Crystal Structure and Phase Relations of the R2Fe14B–Y2Fe14B (R = Nd and Pr) Systems

Gu, Zhonghua; Ma, Dongdong; Xu, Caixia; Liu, Tao; Cheng, Linyi; Du, Yanxia; Zhang, Wenfeng

doi:10.1007/s10948-017-4214-2

Cited by 6 publications

(2 citation statements)

References 24 publications

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“…The addition of Y to the alloy matrix and heat treatment significantly improves mechanical properties such as thermal stability and corrosion resistance [ 15 ]. Y substitution can also enhance the exchange coupling effect, which not only improves the remanence and magnetic energy of the product, but also improves the thermal stability of the product [ 16 , 17 , 18 , 19 ]. When Y is added to soft magnetic materials, such as Fe-Y-B alloy, it is necessary to increase the soft magnetic performance through some methods such as low-temperature annealing, because Y has hard magnetic properties [ 20 , 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Annealing on the Structural, Magnetic and Surface Energy of CoFeBY Films on Si (100) Substrate

et al. 2021

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The structure, magnetic properties, optical properties and adhesion efficiency of CoFeBY films were studied. Co40Fe40B10Y10 alloy was sputtered onto Si (100) with a thickness of 10–50 nm, and then annealed at room temperature, 100 °C, 200 °C and 300 °C for 1 h. X‑ray diffraction (XRD) showed that the CoFeBY films deposited at room temperature are amorphous. Annealing at 100 °C gave the films enough thermal energy to change the structure from amorphous to crystalline. After annealing, the CoFeBY thin film showed a body-centered cubic (BCC) CoFeB (110) characteristic peak at 44°. However, the low‑frequency alternative‑current magnetic susceptibility (χac) and saturation magnetization (MS) increased with the increase of thickness. CoFeBY thin films had the highest χac and MS after annealing at 300 °C compared to that at other temperatures. After annealing at 300 °C, the surface energy of CoFeBY film is the maximum at 50 nm. Higher surface energy indicated stronger adhesion.

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Section: Introductionmentioning

confidence: 99%

Effect of Annealing on the Structural, Magnetic and Surface Energy of CoFeBY Films on Si (100) Substrate

et al. 2021

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“…In addition, the substitution of Y can not only enhance the exchange coupling but also improve the stability of the magnetic properties and temperature [10,11]. Regarding the application of Y in soft magnetic materials, since 2009, some scholars have successfully developed large-size ternary Fe-X-B (X = S C , Y, Dy, Ho, and Er) amorphous alloys with a small amount of rare earth elements [12,13]. Due to the advantage of having a low cost in industrial application, Fe-Y-B also has relatively high potential.…”

Section: Introductionmentioning

confidence: 99%

Effect of Yttrium Addition on Structure and Magnetic Properties of Co60Fe20Y20 Thin Films

et al. 2021

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In this paper, a Co60Fe20Y20 film was sputtered onto Si (100) substrates with thicknesses ranging from 10 to 50 nm under four conditions to investigate the structure, magnetic properties, and surface energy. Under four conditions, the crystal structure of the CoFeY films was found to be amorphous by an X-ray diffraction analyzer (XRD), suggesting that yttrium (Y) added into CoFe films and can be refined in grain size and insufficient annealing temperatures do not induce enough thermal driving force to support grain growth. The saturation magnetization (MS) and low-frequency alternate-current magnetic susceptibility (χac) increased with the increase of the thicknesses and annealing temperatures, indicating the thickness effect and Y can be refined grain size and improved ferromagnetic spin exchange coupling. The highest Ms and χac values of the Co60Fe20Y20 films were 883 emu/cm3 and 0.26 when the annealed temperature was 300 °C and the thickness was 50 nm. The optimal resonance frequency (fres) was 50 Hz with the maximum χac value, indicating it could be used at a low frequency range. Moreover, the surface energy increased with the increase of the thickness and annealing temperature. The maximum surface energy of the annealed 300 °C film was 30.02 mJ/mm2 at 50 nm. Based on the magnetic and surface energy results, the optimal thickness was 50 nm annealed at 300 °C, which has the highest Ms, χac, and a strong adhesion, which can be as a free or pinned layer that could be combined with the magnetic tunneling layer and applied in magnetic fields.

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Permanent magnetic properties of Nd–Fe–B melt-spun ribbons with Y substitution

Zhang

Luo

et al. 2019

Rare Met.

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Crystal Structure and Phase Relations of the R2Fe14B–Y2Fe14B (R = Nd and Pr) Systems

Cited by 6 publications

References 24 publications

Effect of Annealing on the Structural, Magnetic and Surface Energy of CoFeBY Films on Si (100) Substrate

Effect of Annealing on the Structural, Magnetic and Surface Energy of CoFeBY Films on Si (100) Substrate

Effect of Yttrium Addition on Structure and Magnetic Properties of Co60Fe20Y20 Thin Films

Permanent magnetic properties of Nd–Fe–B melt-spun ribbons with Y substitution

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