- Tytuł:
- Specific Features of Strengthening Phenomena in NaCl:Eu$\text{}^{2+}$ Crystals
- Autorzy:
- Suszyńska, M.
- Powiązania:
- https://bibliotekanauki.pl/articles/1887341.pdf
- Data publikacji:
- 1991-04
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
- 77.40.+i
- Opis:
- Mechanical strength of europium doped NaCl crystals was studied as a function of both the dopant concentration (c$\text{}_{2+}$) and the kind of obstacles effective in hindering the motion of dislocations. It has been found that the yield strength (σ$\text{}_{0}$) of solution treated samples is determined by Snoek reorientation of both isolated dipoles and linear dimers within the stress fields of moving dislocations. The deviation of the σ$\text{}_{0}$ (c$\text{}_{2+}$) plot from linearity is probably due to the presence of quadripoles cutted through the moving dislocations. Also for as- received specimens two precipitation strengthening mechanisms are postulated; these are the Kelly-Nicholson cutting and the Orowan looping, respectively.
- Źródło:
-
Acta Physica Polonica A; 1991, 79, 4; 493-500
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki