Free-volume defects/nanopores conversion of temperature-sensitive Cu0.1Ni0.8Co0.2Mn1.9O4 ceramics caused by addition phase and monolithization process
The defects/nanopores conversion in the Cu 0.1 Ni 0.8 Co 0.2 Mn 1.9 O 4 ceramics caused by addition phase and monolithization process was studied by positron annihilation lifetime spectroscopy using three-component decomposition of spectra within mixed positron- and positronium-trapping modes. It is...
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Published in | Applied nanoscience Vol. 12; no. 4; pp. 1347 - 1354 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Cham
Springer International Publishing
01.04.2022
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | The defects/nanopores conversion in the Cu
0.1
Ni
0.8
Co
0.2
Mn
1.9
O
4
ceramics caused by addition phase and monolithization process was studied by positron annihilation lifetime spectroscopy using three-component decomposition of spectra within mixed positron- and positronium-trapping modes. It is established that a larger amount of addition NiO phase in ceramics resulted in void fragmentation with future agglomeration due to monolitization processes. The NiO extracted near intergranular boundaries formed new positron-trapping sites in the Cu
0.1
Ni
0.8
Co
0.2
Mn
1.9
O
4
ceramics. Monolithization of ceramics is accompanied by agglomeration of nanopores with radius centered near 0.3 nm. |
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ISSN: | 2190-5509 2190-5517 |
DOI: | 10.1007/s13204-021-01963-9 |