Full Text Available
Note: Clicking the button above will open the full text document at the original institutional repository in a new window.
Microstructural and mechanical characterization of silicon carbide irradiated with 158 MeV xenon swift heavy ions.
Dissertation (MSc (Physics))--University of Pretoria, 2025.
Saved in:
| Other Authors: | |
|---|---|
| Format: | Thesis |
| Published: |
University of Pretoria
2025
|
| Subjects: | |
| Tags: |
No Tags, Be the first to tag this record!
|
| _version_ | 1867613437022961664 |
|---|---|
| access_status_str | Open Access |
| author2 | Thabethe, Thabsile T. |
| author_browse | Thabethe, Thabsile T. |
| author_facet | Thabethe, Thabsile T. |
| collection | Thesis |
| dc_rights_str_mv | © 2023 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Dissertation (MSc (Physics))--University of Pretoria, 2025. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/100941 |
| institution | University of Pretoria (South Africa) |
| last_indexed | 2026-06-10T12:36:07.570Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/100941 Microstructural and mechanical characterization of silicon carbide irradiated with 158 MeV xenon swift heavy ions. Thabethe, Thabsile T. u16166176@tuks.co.za Njoroge, E.G. (Eric G.) Mashabela, Tshegofatso Boys UCTD Sustainable Development Goals (SDGs) Silicon Carbide (SiC) Irradiation Xenon Swift heavy ions Mechanical properties Tri-structural Isotropic (TRISO) fuel particle Dissertation (MSc (Physics))--University of Pretoria, 2025. The structural and mechanical properties of 3C-SiC substrates subjected to 158 MeV Xe²⁶⁺ swift heavy ion (SHI) irradiation at different fluences were investigated. To study the changes induced by irradiation 3C-SiC was irradiated with swift heavy ions (SHI) to fluences of 1×10¹⁰, 1×10¹¹, and 1×10¹³ ions/cm² at room temperature (RT). To achieve this, Stopping and ion range in matter (SRIM) simulations will be employed to predict the behavior of SiC under irradiation conditions, providing insight into defect formation and energy deposition profiles. Raman spectroscopy will be utilized to analyze structural changes at the atomic level, while Vickers’ hardness testing will evaluate changes in the material's hardness. Additionally, Atomic Force Microscopy (AFM) will be used to study surface structural modifications and to extract mechanical properties such as Young's modulus and compressibility. Results revealed defect-induced hardening at lower fluences and significant degradation of mechanical properties at the highest fluence, attributed to defect accumulation and clustering. The findings indicated that while 3C-SiC functions effectively as barrier material, it may degrade once it reaches its irradiation threshold. This enhances the understanding of SiC’s behavior under irradiation, crucial for its application in nuclear reactors and aerospace technologies. Council for Scientific and Industrial Research (CSIR) Physics MSc (Physics) Restricted Faculty of Natural and Agricultural Sciences SDG-07: Affordable and clean energy 2025-02-14T14:06:52Z 2025-02-14T14:06:52Z 2025-05-05 2025-01-20 Dissertation * A2025 http://hdl.handle.net/2263/100941 10.25403/UPresearchdata.28417730 © 2023 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria |
| spellingShingle | UCTD Sustainable Development Goals (SDGs) Silicon Carbide (SiC) Irradiation Xenon Swift heavy ions Mechanical properties Tri-structural Isotropic (TRISO) fuel particle Microstructural and mechanical characterization of silicon carbide irradiated with 158 MeV xenon swift heavy ions. |
| title | Microstructural and mechanical characterization of silicon carbide irradiated with 158 MeV xenon swift heavy ions. |
| title_full | Microstructural and mechanical characterization of silicon carbide irradiated with 158 MeV xenon swift heavy ions. |
| title_fullStr | Microstructural and mechanical characterization of silicon carbide irradiated with 158 MeV xenon swift heavy ions. |
| title_full_unstemmed | Microstructural and mechanical characterization of silicon carbide irradiated with 158 MeV xenon swift heavy ions. |
| title_short | Microstructural and mechanical characterization of silicon carbide irradiated with 158 MeV xenon swift heavy ions. |
| title_sort | microstructural and mechanical characterization of silicon carbide irradiated with 158 mev xenon swift heavy ions |
| topic | UCTD Sustainable Development Goals (SDGs) Silicon Carbide (SiC) Irradiation Xenon Swift heavy ions Mechanical properties Tri-structural Isotropic (TRISO) fuel particle |
| url | http://hdl.handle.net/2263/100941 |