Changes in the phase composition and crystallite size of a rapid quenched Nd4.5Fe77B18.5 alloy, caused by thermomagnetic measurements (TM) have been studied using XRD methods of phase analysis, crystallite size and lattice microstrain determination. Structural changes in regard to optimal magnetic state were additionally analyzed by TEM. Magnetic properties in optimal magnetic state and after TM were observed using room temperature SQUID measurements. The obtained experimental results suggest the Fe3B/Nd2Fe14B and partly α-Fe nanocomposite structure of the alloy in the optimized magnetic state, with mean crystallite size (< 30 nm). After TM, an increased amount of α-Fe phase, presence of different oxide and Fe-B phases as well as growth of crystallites are found to be the main reasons for the observed quality loss of hard magnetic properties.
TY - JOUR
AU - Talijan, Nadežda M.
AU - Ćosović, Vladan
AU - Stajić-Trošić, Jasna
AU - Grujić, Aleksandar
AU - Žak, Tomas
AU - Lee, Z.
AU - Radmilović, V.
PY - 2009
UR - http://cer.ihtm.bg.ac.rs/handle/123456789/617
AB - Changes in the phase composition and crystallite size of a rapid quenched Nd4.5Fe77B18.5 alloy, caused by thermomagnetic measurements (TM) have been studied using XRD methods of phase analysis, crystallite size and lattice microstrain determination. Structural changes in regard to optimal magnetic state were additionally analyzed by TEM. Magnetic properties in optimal magnetic state and after TM were observed using room temperature SQUID measurements. The obtained experimental results suggest the Fe3B/Nd2Fe14B and partly α-Fe nanocomposite structure of the alloy in the optimized magnetic state, with mean crystallite size (< 30 nm). After TM, an increased amount of α-Fe phase, presence of different oxide and Fe-B phases as well as growth of crystallites are found to be the main reasons for the observed quality loss of hard magnetic properties.
T2 - Materials Transactions
T1 - Thermomagnetic analysis of nanocrystalline Nd4.5Fe 77B18.5 alloy
VL - 50
IS - 9
SP - 2302
EP - 2307
DO - 10.2320/matertrans.M2009138
ER -
@article{
author = "Talijan, Nadežda M. and Ćosović, Vladan and Stajić-Trošić, Jasna and Grujić, Aleksandar and Žak, Tomas and Lee, Z. and Radmilović, V.",
year = "2009",
url = "http://cer.ihtm.bg.ac.rs/handle/123456789/617",
abstract = "Changes in the phase composition and crystallite size of a rapid quenched Nd4.5Fe77B18.5 alloy, caused by thermomagnetic measurements (TM) have been studied using XRD methods of phase analysis, crystallite size and lattice microstrain determination. Structural changes in regard to optimal magnetic state were additionally analyzed by TEM. Magnetic properties in optimal magnetic state and after TM were observed using room temperature SQUID measurements. The obtained experimental results suggest the Fe3B/Nd2Fe14B and partly α-Fe nanocomposite structure of the alloy in the optimized magnetic state, with mean crystallite size (< 30 nm). After TM, an increased amount of α-Fe phase, presence of different oxide and Fe-B phases as well as growth of crystallites are found to be the main reasons for the observed quality loss of hard magnetic properties.",
journal = "Materials Transactions",
title = "Thermomagnetic analysis of nanocrystalline Nd4.5Fe 77B18.5 alloy",
volume = "50",
number = "9",
pages = "2302-2307",
doi = "10.2320/matertrans.M2009138"
}
Talijan, N. M., Ćosović, V., Stajić-Trošić, J., Grujić, A., Žak, T., Lee, Z.,& Radmilović, V. (2009). Thermomagnetic analysis of nanocrystalline Nd4.5Fe 77B18.5 alloy.
Materials Transactions, 50(9), 2302-2307.
https://doi.org/10.2320/matertrans.M2009138
Talijan NM, Ćosović V, Stajić-Trošić J, Grujić A, Žak T, Lee Z, Radmilović V. Thermomagnetic analysis of nanocrystalline Nd4.5Fe 77B18.5 alloy. Materials Transactions. 2009;50(9):2302-2307
Talijan Nadežda M., Ćosović Vladan, Stajić-Trošić Jasna, Grujić Aleksandar, Žak Tomas, Lee Z., Radmilović V., "Thermomagnetic analysis of nanocrystalline Nd4.5Fe 77B18.5 alloy" Materials Transactions, 50, no. 9 (2009):2302-2307,
https://doi.org/10.2320/matertrans.M2009138 .
