XPS Investigation of ceramic matrixes for disposal of long-living radioactive waste products
The synthesis of ceramic matrixes for the long-term storage of highly active radionuclide wastes and determination of physical and chemical forms of radionuclides in them is one of the important problems in radioecology. It enables to create purpose fully materials for the long-term storage of radio...
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| Format: | Article |
| Language: | English |
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VINCA Institute of Nuclear Sciences
2004-01-01
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| Series: | Nuclear Technology and Radiation Protection |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/1451-3994/2004/1451-39940401031T.pdf |
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| author | Teterin Yury A. Stefanovskij Serguei V. Yudintsev Serguei V. Bek-Uzarov George N. Teterin Anton Yu Maslakov Konstantin I. Utkin Igor O. |
| author_facet | Teterin Yury A. Stefanovskij Serguei V. Yudintsev Serguei V. Bek-Uzarov George N. Teterin Anton Yu Maslakov Konstantin I. Utkin Igor O. |
| author_sort | Teterin Yury A. |
| collection | DOAJ |
| description | The synthesis of ceramic matrixes for the long-term storage of highly active radionuclide wastes and determination of physical and chemical forms of radionuclides in them is one of the important problems in radioecology. It enables to create purpose fully materials for the long-term storage of radionuclides. In the present work the samples of ceramics [CaCe0.9Ti2O6.8(I) and CaCeTi2O7(II}] formed under various conditions were investigated with the X-ray photo electron spectroscopy. It is necessary for synthesis of ceramic matrixes, for the disposal of the plutonium and others tetravalent actinides. A technique was developed for the determination of cerium oxidation state (Ce3+ and Ce4+) on the basis of the X-ray photo electron spectroscopy spectral structure characteristics. It was established that the sample (I) formed at 300 MPa and T = 1400 °C in the air atmosphere contained on the surface two types of cerium ions in the ratio – 63 atomic % of Ce3+ and 37 atomic % of Ce4+, and the sample (II) formed at 300 MPa and T= 1300 °C in the oxygen atmosphere contained on its surface two types of cerium ions also, but in the ratio – 36 atomic % of Ce3+ and 64 atomic % of Ce4+. It was established that on the surface of the studied ceramics carbonates of calcium and/or cerium could be formed under influence of the environment that leads to the destruction of ceramics. |
| first_indexed | 2024-04-13T02:14:25Z |
| format | Article |
| id | doaj.art-038adba3cb23417b93d9ff40bab5686b |
| institution | Directory Open Access Journal |
| issn | 1451-3994 |
| language | English |
| last_indexed | 2024-04-13T02:14:25Z |
| publishDate | 2004-01-01 |
| publisher | VINCA Institute of Nuclear Sciences |
| record_format | Article |
| series | Nuclear Technology and Radiation Protection |
| spelling | doaj.art-038adba3cb23417b93d9ff40bab5686b2022-12-22T03:07:12ZengVINCA Institute of Nuclear SciencesNuclear Technology and Radiation Protection1451-39942004-01-01191313810.2298/NTRP0401031TXPS Investigation of ceramic matrixes for disposal of long-living radioactive waste productsTeterin Yury A.Stefanovskij Serguei V.Yudintsev Serguei V.Bek-Uzarov George N.Teterin Anton YuMaslakov Konstantin I.Utkin Igor O.The synthesis of ceramic matrixes for the long-term storage of highly active radionuclide wastes and determination of physical and chemical forms of radionuclides in them is one of the important problems in radioecology. It enables to create purpose fully materials for the long-term storage of radionuclides. In the present work the samples of ceramics [CaCe0.9Ti2O6.8(I) and CaCeTi2O7(II}] formed under various conditions were investigated with the X-ray photo electron spectroscopy. It is necessary for synthesis of ceramic matrixes, for the disposal of the plutonium and others tetravalent actinides. A technique was developed for the determination of cerium oxidation state (Ce3+ and Ce4+) on the basis of the X-ray photo electron spectroscopy spectral structure characteristics. It was established that the sample (I) formed at 300 MPa and T = 1400 °C in the air atmosphere contained on the surface two types of cerium ions in the ratio – 63 atomic % of Ce3+ and 37 atomic % of Ce4+, and the sample (II) formed at 300 MPa and T= 1300 °C in the oxygen atmosphere contained on its surface two types of cerium ions also, but in the ratio – 36 atomic % of Ce3+ and 64 atomic % of Ce4+. It was established that on the surface of the studied ceramics carbonates of calcium and/or cerium could be formed under influence of the environment that leads to the destruction of ceramics.http://www.doiserbia.nb.rs/img/doi/1451-3994/2004/1451-39940401031T.pdfceramicsmatrixXPSceriumradioactive wastes |
| spellingShingle | Teterin Yury A. Stefanovskij Serguei V. Yudintsev Serguei V. Bek-Uzarov George N. Teterin Anton Yu Maslakov Konstantin I. Utkin Igor O. XPS Investigation of ceramic matrixes for disposal of long-living radioactive waste products Nuclear Technology and Radiation Protection ceramics matrix XPS cerium radioactive wastes |
| title | XPS Investigation of ceramic matrixes for disposal of long-living radioactive waste products |
| title_full | XPS Investigation of ceramic matrixes for disposal of long-living radioactive waste products |
| title_fullStr | XPS Investigation of ceramic matrixes for disposal of long-living radioactive waste products |
| title_full_unstemmed | XPS Investigation of ceramic matrixes for disposal of long-living radioactive waste products |
| title_short | XPS Investigation of ceramic matrixes for disposal of long-living radioactive waste products |
| title_sort | xps investigation of ceramic matrixes for disposal of long living radioactive waste products |
| topic | ceramics matrix XPS cerium radioactive wastes |
| url | http://www.doiserbia.nb.rs/img/doi/1451-3994/2004/1451-39940401031T.pdf |
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