首页|Effects of solid isolation medium on the microstructure and magnetic properties of one-step sintered L10-FePtCu nanoparticles

Effects of solid isolation medium on the microstructure and magnetic properties of one-step sintered L10-FePtCu nanoparticles

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  • NSTL
  • Elsevier
? 2022 Elsevier B.V.To explore a more efficient process parameter for controlling the microstructure and magnetic properties of liquid-phase assisted one-step sintering method, the effects of isolation medium size and uniformity on L10-FePtCu NPs have been studied. The grain size (d) of L10-FePtCu NPs has been refined by decreasing the average size of solid isolation mediums (D), and the relationship can be approximated as d= 6.60 × D1/3 ? 9.14. The disorder-order transition of the L10 phase has been inhibited by decreasing the medium size, however, it has been facilitated by increasing the medium size uniformity. The ordering degree, coercive force, and magnetic energy product of L10-FePtCu NPs reach the highest when using the middle sized and best uniformity NaCl mediums (about 8 μm). This research indicates that controlling the interface between the solid isolation mediums and the precursors is an effective strategy to tune the microstructure and magnetic properties of one-step sintered highly ordered L10 phase NPs.

Disorder-order transitionGrain sizeL10-FePtMagnetic propertiesOne-step sinteringSolid isolation medium

Dong S.、Ju Y.、Jiang Y.、Meng C.、Wu C.、Liu R.、Pei W.

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School of Materials Science and Engineering Liaoning Technical University

School of Materials Science and Engineering Shenyang Ligong University

Key Laboratory of Anisotropy and Texture of Materials (Ministry of Education) Northeastern University

2022

10.1016/j.jallcom.2022.164748

Journal of Alloys and Compounds

Journal of Alloys and Compounds

EISCI
ISSN：0925-8388
年,卷(期)：2022.909
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