Magnetic Properties and Crystal Structure of (Fe,Ni)2( P,Si) Quaternaries of Fe2P-Type

Tian Yi Ren; Rui Hong Wang; Tian Liang Wang

doi:10.4028/www.scientific.net/MSF.1001.53

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HomeMaterials Science ForumMaterials Science Forum Vol. 1001Magnetic Properties and Crystal Structure of...

Magnetic Properties and Crystal Structure of (Fe,Ni)₂( P,Si) Quaternaries of Fe₂P-Type

Abstract:

(Fe,Ni)₂(P,Si) compounds were synthesized and characterized. Ni substitution in Fe_1.95-xNi_xP_0.7Si_0.3 is found to favor the formation of Fe₂P-type hexagonal structure. The samples appear nearly single phase. Powder oriented in the magnetic field shows a pronounced uniaxial magnetic anisotropy with c axis as the easy axis. Magnetization measurements carried out along and perpendicular to the c crystal axis demonstrate a significant magnetic anisotropy, making these materials potential candidates for permanent magnet applications. We found that (Fe,Ni)₂(P,Si) compound has no remanent magnetic field and coercivity, but it has a large magnetocrystalline anisotropy at room temperature. Therefore, doping Fe₂P type compounds with a small amount of Ni and Si may be a promising way to create new materials with large magnetocrystalline anisotropy at room temperature, and thus rare-earth free permanent magnet.

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Materials Science Forum (Volume 1001)

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53-60

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https://doi.org/10.4028/www.scientific.net/MSF.1001.53

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Online since:

July 2020

Authors:

Tian Yi Ren*, Rui Hong Wang, Tian Liang Wang

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Curie Temperature, Magnetocrystalline Anisotropy, Permanent Magnet Materials

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