Autor: Frąckowiak, K. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Positron Annihilation Study of the Ageing Effects in the Cu-Zn-Sn Parent Phase
Autorzy:: Frąckowiak, J. E.
Płotkowski, K.
Salamon, A.
Powiązania:: https://bibliotekanauki.pl/articles/1933578.pdf
Data publikacji:: 1995-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 76.80.+y
61.72.-y
61.66.Dk
78.70.Bj
Opis:: A study of ageing effects on the structure of Cu-Zn-Sn shape memory alloys was performed using the $\text{}^{119}$Sn Mössbauer spectroscopy and positron annihilation techniques (the positron lifetime, and Doppler broadening line-shape S-parameter measurements). Two stages of ageing at 200°C connected with redistribution of Sn atoms were observed.
Źródło:: Acta Physica Polonica A; 1995, 88, 2; 327-332
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Positron Annihilation Lifetime in situ Study of Deformed Polyolefin Elastomers
Autorzy:: Krzemień, K.
Kansy, J.
Frąckowiak, J. E.
Powiązania:: https://bibliotekanauki.pl/articles/2043338.pdf
Data publikacji:: 2005-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.70.Bj
71.60.+z
61.41.+e
Opis:: The positron annihilation lifetime spectroscopy was used to investigate the free volume hole size of ethylene octane copolymers as a function of deformation in the range from 0 to 110% in steps of 10%. For each degree of deformation a series of 5-6 positron annihilation lifetime spectra was collected in situ. All spectra of a given series were analysed simultaneously. They were resolved into three exponential components, of lifetimes parameters τ$\text{}_{i}$ and intensities I$\text{}_{i}$. The variations of τ$\text{}_{3}$ reflect three deformation regions, the elastic range, strain softening range, and plastic region.
Źródło:: Acta Physica Polonica A; 2005, 107, 5; 837-841
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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