TY - JOUR
T1 - Magnetic properties of mechanically alloyed Co-Ti powder
AU - Martínez-Sánchez, R.
AU - Matutes-Aquino, J. A.
AU - Ayala-Valenzuela, O.
AU - De La Torre, S. D.
PY - 2002/7
Y1 - 2002/7
N2 - An amorphous phase containing traces of non-transformed Co and Ti powders was obtained by mechanical alloying nominal compositions of Co67Ti33 and Co50Ti50 in a high-energy ball-mill. These alloys were prepared from elemental powders of Co and Ti. The heat treatment of Co67Ti33 at 573, 873 and 1173 K crystallized nanoparticles of Co2Ti and Co3Ti compounds, while the same treatments conducted on Co50Ti50 resulted in the formation of Co2Ti and CoTi nanoparticles. The saturation magnetizations reached a maximum value in the amorphous state and they decreased when the temperatures of the heat treatment rose. Demagnetizing interparticle interaction effects were estimated through hysteresis loops and initial magnetization curves using the Fourier technique.
AB - An amorphous phase containing traces of non-transformed Co and Ti powders was obtained by mechanical alloying nominal compositions of Co67Ti33 and Co50Ti50 in a high-energy ball-mill. These alloys were prepared from elemental powders of Co and Ti. The heat treatment of Co67Ti33 at 573, 873 and 1173 K crystallized nanoparticles of Co2Ti and Co3Ti compounds, while the same treatments conducted on Co50Ti50 resulted in the formation of Co2Ti and CoTi nanoparticles. The saturation magnetizations reached a maximum value in the amorphous state and they decreased when the temperatures of the heat treatment rose. Demagnetizing interparticle interaction effects were estimated through hysteresis loops and initial magnetization curves using the Fourier technique.
KW - Magnetic alloys
KW - Magnetic properties
KW - Mechanical alloying
UR - http://www.scopus.com/inward/record.url?scp=0036645825&partnerID=8YFLogxK
U2 - 10.1016/S0921-4526(02)00716-0
DO - 10.1016/S0921-4526(02)00716-0
M3 - Artículo
SN - 0921-4526
VL - 320
SP - 285
EP - 287
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
IS - 1-4
ER -