- Tytuł:
- A Search for Thermal Vacancies Forming Close Frenkel Pairs in Fe-Cr Alloys
- Autorzy:
- Chojcan, J.
- Powiązania:
- https://bibliotekanauki.pl/articles/2028967.pdf
- Data publikacji:
- 2001-11
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
61.72.Ji
76.80.+y - Opis:
- The room temperature Mössbauer spectra of $\text{}^{57}$Fe were measured for the bcc Fe$\text{}_{0.948}$Cr$\text{}_{0.052}$ solid solution quenched into water being at about 295 K from different temperatures not exceeding 1000 K, i.e. from the temperatures for which probabilities of formation of "clear" (Schottky) vacancies as well as vacancies forming the separate interstitial-vacancy (Frenkel) pairs are negligibly low. The obtained data were analysed in terms of concentration of unoccupied places in the 14-site surroundings of an $\text{}^{57}$Fe Mössbauer probe in the sample. It turned out that the concentration of vacancies detected by the probe increases with temperature very rapidly - at the rate of about 10$\text{}^{-4}$ K$\text{}^{-1}$. The result may suggest that the Mössbauer probe is sensitive to a possible thermal distortion of the lattice or creation of very close Frenkel pairs (the interstitial is the nearest neighbour of the vacant lattice site).
- Źródło:
-
Acta Physica Polonica A; 2001, 100, 5; 723-729
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł