- Tytuł:
- Nanopores in Silica Aerogels
- Autorzy:
-
Šauša, O.
Iskrová, M.
Majerník, V.
Krištiak, J.
Jesenák, K.
Vargová, M. - Powiązania:
- https://bibliotekanauki.pl/articles/1812550.pdf
- Data publikacji:
- 2008-05
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
- 78.70.Bj
- Opis:
- The size of nanopores in thermally treated samples of silica aerogels was determined by ortho-positronium lifetime measurements at room temperature. The annealing of samples in the temperature region of 300-800°C does not make substantial changes in pore size felt by positronium. The annealing at higher temperatures from an interval of 800-1050°C causes shrinkage of the samples reducing the pore size to 1-15 nm. The macropores vanish at temperature treatment at 1000°C and the positron annihilation is not affected by oxygen from air.
- Źródło:
-
Acta Physica Polonica A; 2008, 113, 5; 1517-1522
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł