Microstructure of Aged 238Pu-doped la-monazite ceramic and peculiarities of its X-ray emission spectra
Publication type: Journal Article
Publication date: 2020-01-27
scimago Q3
wos Q4
SJR: 0.253
CiteScore: 1.5
Impact factor: 0.9
ISSN: 20598521, 27315894
Condensed Matter Physics
General Materials Science
Mechanical Engineering
Mechanics of Materials
Abstract
New data on microstructure of 16 years old (La, Pu)PO4 monazite ceramics doped with 8.1 wt% of 238Pu are presented. It is shown that the sample consists from at least two phases differing in La/Pu ratio and small precipitates of Pu-phosphate. Possible mechanisms of the compositional heterogeneity are discussed. Formation of Pu-containing rhabdophane after sample storage in air is observed. This phenomenon together with gradual mechanical destruction of the ceramic pellet formation of submicron particles will likely increase rate of radionuclides loss from the monazite-based waste form. X-ray emission lines produced by recoil uranium ions from Pu decay are analysed. It is suggested that careful examination of their relative intensities may provide important information about behaviour of "hot" recoils in nuclear waste forms.
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Shiryaev A. A. et al. Microstructure of Aged 238Pu-doped la-monazite ceramic and peculiarities of its X-ray emission spectra // MRS Advances. 2020. Vol. 5. No. 1-2. pp. 1-7.
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Shiryaev A. A., Burakov B. E., Yapaskurt V. O., Egorov A. V., Vlasova I. E. Microstructure of Aged 238Pu-doped la-monazite ceramic and peculiarities of its X-ray emission spectra // MRS Advances. 2020. Vol. 5. No. 1-2. pp. 1-7.
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TY - JOUR
DO - 10.1557/adv.2020.53
UR - https://doi.org/10.1557/adv.2020.53
TI - Microstructure of Aged 238Pu-doped la-monazite ceramic and peculiarities of its X-ray emission spectra
T2 - MRS Advances
AU - Shiryaev, Andrey A.
AU - Burakov, Boris E
AU - Yapaskurt, Vasily O.
AU - Egorov, Alexander V
AU - Vlasova, Irina E
PY - 2020
DA - 2020/01/27
PB - Springer Nature
SP - 1-7
IS - 1-2
VL - 5
SN - 2059-8521
SN - 2731-5894
ER -
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@article{2020_Shiryaev,
author = {Andrey A. Shiryaev and Boris E Burakov and Vasily O. Yapaskurt and Alexander V Egorov and Irina E Vlasova},
title = {Microstructure of Aged 238Pu-doped la-monazite ceramic and peculiarities of its X-ray emission spectra},
journal = {MRS Advances},
year = {2020},
volume = {5},
publisher = {Springer Nature},
month = {jan},
url = {https://doi.org/10.1557/adv.2020.53},
number = {1-2},
pages = {1--7},
doi = {10.1557/adv.2020.53}
}
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MLA
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Shiryaev, Andrey A., et al. “Microstructure of Aged 238Pu-doped la-monazite ceramic and peculiarities of its X-ray emission spectra.” MRS Advances, vol. 5, no. 1-2, Jan. 2020, pp. 1-7. https://doi.org/10.1557/adv.2020.53.
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