NSUF 19-1663: Ion irradiation of ThO2 and UO2 single crystals
The technical objective of this RTE is to generate dislocation loop dominated microstructure in two model oxide fuels, ThO2 and UO2 . Single crystals will be irradiated using 2 MeV protons at high temperature at Texas A&M University. These irradiation conditions provide relatively uniform damage profile over several micrometers depths suitable for subsequent thermal transport measurements. Following the ion irradiation, quantitative analysis of radiation induced dislocation loops including size and density will be performed using transmission electron microscope (TEM) at Idaho National Laboratory (INL). The TEM samples will be prepared using focused ion beam (FIB) system at INL. After completion of this RTE, the thermal transport of irradiated ThO2 and UO2 crystals will be measured using modulated thermoreflectance technique at either The Ohio State University (OSU) or INL. These results will be used to establish relationship between dislocation loops and thermal conductivity in ThO2 and UO2 crystals.
Dodatne informacije
| Polje | Vrijednost |
|---|---|
| Awarded Institution | The Ohio State University |
| Embargo End Date | 2020-11-08 |
| Facility Tech Lead | Alina Montrose, Lin Shao |
| NSUF Call | FY 2019 RTE 1st Call |
| PI | Marat Khafizov |
| PI Email | [email protected] |
| PI Phone Number | 614-292-2544 |
| Project Member | David Hurley - Idaho National Laboratory |
| Project Member | Dr. Lingfeng He, Associate Professor - North Carolina State University (https://orcid.org/0000-0003-2763-1462) |
| Project Member | Professor Marat Khafizov, Associate Professor - The Ohio State University (https://orcid.org/0000-0001-8171-3528) |
| Project Notes | Awarded on 02/08/2019 |
| Project Type | RTE |
| Publication | Influence of Irradiation-induced Microstructural Defects on the Thermal Conductivity of Single Crystal Thorium Dioxide Marat Khafizov, Amey Khanolkar, Zilong Hua, Cody Dennett, wangthink Wang, Tiankai Yao, Lingfeng He, Jian Gan, David Hurley TMS 2020 2020-02-23 - 2020-02-27 |
| Publication | The influence of lattice defects, recombination, and clustering on thermal transport in single crystal thorium dioxide Lingfeng He APL Materials 8 2020-11-04 https://doi.org/10.1063/5.0025384 |
| Publication | An integrated experimental and computational investigation of defect and microstructural effects on thermal transport in thorium dioxide Marat Khafizov, Lingfeng He, Cody Dennett, David Hurley, Zilong Hua, Amey Khanolkar, Anter EL-AZAB, Kaustubh Bawane Acta Materialia 213 2021-05-18 https://doi.org/10.1016/j.actamat.2021.116934 |
| Publication | TEM Characterization of Dislocation Loops in Proton Irradiated Single Crystal ThO2 Marat Khafizov, Kaustubh Bawane, Tiankai Yao, Aaron French, Lin Shao, Jian Gan, David Hurley, Lingfeng He Journal of Nuclear Materials 552 2021-05-05 https://doi.org/10.1016/j.jnucmat.2021.152998 |
| Publication | Inferring Relative Dose-dependent Color Center Populations in Proton Irradiated Thoria Single Crystals using Optical Spectroscopy Marat Khafizov, Amey Khanolkar, David Hurley, Cody Dennett, Zilong Hua Physical Chemistry Chemical Physics 24 2022-02-21 https://doi.org/10.1039/D1CP05191A |
| RTE Number | 1663 |