http://hdl.handle.net/20.500.12128/8388
Tytuł: | Investigation of the temperature dependence of free volume in polymethylpentene by positron annihilation method |
Autor: | Danch, Adam Osoba, Wojciech |
Słowa kluczowe: | pozytrony; anihilacja pozytonów |
Data wydania: | 2005 |
Źródło: | Acta Physica Polonica A, Vol. 107, nr 5 (2005), s. 811-816 |
Abstrakt: | Positron lifetime measurements in polymethylpentene were performer in a wide temperature range. A conventional fast-slow coincidence lifetime spectrometer with plastic scintillators was used. All the measurements were made in vacuum. Additional measurements (X-ray diffraction, differential scanning calorimetry, and mechanical spectroscopy) were also performed to establish properties of samples. Mean free volume radii in the investigated samples were estimated from the positron lifetimes measurements results. An increase in I3 with the elapsed time of measurements was observed. |
URI: | http://hdl.handle.net/20.500.12128/8388 |
ISSN: | 0587-4246 |
Pojawia się w kolekcji: | Artykuły (WNŚiT) |
Plik | Opis | Rozmiar | Format | |
---|---|---|---|---|
Danch_Investigation_og_the_temperature_deoendence.pdf | 323,08 kB | Adobe PDF | Przejrzyj / Otwórz |
Uznanie autorstwa - użycie niekomercyjne, bez utworów zależnych 3.0 Polska Creative Commons