دورية أكاديمية
An SPS-RS Technique for the Fabrication of SrMoO4 Powellite Mineral-like Ceramics for 90Sr Immobilization
| العنوان: | An SPS-RS Technique for the Fabrication of SrMoO4 Powellite Mineral-like Ceramics for 90Sr Immobilization |
|---|---|
| المؤلفون: | Anton A. Belov, Oleg O. Shichalin, Evgeniy K. Papynov, Igor Yu. Buravlev, Arseniy S. Portnyagin, Semen A. Azon, Alexander N. Fedorets, Anastasia A. Vornovskikh, Erhan S. Kolodeznikov, Ekaterina A. Gridasova, Anton Pogodaev, Nikolay B. Kondrikov, Yun Shi, Ivan G. Tananaev |
| المصدر: | Materials, Vol 16, Iss 17, p 5838 (2023) |
| بيانات النشر: | MDPI AG, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Technology LCC:Electrical engineering. Electronics. Nuclear engineering LCC:Engineering (General). Civil engineering (General) LCC:Microscopy LCC:Descriptive and experimental mechanics |
| مصطلحات موضوعية: | ceramics, strontium molybdate, powellite, radionuclides, radioactive waste management, solid-phase synthesis, Technology, Electrical engineering. Electronics. Nuclear engineering, TK1-9971, Engineering (General). Civil engineering (General), TA1-2040, Microscopy, QH201-278.5, Descriptive and experimental mechanics, QC120-168.85 |
| الوصف: | This paper reports a method for the fabrication of mineral-like SrMoO4 ceramics with a powellite structure, which is promising for the immobilization of the high-energy 90Sr radioisotope. The reported method is based on the solid-phase “in situ” interaction between SrO and MoO3 oxides initiated under spark plasma sintering (SPS) conditions. Dilatometry, XRD, SEM, and EDX methods were used to investigate the consolidation dynamics, phase formation, and structural changes in the reactive powder blend and sintered ceramics. The temperature conditions for SrMoO4 formation under SPS were determined, yielding ceramics with a relative density of 84.0–96.3%, Vickers microhardness of 157–295 HV, and compressive strength of 54–331 MPa. Ceramic samples demonstrate a low Sr leaching rate of 10−6 g/cm2·day, indicating a rather high hydrolytic stability and meeting the requirements of GOST R 50926-96 imposed on solid radioactive wastes. The results presented here show a wide range of prospects for the application of ceramic matrixes with the mineral-like composition studied here to radioactive waste processing and radioisotope manufacturing. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1996-1944 |
| Relation: | https://www.mdpi.com/1996-1944/16/17/5838; https://doaj.org/toc/1996-1944 |
| DOI: | 10.3390/ma16175838 |
| URL الوصول: | https://doaj.org/article/465fc91b69194638a97de3b0e8cdf3fd |
| رقم الأكسشن: | edsdoj.465fc91b69194638a97de3b0e8cdf3fd |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 19961944 |
|---|---|
| DOI: | 10.3390/ma16175838 |