Research output: Contribution to journal › Article › peer-review
Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - 57Fe hyperfine parameters and phase compositions in Fe-Ni-Co alloys from iron, stony-iron and stony meteorites
AU - Goryunov, Michael
AU - Oshtrakh, Michael
N1 - This work was supported by the Ministry of Science and Higher Education of the Russian Federation, project № FEUZ-2023-0013. The research funding for M.V.G. and M.I.O. from the Ministry of Science and Higher Education of the Russian Federation (Ural Federal University Program of Development within the Priority-2030 Program) is gratefully acknowledged.
PY - 2024
Y1 - 2024
N2 - Basing on Mössbauer studies of various iron, stony-iron and stony meteorites, we considered a possible relationship of the ranges of magnetic hyperfine field (Heff), Fe-Ni-Co phases and the ranges of Ni concentration in these phases. We suppose that possible relationship of the ranges of Heff with Fe-Ni-Co phases and with the ranges of Ni concentration can be taken as follows: ~345 kOe ≤ Heff ≤ ~365 kOe for the α2-phase (~ 8–25 at% of Ni), ~ 327 kOe < Heff ≤ ~345 kOe for the α-phase (up to 7 at% of Ni), ~ 283 kOe ≤ Heff ≤ ~327 kOe for the γ-phase (~ 26–48 at% of Ni) with the values of ~ 283 kOe ≤ Heff ≤ ~295 kOe which may also be associated with the ordered γ-FeNi(Co) phase (~ 48–52 at% of Ni). The paramagnetic γ-Fe(Ni, Co) phase with ~ 29–33 at% of Ni has the values of isomer shift (δ) in the range of ~ − 0.200 mm/s < δ < ~0.150 mm/s.
AB - Basing on Mössbauer studies of various iron, stony-iron and stony meteorites, we considered a possible relationship of the ranges of magnetic hyperfine field (Heff), Fe-Ni-Co phases and the ranges of Ni concentration in these phases. We suppose that possible relationship of the ranges of Heff with Fe-Ni-Co phases and with the ranges of Ni concentration can be taken as follows: ~345 kOe ≤ Heff ≤ ~365 kOe for the α2-phase (~ 8–25 at% of Ni), ~ 327 kOe < Heff ≤ ~345 kOe for the α-phase (up to 7 at% of Ni), ~ 283 kOe ≤ Heff ≤ ~327 kOe for the γ-phase (~ 26–48 at% of Ni) with the values of ~ 283 kOe ≤ Heff ≤ ~295 kOe which may also be associated with the ordered γ-FeNi(Co) phase (~ 48–52 at% of Ni). The paramagnetic γ-Fe(Ni, Co) phase with ~ 29–33 at% of Ni has the values of isomer shift (δ) in the range of ~ − 0.200 mm/s < δ < ~0.150 mm/s.
UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85184144950
U2 - 10.1007/s10751-024-01860-x
DO - 10.1007/s10751-024-01860-x
M3 - Article
VL - 245
SP - 19
JO - Hyperfine Interactions
JF - Hyperfine Interactions
SN - 0304-3843
IS - 1
ER -
ID: 52952313