Physico-chemical properties of Chernobyl lava and their destruction products.
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| Title: | Physico-chemical properties of Chernobyl lava and their destruction products. |
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| Authors: | Shiryaev, Andrey A.1,2,3 shiryaev@phyche.ac.ru, Vlasova, Irina E.2, Burakov, Boris E.4, Ogorodnikov, Boris I.5, Yapaskurt, Vasily O.6, Averin, Alexey A.1, Pakhnevich, Alexey V.7, Zubavichus, Yan V.8 |
| Source: | Progress in Nuclear Energy. Sep2016, Vol. 92, p104-118. 15p. |
| Subjects: | Chernobyl Nuclear Accident, Chornobyl, Ukraine, 1986, Lava, Nuclear accidents, Scanning electron microscopes, Monoclinic crystal system |
| Abstract: | The paper commemorates 30th anniversary of severe nuclear accident at the 4th Unit of Chernobyl NPP. Results of the investigation of radioactive glassy lava-like materials formed as a result of the accident at their current state are presented. Complementary analytical methods: vibrational spectroscopy, XAFS, SEM, EBSD, X-ray tomography, provide new information about structure of the Chernobyl lava matrix and inclusions. Most of these techniques are applied to the lava samples for the first time and allow to derive consistent model of the lava and to resolve some of existing controversies. The glassy matrix of the lava is an anhydrous depolimerised metaluminous glass with signs of devitrification. Principal inclusions are (U,Zr)O 2−x and (Zr,U)O 2−x solid solutions with tetragonal and monoclinic structures, UO 2 and U-rich zircon. Cracks around large inclusions are observed; some of them could be caused by volume expansion during tetragonal to monoclinic transition in zirconia. The lava accumulations are characterized by different stability against spontaneous destruction, with the pumice-like lava being the least stable, generating radioactive aerosols and particles with sizes up to 250 μm. [ABSTRACT FROM AUTHOR] |
| Copyright of Progress in Nuclear Energy is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 118029687 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Physico-chemical properties of Chernobyl lava and their destruction products. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Shiryaev%2C+Andrey+A%2E%22">Shiryaev, Andrey A.</searchLink><relatesTo>1,2,3</relatesTo><i> shiryaev@phyche.ac.ru</i><br /><searchLink fieldCode="AR" term="%22Vlasova%2C+Irina+E%2E%22">Vlasova, Irina E.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Burakov%2C+Boris+E%2E%22">Burakov, Boris E.</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22Ogorodnikov%2C+Boris+I%2E%22">Ogorodnikov, Boris I.</searchLink><relatesTo>5</relatesTo><br /><searchLink fieldCode="AR" term="%22Yapaskurt%2C+Vasily+O%2E%22">Yapaskurt, Vasily O.</searchLink><relatesTo>6</relatesTo><br /><searchLink fieldCode="AR" term="%22Averin%2C+Alexey+A%2E%22">Averin, Alexey A.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Pakhnevich%2C+Alexey+V%2E%22">Pakhnevich, Alexey V.</searchLink><relatesTo>7</relatesTo><br /><searchLink fieldCode="AR" term="%22Zubavichus%2C+Yan+V%2E%22">Zubavichus, Yan V.</searchLink><relatesTo>8</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Progress+in+Nuclear+Energy%22">Progress in Nuclear Energy</searchLink>. Sep2016, Vol. 92, p104-118. 15p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Chernobyl+Nuclear+Accident%2C+Chornobyl%2C+Ukraine%2C+1986%22">Chernobyl Nuclear Accident, Chornobyl, Ukraine, 1986</searchLink><br /><searchLink fieldCode="DE" term="%22Lava%22">Lava</searchLink><br /><searchLink fieldCode="DE" term="%22Nuclear+accidents%22">Nuclear accidents</searchLink><br /><searchLink fieldCode="DE" term="%22Scanning+electron+microscopes%22">Scanning electron microscopes</searchLink><br /><searchLink fieldCode="DE" term="%22Monoclinic+crystal+system%22">Monoclinic crystal system</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The paper commemorates 30th anniversary of severe nuclear accident at the 4th Unit of Chernobyl NPP. Results of the investigation of radioactive glassy lava-like materials formed as a result of the accident at their current state are presented. Complementary analytical methods: vibrational spectroscopy, XAFS, SEM, EBSD, X-ray tomography, provide new information about structure of the Chernobyl lava matrix and inclusions. Most of these techniques are applied to the lava samples for the first time and allow to derive consistent model of the lava and to resolve some of existing controversies. The glassy matrix of the lava is an anhydrous depolimerised metaluminous glass with signs of devitrification. Principal inclusions are (U,Zr)O 2−x and (Zr,U)O 2−x solid solutions with tetragonal and monoclinic structures, UO 2 and U-rich zircon. Cracks around large inclusions are observed; some of them could be caused by volume expansion during tetragonal to monoclinic transition in zirconia. The lava accumulations are characterized by different stability against spontaneous destruction, with the pumice-like lava being the least stable, generating radioactive aerosols and particles with sizes up to 250 μm. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Progress in Nuclear Energy is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.pnucene.2016.07.001 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 15 StartPage: 104 Subjects: – SubjectFull: Chernobyl Nuclear Accident, Chornobyl, Ukraine, 1986 Type: general – SubjectFull: Lava Type: general – SubjectFull: Nuclear accidents Type: general – SubjectFull: Scanning electron microscopes Type: general – SubjectFull: Monoclinic crystal system Type: general Titles: – TitleFull: Physico-chemical properties of Chernobyl lava and their destruction products. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Shiryaev, Andrey A. – PersonEntity: Name: NameFull: Vlasova, Irina E. – PersonEntity: Name: NameFull: Burakov, Boris E. – PersonEntity: Name: NameFull: Ogorodnikov, Boris I. – PersonEntity: Name: NameFull: Yapaskurt, Vasily O. – PersonEntity: Name: NameFull: Averin, Alexey A. – PersonEntity: Name: NameFull: Pakhnevich, Alexey V. – PersonEntity: Name: NameFull: Zubavichus, Yan V. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 09 Text: Sep2016 Type: published Y: 2016 Identifiers: – Type: issn-print Value: 01491970 Numbering: – Type: volume Value: 92 Titles: – TitleFull: Progress in Nuclear Energy Type: main |
| ResultId | 1 |
