Academic Journal
Deuterium plasma induced preferential erosion in ultra-high temperature ceramics TiB2 and ZrB2
| العنوان: | Deuterium plasma induced preferential erosion in ultra-high temperature ceramics TiB2 and ZrB2 |
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| المؤلفون: | L. Nuckols, M.J. Baldwin, H.M. Meyer III, D. Nishijima, M.I. Patino, C.M. Parish, J. Rapp |
| المصدر: | Nuclear Fusion, Vol 64, Iss 12, p 124001 (2024) |
| بيانات النشر: | IOP Publishing, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Nuclear and particle physics. Atomic energy. Radioactivity |
| مصطلحات موضوعية: | plasma-material interaction, ultra-high temperature ceramics, PISCES-RF, linear plasma devices, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798 |
| الوصف: | Steady-state deuterium plasma exposures were performed on ultra-high temperature ceramics titanium diboride (TiB _2 ) and zirconium diboride (ZrB _2 ) using the PISCES-RF linear plasma device (LPD) as early screening for first wall, plasma-facing applications. Deuterium plasma exposures were performed using 40 eV ion energies at 240, 525, and 800 °C sample temperatures and 90 eV ion energies at 240 °C sample temperatures to analyze TiB _2 and ZrB _2 surface morphology and chemistry evolution behavior. Post-plasma exposure chemistry characterization of the near surface ( $ \lt $ 50 nm) region of the samples all show transition metal enrichment, indicating boron preferential erosion. Transition metal to boron fractions vary with plasma exposure temperature under the 40 eV ion energy; metal enrichment is maximized at 800 °C and then minimized at 525 °C. SEM micrographs of all plasma exposed sample surfaces show no significant or noticeable plasma induced damage from cracking or blistering. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1741-4326 0029-5515 |
| Relation: | https://doaj.org/toc/0029-5515 |
| DOI: | 10.1088/1741-4326/ad7968 |
| URL الوصول: | https://doaj.org/article/e106a8488d37483ebc6e5aee91745ea2 |
| رقم الانضمام: | edsdoj.106a8488d37483ebc6e5aee91745ea2 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 17414326 00295515 |
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| DOI: | 10.1088/1741-4326/ad7968 |