NSUF 12-363: Correlating SiC grain size and grain boundary orientation with strength and SiC layer growth conditions
Objective: The overarching objective for proposed work is to contribute to the SiC knowledge base by answering key questions about SiC properties under extreme conditions. Specifically, this work seeks to reveal correlations between SiC layer grain size, grain boundary orientation and strength, layer growth conditions (temperature and time.) Approach: An international research team, led by Dr. Isabella van Rooyen at INL, incorporates Professor Mary Lou Dunzik-Gougar (and PhD student) at Idaho State University and Professors Japie Engelbrecht and Jan Neethling (and PhD student) at Nelson Mandela Metropolitan University, South Africa. SiC samples previously studied at NMMU is made available for these studies, which will lessen the project cost and time. The SiC samples in question comprise five batches differing with respect to SiC layer thickness, deposition temperature and deposition method. The samples have spherical geometry and have been characterized for compressive strength and for hardness (via nano-indentation.) These hardness data also are available for reference in the work proposed here. Work proposed requires characterization via Focused Ion Beam (FIB) and/or Electron Back Scatter Diffraction (EBSD) at the Center for Advanced Energy Studies (CAES) to determine grain size and grain boundary orientations of the SiC layers. An associated deliverable is an EBSD technique for small samples with different geometries. Samples are drawn from 5 batches, which differ by production parameters including SiC layer deposition method, time and temperature. From each batch, samples were chosen for annealing at a temperature ranging from 1000°C to 2100°C with annealing time varying from 10 minutes to 100 hours. It is envisaged that 20 samples will be analysed by ISU and 16 samples from NMMU, thereby providing a data set of 36 values and comparative analysis will be done based on temperature influence and batch influences. These analyses are expected to take approximately 2 months of full time work, which would be conducted as early as March and no later than August 2012. Parallel analyses will be performed at NMMU and the results will be compared to, and potentially combined.
Tilleggsinformasjon
| Felt | Verdi |
|---|---|
| Awarded Institution | Idaho National Laboratory |
| Embargo End Date | 2026-02-27 |
| Facility Tech Lead | Alina Montrose, Mukesh Bachhav |
| NSUF Call | FY 2012 RTE Solicitation |
| PI | Isabella van Rooyen |
| Project Member | Mary Lou Dunzik-Gougar - Idaho State University (https://orcid.org/0000-0002-8135-629X) |
| Project Member | Dr. Isabella van Rooyen, Senior Technical Advisor Advanced Material Systems - Pacific Northwest National Laboratory (https://orcid.org/0000-0001-8524-938X) |
| Project Type | RTE |
| Publication | The Effect of High-Temperature Annealing on the Grain Characteristics of a Thin Chemical Vapor Deposition Silicon Carbide Layer Isabella van Rooyen, Mary Lou Dunzik-Gougar Microscopy and Microanalysis, 19 (Supplement 2) 19 2013-08-01 http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=9033342 |
| Publication | Advanced Electron Microscopic Examination Aided in the Identification of Silver and Palladium in Irradiated TRISO Coted Particles Isabella van Rooyen TMS 2014 2014-02-16 - 2014-02-20 |
| Publication | Methods for identification of crystallographic parameters of irradiated SiC to understand fission product transport The 3rd Workshop on HTGR SiC Material Properties 2014-09-30 - 2014-10-01 |
| Publication | Methods for identification of crystallographic parameters of irradiated SiC to understand fission product transport The 3rd Workshop on HTGR SiC Material Properties 2014-09-30 - 2014-10-01 |
| Publication | Methods for identification of crystallographic parameters of irradiated SiC to understand fission product transport The 3rd Workshop on HTGR SiC Material Properties 2014-09-30 - 2014-10-01 |
| Publication | Development and Application of Advanced Characterization Techniques to understand Irradiated TRISO Fuel Behavior The 3rd Workshop on HTGR SiC Material Properties 2014-09-30 - 2014-10-01 |
| Publication | Approach and Micro-analysis techniques applied to study fission product transport mechanisms in neutron irradiated SiC layers IMRC XXIII 2014-08-17 - 2014-08-21 |
| Publication | Identification of Ag-phase in TRISO fuels by Atom Probe Tomography Materials Science & Technology 2016-10-23 - 2016-10-27 |
| Publication | Microstructure Characterization of TRISO fuels by Atom Probe Tomography TMS2016, 145th Annual Meeting & Exhibition 2016-02-14 - 2016-02-18 |
| Publication | Microstructure Characterization of TRISO fuels by Atom Probe Tomography TMS2016, 145th Annual Meeting & Exhibition 2016-02-14 - 2016-02-18 |
| Publication | Microstructure Characterization of TRISO fuels by Atom Probe Tomography TMS2016, 145th Annual Meeting & Exhibition 2016-02-14 - 2016-02-18 |
| Publication | Correlation of fission product transport to grain boundary character in neutron irradiated tristructural isotropic coated nuclear fuel particles TMS2016, 145th Annual Meeting & Exhibition 2016-02-14 - 2016-02-18 |
| Publication | Effect of Sample Preparation Techniques on Grain Boundary Characterization of Annealed TRISO-Coated Particles Mary Lou Dunzik-Gougar, Isabella van Rooyen Nuclear Technology 196(1) 2016-10-31 https://www.researchgate.net/publication/308766634_Sample_Preparation_Techniques_for_Grain_Boundary_Characterization_of_Annealed_TRISO-Coated_Particles |
| Publication | Electron Microscopy Study of Pd, Ag, and Cs in Carbon Areas in the Locally Corroded SiC Layer in a Neutron-Irradiated TRISO Fuel Particle Haiming Wen, Isabella van Rooyen, John Hunn, Tyler Gerczak Journal of the European Ceramic Society 38 (2018) 2016-10-31 https://www.sciencedirect.com/science/article/abs/pii/S0955221918302991 |
| Publication | Influence of SiC grain boundary character on fission product transport in irradiated TRISO fuel Journal of Nuclear Materials 473 https://www.sciencedirect.com/science/article/abs/pii/S0022311516300381 |
| Publication | Influence of SiC grain boundary character on fission product transport in irradiated TRISO fuel Journal of Nuclear Materials 473 2016-01-01 https://www.sciencedirect.com/science/article/abs/pii/S0022311516300381 |
| Publication | Precession electron diffraction for SiC grain boundary characterization in unirradiated TRISO fuel Nuclear Engineering and Design 305 2016-08-15 https://www.sciencedirect.com/science/article/abs/pii/S002954931630142X |
| Publication | STEM/EDS Analysis of Fission Products in Irradiated TRISO Coated Particles of the AGR-1 Experiment Journal of Nuclear Materials 475 https://www.sciencedirect.com/science/article/abs/pii/S0022311516300812 |
| Publication | STEM/EDS Analysis of Fission Products in Irradiated TRISO Coated Particles of the AGR-1 Experiment Journal of Nuclear Materials 475 https://www.sciencedirect.com/science/article/abs/pii/S0022311516300812 |
| Publication | STEM/EDS Analysis of Fission Products in Irradiated TRISO Coated Particles of the AGR-1 Experiment Journal of Nuclear Materials 475 https://www.sciencedirect.com/science/article/abs/pii/S0022311516300812 |
| Publication | STEM/EDS Analysis of Fission Products in Irradiated TRISO Coated Particles of the AGR-1 Experiment Journal of Nuclear Materials 475 (2016) https://www.sciencedirect.com/science/article/abs/pii/S0022311516300812 |
| Publication | The Effect of High Temperature Annealing on the Grain Characteristics of a Thin Chemical Vapor Deposition Silicon Carbide Layer Microscopy and Microanalysis 19 (Suppl. 2) https://www.researchgate.net/publication/309295742_The_Effect_of_High_Temperature_Annealing_on_the_Grain_Characteristics_of_a_Thin_Chemical_Vapor_Deposition_Silicon_Carbide_Layer |
| Publication | Distribution of fission products palladium, silver, cerium and cesium in the un-corroded areas of the locally corroded SiC layer of a neutron irradiated TRISO fuel particle Haiming Wen, Isabella van Rooyen Journal of the European Ceramic Society 37 (2017) 2017-04-28 https://www.sciencedirect.com/science/article/abs/pii/S0955221917302455 |
| RTE Number | 363 |