- Tytuł:
- Liquation of Vycor Glasses - Study by Positron Annihilation Lifetime Method
- Autorzy:
-
Jasińska, B.
Dawidowicz, A. L.
Radkiewicz, S. - Powiązania:
- https://bibliotekanauki.pl/articles/2024266.pdf
- Data publikacji:
- 2001
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
78.70.Bj
61.43.Gt - Opis:
- Two Vycor glasses of different percentages of the components were liquated between 725 K and 950 K and leached in order to produce pores. Little intermolecular voids characterized by ortho-positronium lifetime valueτ$\text{}_{2}$≈1.5 ns were observed simultaneously. At the first stage of pore formation the intensity I$\text{}_{2}$ decreased considerably for both glasses, while at liquation temperatures higher than 825 K it increased again. The increase in I$\text{}_{2}$ resulted from changes in the properties of the bulk material. The growth ofτ$\text{}_{2}$ in this range of temperatures was also observed.
- Źródło:
-
Acta Physica Polonica A; 2001, 99, 3-4; 379-384
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł