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...

Full description

Saved in:
Bibliographic Details
Published inApplied nanoscience Vol. 12; no. 4; pp. 1347 - 1354
Main Authors Klym, H., Hadzaman, I., Kostiv, Yu, Yatsyshyn, S., Stadnyk, B.
Format Journal Article
LanguageEnglish
Published Cham Springer International Publishing 01.04.2022
Springer Nature B.V
Subjects
Agglomeration
Ceramics
Chemistry and Materials Science
Conversion
Defects
Materials Science
Membrane Biology
Nanochemistry
Nanotechnology
Nanotechnology and Microengineering
Nickel oxides
Original Article
Positron annihilation
Positronium
Service life assessment
Spectrum analysis
Trapping
Positron-trapping
Ceramics
Positronium decay
Free-volume
Nanopores
Monolithization
Online AccessGet full text

Cover

More Information
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.
ISSN:2190-5509
2190-5517
DOI:10.1007/s13204-021-01963-9