- Tytuł:
- A Study of Point Defects in the B2-Phase Region of the Fe-Al System by Mössbauer Spectroscopy
- Autorzy:
-
Hanc, A.
Kansy, J.
Dercz, G.
Pająk, L.
Oleszak, D.
Mrzigod, J. - Powiązania:
- https://bibliotekanauki.pl/articles/1811589.pdf
- Data publikacji:
- 2008-12
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
75.50.Bb
61.72.J-
76.80.+y - Opis:
- In this work, we employed the Mössbauer spectroscopy and X-ray powder diffraction in a study of point defect formation in intermetallic phases of the B2 structure of the Fe-Al system as a function of Al concentration. The results are compared with the concentrations of point defect determined from positron annihilation data. In the Mössbauer effect, two types of samples are investigated: Fe-Al alloys with few additives obtained by induction melting and Al-rich metallic powders produced by the self-decomposition method and intensive grinding of high energy in the electro-magneto-mechanical mill. We present the values of the $\text{}^{57}Fe$ isomer shift and quadrupole splitting for the components describing the point defect in the local environment of a Mössbauer nuclide. The concentration of the Fe vacancies and Fe atoms substituting Al (Fe-AS) are determined. The results showed that an increase in Al content causes an increase in vacancy and Fe-AS concentration.
- Źródło:
-
Acta Physica Polonica A; 2008, 114, 6; 1555-1562
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł