Microstructure and magnetostriction of PrFe1.93Zr0.02nanocrystalline synthesized under high pressure

C. C. Hu; Y. G. Shi; Z. Y. Chen; D. N. Shi; Long-qing Chen; C. X. Kan

doi:10.1016/j.jallcom.2014.09.027

Microstructure and magnetostriction of PrFe_1.93Zr_0.02nanocrystalline synthesized under high pressure

C. C. Hu, Y. G. Shi, Z. Y. Chen, D. N. Shi, Long-qing Chen, C. X. Kan

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Bulk nanocrystalline PrFe_1.93Zr_0.02alloys were synthesized by annealing its melt-spinning ribbons under different pressure. It was demonstrated that cubic Laves phase become the main phase only when the annealing pressure is up to 3 GPa. Both the average grain size and volume fraction of cubic Laves crystallin phase decrease with increasing pressure from 3 GPa to 8 GPa. Magnetic measurement results indicated that the saturation magnetization and the absolute value of the effective first anisotropy constant decrease with increasing pressure from 3 GPa to 8 Gpa. A large linear magnetostriction of 590 ppm at 3 kOe is observed in the PrFe_1.93Zr_0.02compound annealed under 6 GPa, which might make it potential material for magnetostrictive application. Based on our experimental results, a phenomenological approach was also proposed to theoretically demonstrate that the good magnetostrictive property of PrFe_1.93Zr_0.02bulk nanocrystalline synthesized under 6 GPa might be the consequence of the competition of anisotropy and the volume fraction of cubic Laves crystallin phase.

Original language	English (US)
Pages (from-to)	195-199
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	619
DOIs	https://doi.org/10.1016/j.jallcom.2014.09.027
State	Published - Jan 15 2015

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2014.09.027

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title = "Microstructure and magnetostriction of PrFe1.93Zr0.02nanocrystalline synthesized under high pressure",

abstract = "Bulk nanocrystalline PrFe1.93Zr0.02alloys were synthesized by annealing its melt-spinning ribbons under different pressure. It was demonstrated that cubic Laves phase become the main phase only when the annealing pressure is up to 3 GPa. Both the average grain size and volume fraction of cubic Laves crystallin phase decrease with increasing pressure from 3 GPa to 8 GPa. Magnetic measurement results indicated that the saturation magnetization and the absolute value of the effective first anisotropy constant decrease with increasing pressure from 3 GPa to 8 Gpa. A large linear magnetostriction of 590 ppm at 3 kOe is observed in the PrFe1.93Zr0.02compound annealed under 6 GPa, which might make it potential material for magnetostrictive application. Based on our experimental results, a phenomenological approach was also proposed to theoretically demonstrate that the good magnetostrictive property of PrFe1.93Zr0.02bulk nanocrystalline synthesized under 6 GPa might be the consequence of the competition of anisotropy and the volume fraction of cubic Laves crystallin phase.",

author = "Hu, {C. C.} and Shi, {Y. G.} and Chen, {Z. Y.} and Shi, {D. N.} and Long-qing Chen and Kan, {C. X.}",

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doi = "10.1016/j.jallcom.2014.09.027",

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T1 - Microstructure and magnetostriction of PrFe1.93Zr0.02nanocrystalline synthesized under high pressure

AU - Hu, C. C.

AU - Shi, Y. G.

AU - Chen, Z. Y.

AU - Shi, D. N.

AU - Chen, Long-qing

AU - Kan, C. X.

PY - 2015/1/15

Y1 - 2015/1/15

N2 - Bulk nanocrystalline PrFe1.93Zr0.02alloys were synthesized by annealing its melt-spinning ribbons under different pressure. It was demonstrated that cubic Laves phase become the main phase only when the annealing pressure is up to 3 GPa. Both the average grain size and volume fraction of cubic Laves crystallin phase decrease with increasing pressure from 3 GPa to 8 GPa. Magnetic measurement results indicated that the saturation magnetization and the absolute value of the effective first anisotropy constant decrease with increasing pressure from 3 GPa to 8 Gpa. A large linear magnetostriction of 590 ppm at 3 kOe is observed in the PrFe1.93Zr0.02compound annealed under 6 GPa, which might make it potential material for magnetostrictive application. Based on our experimental results, a phenomenological approach was also proposed to theoretically demonstrate that the good magnetostrictive property of PrFe1.93Zr0.02bulk nanocrystalline synthesized under 6 GPa might be the consequence of the competition of anisotropy and the volume fraction of cubic Laves crystallin phase.

AB - Bulk nanocrystalline PrFe1.93Zr0.02alloys were synthesized by annealing its melt-spinning ribbons under different pressure. It was demonstrated that cubic Laves phase become the main phase only when the annealing pressure is up to 3 GPa. Both the average grain size and volume fraction of cubic Laves crystallin phase decrease with increasing pressure from 3 GPa to 8 GPa. Magnetic measurement results indicated that the saturation magnetization and the absolute value of the effective first anisotropy constant decrease with increasing pressure from 3 GPa to 8 Gpa. A large linear magnetostriction of 590 ppm at 3 kOe is observed in the PrFe1.93Zr0.02compound annealed under 6 GPa, which might make it potential material for magnetostrictive application. Based on our experimental results, a phenomenological approach was also proposed to theoretically demonstrate that the good magnetostrictive property of PrFe1.93Zr0.02bulk nanocrystalline synthesized under 6 GPa might be the consequence of the competition of anisotropy and the volume fraction of cubic Laves crystallin phase.

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DO - 10.1016/j.jallcom.2014.09.027

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JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Microstructure and magnetostriction of PrFe_1.93Zr_0.02nanocrystalline synthesized under high pressure

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