaces. Meeting these goals will require close interaction and coordination between the computational and the experimental research teams.
The research conducted within the Center represents coordinated achievements involving either input/output interconnections or critical prediction/validation interactions that has and will continue to result in impactful publications and review articles.
No irradiation induced effects
- Measuring phonons at temperature extremes
- Measuring properties at high temps, under pressure
- Comparing with first-principles prediction
- Gauging impact of electron correlation
- Measuring electron and phonon structure
- Measuring electron and phonon thermal conductivity
- Comparing with first-principle prediction
- Gauging impact of electron correlation
Irradiation induced effects
- Measurement orthongonality for point defects
- Nature and distribution of dislocation loops
- Critical insight using evolution models
- Impact of defects on thermal conductivity
- Measure orthongonality for point defects
- Impact of irradiation defects on thermal transport
- Thermal conductivity (electrons and phonons)
- Impact of grain boundaries on defect evolution
- Grain boundary conductance
- Localized modes
- Comparing measurements with prediction
- Impact of hetero-interfaces on defect evolution
- Interface conductance
- Role of electrons and phonons
Institutional Contribution
Last Name | First Name | Institution | Role | Responsibilities and Technical Scope |
---|---|---|---|---|
Hurley | David | INL | Director, Executive Committee | Overall management and direction of TETI. Sets strategy and priorities. |
Khafizov | Marat | OSU | Deputy Director, Oxide Thrust Lead, Executive Committee | Experiment coordinator, spectrum of defects challenge. |
Marianetti | Chris | Columbia | Nitride Thrust Lead, Executive Committee | Electron-phonon coupling, challenge, modeling coordinator. |
Jin | Miaomiao | PSU | Diversity Chair, Technical Lead, Executive Committee | Atomistic modeling of phonon transport. |
Manley | Michael | ORNL | Technical Lead | Lattice anharmonicity challenge |
Hua | Zilong | INL | Technical Lead | Oxide interface challenge |
May | Brelon | INL | Technical Lead | Nitride interface challenge |
Zhang | Yanwen | INL | Technical Lead | Irradiation defects |
Gofryk | Krzysztof | INL | Technical Lead | Electronic structure measurements |
Khanolkar | Amey | INL | Technical Lead | Microstructure characterization |
Bawane | Kaustubh | INL | Technical Lead | Microstructure characterization |
Kombaiah | Boopathy | INL | Technical Lead | Microstructure characterization |
Jiang | Chao | INL | Technical Lead | Microstructure evolution modeling |
Zhang | Yongfeng | UW | Technical Lead | Microstructure evolution modeling |
Mann | Mathew | AFRL | Technical Lead | Sample syntheses (oxides) |
Sooby | Elizabeth | UTSA | Technical Lead | Sample synthesis (nitrides) |
Selim | Farida | ASU | Technical Lead | Microstructure characterization |
Advisory Committees
External
• Professor William Weber (University of Tennessee – Irradiation Effects in Fuels and Materials)
• Professor Michele Manuel (University of Florida – Atom Probe Tomography)
• Professor Kristjan Haule (Rutgers University – Computational Electronic Structure)
• Professor Keith Nelson (Massachusetts Institute of Technology – Experimental Methods in Condensed Matter Physics)
• Dr. James Belak (Lawrence Livermore National Laboratory – Computational Materals Science)