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Magnetic and Structural Behaviour of Mechanically Alloyed Fe x Mn 0.912—x Al 0.075 C 0.01 Cu 0.003 Alloys with 0.50 ≤ x ≤ 0.80
Author(s) -
Cruz B.,
Pérez G.A.,
Aguilar Y.
Publication year - 2000
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(200007)220:1<381::aid-pssb381>3.0.co;2-t
Subject(s) - antiferromagnetism , materials science , ferromagnetism , mössbauer spectroscopy , alloy , paramagnetism , grain size , phase (matter) , analytical chemistry (journal) , metallurgy , crystallography , condensed matter physics , chemistry , physics , organic chemistry , chromatography
An experimental analysis of structural and magnetic properties for the system of Fe x Mn 0.912— x Al 0.075 C 0.01 Cu 0.003 alloys with 0.50 ≤ x ≤ 0.80 is presented. These alloys were obtained by mechanical alloying in a planetary milling machine using 22 h of milling time. By X‐ray diffractions (XRD) it is shown that alloys with a percentage between 50 and 75 at% of Fe exhibit a f.c.c. phase, while for alloys with 80 at% Fe there is a coexistence of f.c.c. and b.c.c. phases. It is also shown that the grain size does not change noticeably with Fe content increase. Using Mssbauer spectroscopy an antiferromagnetic behaviour is found, which is typical of f.c.c. phase and it tends to a paramagnetic one with Fe content increase. For the 80 at% Fe alloy, the coexistence of ferromagnetic (typical of b.c.c. phase) and antiferromagnetic phases is obtained. An increase of the isomer shifts (IS) parameter with an increase of the Fe concentration was obtained.