Recombination gamma-luminescence at the nanometal Li – dielectric LiF interfaces

Ибрагимова, Э. М.; Mussaeva, M. A.; Buzrikov, Sh. N.

doi:10.1016/j.radphyschem.2015.02.009

Cited by 3 publications

(4 citation statements)

References 29 publications

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“…Alternatively, the asymmetric electronic structure of Li 8 may enable the suspension of these clusters in an ionic fluid. Colloids of lithium clusters are known to form in solid LiF and Li 2 O crystals when subjected to sufficient irradiation 39 40 41 . Furthermore, Li 8 clusters have been observed to be stable in LiF at temperatures up to 1143 K 42 .…”

Section: Discussionmentioning

confidence: 99%

Presence of Li Clusters in Molten LiCl-Li

Merwin

Phillips

Williamson

et al. 2016

Sci Rep

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Molten mixtures of lithium chloride and metallic lithium are of significant interest in various metal oxide reduction processes. These solutions have been reported to exhibit seemingly anomalous physical characteristics that lack a comprehensive explanation. In the current work, the physical chemistry of molten solutions of lithium chloride and metallic lithium, with and without lithium oxide, was investigated using in situ Raman spectroscopy. The Raman spectra obtained from these solutions were in agreement with the previously reported spectrum of the lithium cluster, Li8. This observation is indicative of a nanofluid type colloidal suspension of Li8 in a molten salt matrix. It is suggested that the formation and suspension of lithium clusters in lithium chloride is the cause of various phenomena exhibited by these solutions that were previously unexplainable.

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Section: Discussionmentioning

confidence: 99%

Presence of Li Clusters in Molten LiCl-Li

Merwin

Phillips

Williamson

et al. 2016

Sci Rep

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“…[42]. Нами было экспериментально доказано это расщепление на примере кристаллов LiF после облучения гаммаквантами и электронами [46][47][48]. Радченко рассчитал спектр экстинкции (поглощение+рассеяние света) при образовании коллоида щелочного металла -чем крупнее коллоид (в пределах 5−90 nm), тем слабее интенсивность полосы и больше длина волны ее максимума и полуширина [35].…”

Section: описание и анализ результатовunclassified

Радиолиз И Структурные Преобразования Поверхности Кристалла Хлорида Натрия При Гамма-Облучении

Ибрагимова¹,

Бузриков²,

Iskandarov³

et al. 2020

УФЖ

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Применением комплекса экспериментальных методов, включая дозированное воздействие 60Со-гамма-квантов, рентгеновскую дифракцию, локальный элементный анализ в микромасштабе, сканирующую зондовую микроскопию, оптическую и ФурьеИК спектроскопию, впервые количественно определен дефицит Cl и обнаружены обусловленные им примесные фазы NaClО3 и Na2О в приповерхностном нанослое оптически чистого полированного кристалла NaCl. При облучениях на воздухе при 320 K дозами 0.4−30 MR происходит радиолиз примесных фаз с потерей Cl и образованием NaН фазы в виде наноконусов и NaОН нанопленки. Дано альтернативное объяснение оптических и ИК-спектров с учетом вкладов поглощения и рассеяния неравновесных и наноразмерных дефектов структуры в приповерхностном слое.

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“…Lithium fluoride is a very convenient object to study radiation defects created in the crystal matrix by reactor irradiation. [8][9][10] The natural Li metal in LiF contains the Li 6 isotope, which has a large capture cross section for the transmutation reaction Li 6 þ n ! H 3 þ He 4 .…”

Section: Introductionmentioning

confidence: 99%

“…Lithium fluoride is a very convenient object to study radiation defects created in the crystal matrix by reactor irradiation. [ 8–10 ] The natural Li metal in LiF contains the Li 6 isotope, which has a large capture cross section for the transmutation reaction Li 6 + n → H 3 + He 4 . The kinetic energy that the reaction products possess creates many defects and they are responsible for most of the property changes.…”

Section: Introductionmentioning

confidence: 99%

Influence of Neutron Irradiation Conditions on Maximal Frequency of IR Absorption Spectra of LiF:OH Single Crystal

Akhvlediani

Dauletbekova

Baubekova

et al. 2023

Physica Status Solidi (a)

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For many solids operating under irradiation conditions, the study of their behavior at the neutron irradiation is of importance. Herein, the influence of neutron irradiation conditions on the infrared (IR) absorption spectra of LiF crystals containing different amounts of hydroxyl and metallic impurities is considered. The investigations are carried out for discovering new peculiarities under the extreme irradiation conditions of LiF—being a very important material for practical applications. In the crystals with OH− impurity after the action of neutron irradiation, quite clear bands are appeared in the region of 1900–2200 cm−1. The delivered doses vary from 1014 to 3 × 1017nnvt. LiF crystals are investigated by differing both in qualitative and quantitative contents of OH− ions. With the increase in irradiation dose, the maximum IR absorption of all investigated groups of crystals shifts to the region of low energies. The appearance of a new band in the IR spectrum and its shift as a function of dose is associated with the radiolysis of OH− molecule.

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Recombination gamma-luminescence at the nanometal Li – dielectric LiF interfaces

Cited by 3 publications

References 29 publications

Presence of Li Clusters in Molten LiCl-Li

Presence of Li Clusters in Molten LiCl-Li

Радиолиз И Структурные Преобразования Поверхности Кристалла Хлорида Натрия При Гамма-Облучении

Influence of Neutron Irradiation Conditions on Maximal Frequency of IR Absorption Spectra of LiF:OH Single Crystal

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