Structure and magnetic properties of Nb-doped FeZrB soft magnetic alloys

Kong, Linghong; Gao, Yun; Song, Tingting; Zhai, Qijie

doi:10.1016/j.jmmm.2011.03.024

Cited by 17 publications

(2 citation statements)

References 28 publications

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“…Up to recent, most of the successfully developed Fe-based nano-crystalline alloys have their composition formula as FeXMCu, [7][8][9][10][11][12][13] in which M represents one or more metalloids such as Si and B, and X represents early transition metals (ETM) such as Mo, [7][8][9] Nb, [10][11][12][13] Zr, 14 and so on. The strategy is to promote the nucleation of a-Fe by the addition of Cu 12 and inhibit the grain growth during the annealing process by the addition of the ETMs.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the crystallization mechanism difference between FINEMET® and NANOMET® type Fe-based soft magnetic amorphous alloys

Wang

Zhang

Takeuchi

et al. 2016

Journal of Applied Physics

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In this article, the atomic behaviors of Nb and P in Fe-based amorphous alloys during nano-crystallization process were studied by the combination of ab initio molecular dynamics simulations and experimental measurements. The inclusion of Nb is found to be tightly bonded with B, resulting in the formation of diffusion barrier that could prevent the over-growth of α-(Fe, Si) grains and the promotion of larger amount of α-(Fe, Si) participation. The P inclusion could delay the diffusion of the metalloids that have to be expelled from the α-(Fe, Si) crystallization region so that the grain growth could be reduced with fast but practically achievable heating rates. The combined addition of P and Nb in high Fe content amorphous alloys failed in exhibiting the potential of good magnetic softness with slow heating (10 K/min) annealing at various temperatures. The sample with optimum crystallization process with confined grain size was annealed at 653 K, with the grain size of 31 nm and a coercivity of ∼120 A/m, much too large to meet the application requirements and to be compared with the currently well-studied alloy systems. This attempt suggests that the inclusion of early transition metal elements might not be effective enough to suppress grain growth in crystallizing high Fe content amorphous alloys.

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Section: Introductionmentioning

confidence: 99%

Investigation on the crystallization mechanism difference between FINEMET® and NANOMET® type Fe-based soft magnetic amorphous alloys

Wang

Zhang

Takeuchi

et al. 2016

Journal of Applied Physics

View full text Add to dashboard Cite

show abstract

“…The magnetic properties of FeZrB(Cu) amorphous alloys have been intensively studied in the past two decades since (1) these materials are promising candidates for magnetocaloric applications and (2) nanocrystalline alloys prepared by annealing from FeZrBCu amorphous precursors (Nanoperm type alloys) are good and cheap soft magnetic materials with a high application potential [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][20][21][22][23][24][25][26][27][28][29]. The Curie temperature (T C ) of the FeZrB(Cu) amorphous alloys can be easily tuned by varying the Zr and/or B content over a large temperature region around room temperature.…”

Section: Introductionmentioning

confidence: 99%