Mechanical and structural properties of radiation-damaged
allanite-(Ce) and the effects of thermal annealing

J 2019

Mechanical and structural properties of radiation-damaged allanite-(Ce) and the effects of thermal annealing

REISSNER, C.E.; U. BISMAYER; D. KERN; M. REISSNER; S. PARK et al.

Základní údaje

Originální název

Mechanical and structural properties of radiation-damaged allanite-(Ce) and the effects of thermal annealing

Autoři

REISSNER, C.E.; U. BISMAYER; D. KERN; M. REISSNER; S. PARK; J.M. ZHANG; R.C. EWING; A. SHELYUG; A. NAVROTSKY; C. PAULMANN; Radek ŠKODA; L.A. GROAT; H. POELLMANN a T. BEIRAU

Vydání

Physics and Chemistry of Minerals, NEW YORK, SPRINGER, 2019, 0342-1791

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10504 Mineralogy

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 1.657

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/19:00113447

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

Allanite; Radiation damage; Mechanical properties; Nanoindentation; Thermal annealing; Oxidation

Štítky

rivok

Změněno: 1. 4. 2020 11:34, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

The onset of thermally induced, heterogeneous structural reorganization of highly radiation-damaged allanite-(Ce) begins at temperatures below 700 K. Three strongly disordered allanite samples (S74 20414: ~ 0.55 wt% ThO2, 22.1 wt% REE oxides, and maximum radiation dose 3.5 x 10(18) alpha-decay/g; LB-1: ~1.18 wt% ThO2, 19.4 wt% REE oxides, and maximum radiation dose 2.0 x 10(19) alpha-decay/g; R1: ~ 1.6 wt% ThO2, 19.7 wt% REE oxides, and maximum radiation dose 2.6 x 10(18) alpha-decay/g) were step-wise annealed to 1000 K in air. Using orientation-dependent nanoindentation, synchrotron single-crystal X-ray diffraction (synchrotron XRD), X-ray powder diffraction (powder XRD), differential scanning calorimetry and thermogravimetric analysis (DSC/TG), mass spectrometry (MS), Fe-57 Mossbauer spectroscopy and high-resolution transmission electron microscopy (HRTEM), a comprehensive understanding of the structural processes involved in the annealing was obtained. As a result of the overall increasing structural order, a general increase of hardness (pristine samples: 8.2-9.3 GPa, after annealing at 1000 K: 10.2-12 GPa) and elastic modulus (pristine samples: 115-127 GPa, after annealing at 1000 K: 126-137 GPa) occurred. The initially heterogeneous recrystallization process is accompanied by oxidation of iron, the related loss of hydrogen and induced stress fields in the bulk material, which cause internal and surface cracking after step-wise annealing from 800 to 1000 K. HRTEM imaging of the pristine material shows preserved nanometer-sized crystalline domains embedded in the amorphous matrix, despite the high degree of structural damage. The results show that hardness and elastic modulus are sensitive indicators for the structural reorganization process.

Citovat

REISSNER, C.E.; U. BISMAYER; D. KERN; M. REISSNER; S. PARK; J.M. ZHANG; R.C. EWING; A. SHELYUG; A. NAVROTSKY; C. PAULMANN; Radek ŠKODA; L.A. GROAT; H. POELLMANN a T. BEIRAU. Mechanical and structural properties of radiation-damaged allanite-(Ce) and the effects of thermal annealing. Physics and Chemistry of Minerals. NEW YORK: SPRINGER, 2019, roč. 46, č. 10, s. 921-933. ISSN 0342-1791. Dostupné z: https://doi.org/10.1007/s00269-019-01051-z.

@article{1641533,
   author = {Reissner, C.E. and Bismayer, U. and Kern, D. and Reissner, M. and Park, S. and Zhang, J.M. and Ewing, R.C. and Shelyug, A. and Navrotsky, A. and Paulmann, C. and Škoda, Radek and Groat, L.A. and Poellmann, H. and Beirau, T.},
   article_location = {NEW YORK},
   article_number = {10},
   doi = {https://doi.org/10.1007/s00269-019-01051-z},
   keywords = {Allanite; Radiation damage; Mechanical properties; Nanoindentation; Thermal annealing; Oxidation},
   language = {eng},
   issn = {0342-1791},
   journal = {Physics and Chemistry of Minerals},
   title = {Mechanical and structural properties of radiation-damaged allanite-(Ce) and the effects of thermal annealing},
   url = {https://link.springer.com/article/10.1007/s00269-019-01051-z},
   volume = {46},
   year = {2019}
}

TY  - JOUR
ID  - 1641533
AU  - Reissner, C.E. - Bismayer, U. - Kern, D. - Reissner, M. - Park, S. - Zhang, J.M. - Ewing, R.C. - Shelyug, A. - Navrotsky, A. - Paulmann, C. - Škoda, Radek - Groat, L.A. - Poellmann, H. - Beirau, T.
PY  - 2019
TI  - Mechanical and structural properties of radiation-damaged allanite-(Ce) and the effects of thermal annealing
JF  - Physics and Chemistry of Minerals
VL  - 46
IS  - 10
SP  - 921-933
EP  - 921-933
PB  - SPRINGER
SN  - 03421791
KW  - Allanite
KW  - Radiation damage
KW  - Mechanical properties
KW  - Nanoindentation
KW  - Thermal annealing
KW  - Oxidation
UR  - https://link.springer.com/article/10.1007/s00269-019-01051-z
L2  - https://link.springer.com/article/10.1007/s00269-019-01051-z
N2  - The onset of thermally induced, heterogeneous structural reorganization of highly radiation-damaged allanite-(Ce) begins at temperatures below 700 K. Three strongly disordered allanite samples (S74 20414: ~ 0.55 wt% ThO2, 22.1 wt% REE oxides, and maximum radiation dose 3.5 x 10(18) alpha-decay/g; LB-1: ~1.18 wt% ThO2, 19.4 wt% REE oxides, and maximum radiation dose 2.0 x 10(19) alpha-decay/g; R1: ~ 1.6 wt% ThO2, 19.7 wt% REE oxides, and maximum radiation dose 2.6 x 10(18) alpha-decay/g) were step-wise annealed to 1000 K in air. Using orientation-dependent nanoindentation, synchrotron single-crystal X-ray diffraction (synchrotron XRD), X-ray powder diffraction (powder XRD), differential scanning calorimetry and thermogravimetric analysis (DSC/TG), mass spectrometry (MS), Fe-57 Mossbauer spectroscopy and high-resolution transmission electron microscopy (HRTEM), a comprehensive understanding of the structural processes involved in the annealing was obtained. As a result of the overall increasing structural order, a general increase of hardness (pristine samples: 8.2-9.3 GPa, after annealing at 1000 K: 10.2-12 GPa) and elastic modulus (pristine samples: 115-127 GPa, after annealing at 1000 K: 126-137 GPa) occurred. The initially heterogeneous recrystallization process is accompanied by oxidation of iron, the related loss of hydrogen and induced stress fields in the bulk material, which cause internal and surface cracking after step-wise annealing from 800 to 1000 K. HRTEM imaging of the pristine material shows preserved nanometer-sized crystalline domains embedded in the amorphous matrix, despite the high degree of structural damage. The results show that hardness and elastic modulus are sensitive indicators for the structural reorganization process.
ER  -

REISSNER, C.E.; U. BISMAYER; D. KERN; M. REISSNER; S. PARK; J.M. ZHANG; R.C. EWING; A. SHELYUG; A. NAVROTSKY; C. PAULMANN; Radek ŠKODA; L.A. GROAT; H. POELLMANN a T. BEIRAU. Mechanical and structural properties of radiation-damaged allanite-(Ce) and the effects of thermal annealing. \textit{Physics and Chemistry of Minerals}. NEW YORK: SPRINGER, 2019, roč.~46, č.~10, s.~921-933. ISSN~0342-1791. Dostupné z: https://doi.org/10.1007/s00269-019-01051-z.

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