Magnetic hardening of Zr2Co11:(Ti, Si) nanomaterials

W. Y. Zhang; S. Valloppilly; X. Z. Li; Y. Liu; S. Michalski; T. A. George; R. Skomski; D. J. Sellmyer

doi:10.1016/j.jallcom.2013.10.234

Magnetic hardening of Zr₂Co₁₁:(Ti, Si) nanomaterials

W. Y. Zhang, S. Valloppilly, X. Z. Li, Y. Liu, S. Michalski, T. A. George, R. Skomski, D. J. Sellmyer

Physics and Astronomy

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

23 Scopus citations

Abstract

The role of Ti and Si additions in the magnetic hardening of rapidly-quenched Zr₂Co₁₁-based nanomaterials has been investigated. Nanocrystalline Zr_17-xTi _xCo₈₃ and Zr₁₈Co_82- _ySi_y are mainly composed of rhombohedral Zr ₂Co₁₁ and a small amount of orthorhombic Zr ₂Co₁₁, hcp Co and cubic Zr₆Co₂₃. Ti addition decreases the mean grain size of the magnetic phases, and thus increases coercivity and energy product from 1.6 kOe and 1.9 MGOe for x = 0 to 2.6 kOe and 3.9 MGOe for x = 2, respectively. Si addition enhances the anisotropy field of the hard phase which increases the coercivity but slightly decreases the magnetization. This work shows that Ti has a positive effect on energy product through refinement of structure.

Original language	English (US)
Pages (from-to)	578-581
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	587
DOIs	https://doi.org/10.1016/j.jallcom.2013.10.234
State	Published - 2014

Keywords

Magnetic hardening
Magnetic property
Nanomaterial
Nanostructure

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.jallcom.2013.10.234

Cite this

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title = "Magnetic hardening of Zr2Co11:(Ti, Si) nanomaterials",

abstract = "The role of Ti and Si additions in the magnetic hardening of rapidly-quenched Zr2Co11-based nanomaterials has been investigated. Nanocrystalline Zr17-xTi xCo83 and Zr18Co82- ySiy are mainly composed of rhombohedral Zr 2Co11 and a small amount of orthorhombic Zr 2Co11, hcp Co and cubic Zr6Co23. Ti addition decreases the mean grain size of the magnetic phases, and thus increases coercivity and energy product from 1.6 kOe and 1.9 MGOe for x = 0 to 2.6 kOe and 3.9 MGOe for x = 2, respectively. Si addition enhances the anisotropy field of the hard phase which increases the coercivity but slightly decreases the magnetization. This work shows that Ti has a positive effect on energy product through refinement of structure.",

keywords = "Magnetic hardening, Magnetic property, Nanomaterial, Nanostructure",

author = "Zhang, {W. Y.} and S. Valloppilly and Li, {X. Z.} and Y. Liu and S. Michalski and George, {T. A.} and R. Skomski and Sellmyer, {D. J.}",

note = "Funding Information: This work is supported by Department of Energy/BREM (DE-AC02-07CH11358, Subaward No. SC-10-343). It was carried out in part in the Central Facilities of the Nebraska Center for Materials and Nanoscience, which is supported by the Nebraska Research Initiative.",

year = "2014",

doi = "10.1016/j.jallcom.2013.10.234",

language = "English (US)",

volume = "587",

pages = "578--581",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Magnetic hardening of Zr2Co11:(Ti, Si) nanomaterials

AU - Zhang, W. Y.

AU - Valloppilly, S.

AU - Li, X. Z.

AU - Liu, Y.

AU - Michalski, S.

AU - George, T. A.

AU - Skomski, R.

AU - Sellmyer, D. J.

N1 - Funding Information: This work is supported by Department of Energy/BREM (DE-AC02-07CH11358, Subaward No. SC-10-343). It was carried out in part in the Central Facilities of the Nebraska Center for Materials and Nanoscience, which is supported by the Nebraska Research Initiative.

PY - 2014

Y1 - 2014

N2 - The role of Ti and Si additions in the magnetic hardening of rapidly-quenched Zr2Co11-based nanomaterials has been investigated. Nanocrystalline Zr17-xTi xCo83 and Zr18Co82- ySiy are mainly composed of rhombohedral Zr 2Co11 and a small amount of orthorhombic Zr 2Co11, hcp Co and cubic Zr6Co23. Ti addition decreases the mean grain size of the magnetic phases, and thus increases coercivity and energy product from 1.6 kOe and 1.9 MGOe for x = 0 to 2.6 kOe and 3.9 MGOe for x = 2, respectively. Si addition enhances the anisotropy field of the hard phase which increases the coercivity but slightly decreases the magnetization. This work shows that Ti has a positive effect on energy product through refinement of structure.

AB - The role of Ti and Si additions in the magnetic hardening of rapidly-quenched Zr2Co11-based nanomaterials has been investigated. Nanocrystalline Zr17-xTi xCo83 and Zr18Co82- ySiy are mainly composed of rhombohedral Zr 2Co11 and a small amount of orthorhombic Zr 2Co11, hcp Co and cubic Zr6Co23. Ti addition decreases the mean grain size of the magnetic phases, and thus increases coercivity and energy product from 1.6 kOe and 1.9 MGOe for x = 0 to 2.6 kOe and 3.9 MGOe for x = 2, respectively. Si addition enhances the anisotropy field of the hard phase which increases the coercivity but slightly decreases the magnetization. This work shows that Ti has a positive effect on energy product through refinement of structure.

KW - Magnetic hardening

KW - Magnetic property

KW - Nanomaterial

KW - Nanostructure

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