Positron annihilation characterization of free volume in micro- and macro-modified Cu0.4Co0.4Ni0.4Mn1.8O4 ceramics
Artykuł w czasopiśmie
MNiSW
15
Lista A
| Status: | |
| Autorzy: | Klym Yurii, Ingram Adam, Shpotyuk Oleh, Hadzaman Ivan, Solntsev Viacheslav, Hotra Oleksandra, Popov Anatoli |
| Rok wydania: | 2016 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Numer czasopisma: | 7 |
| Wolumen/Tom: | 42 |
| Strony: | 601 - 605 |
| Web of Science® Times Cited: | 37 |
| Scopus® Cytowania: | 45 |
| Bazy: | Web of Science | Scopus | Web of Science Core Collection |
| Efekt badań statutowych | NIE |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | NIE |
| Abstrakty: | angielski |
| Free volume and pore size distribution size in functional micro and macro-micro-modified Cu0.4Co0.4 Ni 0.4Mn1.8O4 ceramics are characterized by positron annihilation lifetime spectroscopy in comparison with Hg-porosimetry and scanning electron microscopy technique. Positron annihilation results are interpreted in terms of model implication positron trapping and ortho-positronium decaying. It is shown that free volume of positron traps are the same type for macro and micro modified Cu0.4Co0.4 Ni 0.4Mn1.8O4 ceramics. Classic Tao-Eldrup model in spherical approximation is used to calculation of the size of nanopores smaller than 2 nm using the ortho-positronium lifetime. |
