Correlating changes of the unit cell parameters and microstructure with magnetic properties in the CeFe11Ti compound
Correlating changes of the unit cell parameters and microstructure with magnetic properties in the CeFe11Ti compound
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CeFe11Ti 化合物中晶胞参数和微观结构的变化与磁性能的关联
DOI:
10.1016/j.jallcom.2021.158805
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发表时间:
2021
影响因子:
6.2
通讯作者:
O. Gutfleisch
中科院分区:
文献类型:
--
作者:
F. Maccari;S. Ener;D. Koch;I. Dirba;K. P. Skokov;E. Bruder;L. Schäfer;O. Gutfleisch
The criticality of rare-earth elements and its impact on the permanent magnet market have initiated a search for alternative material systems, either to fill the magnetic performance gap between ferrites and Nd-Fe-B magnets or to even replace the existing benchmark systems. Ce-based systems are attractive due to the abundance of cerium, however the formation of secondary phases leads to challenges for Ce-based compounds. We investigated the formation and magnetic properties of ThMn12-type Ce1+xFe11Ti samples forx= 0.15 and 0.20 compositions. Microstructural investigations reveal the formation of twin boundaries in the ThMn12grains with a misorientation angle of 58∘± 2∘. By varying the chemical composition and lowering the annealing temperatures, a grain refinement and reduction in twin boundary density was achieved. In addition, the magnetostrictive characteristic of CeFe11Ti-phase was investigated. Around the Curie temperature, anM2behaviour is noted, in contrast to anM3behaviour at lower temperatures. To probe the effect of unit cell compression and expansion on the magnetic properties, magnetic characterizations were carried out under hydrostatic pressure and after hydrogenation. A slight reduction is observed for the measured anisotropy field under 0.45 GPa hydrostatic pressure in the temperature interval of 10–300 K, which is consistent with the small increase detected for the hydrogenated compound.
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影响因子:
2.7
作者:
AKAYAMA, M;FUJII, H;TATAMI, K
通讯作者:
TATAMI, K
DOI:
--
发表时间:
2017
期刊:
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作者:
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Skokov, K. P.;Gutfleisch, O.
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Gutfleisch, O.
DOI:
--
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1999
期刊:
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通讯作者:
S. Miraglia
DOI:
--
发表时间:
2016
期刊:
影响因子:
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作者:
A. Martín;A. Gabay;D. Salazar;J. Barandiaran;G. Hadjipanayis
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