Improvement of Magnetic Properties of La3+-Co2+ Substituted SrFe12O19

Xian Song Liu; Chun Hao Cheng; Zheng Ruan; Feng Hu; De Ru Zhu; Kun Liang Jiang; Chao Wang

doi:10.4028/www.scientific.net/AMR.284-286.2311

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 284-286Improvement of Magnetic Properties of La3+-Co2+...

Improvement of Magnetic Properties of La³⁺-Co²⁺ Substituted SrFe₁₂O₁₉

Abstract:

This paper describes the role of the substitution of La³⁺ and Co²⁺ with the formula Sr₁_-_xLa_xFe_12-yCo_yO₁₉on the magnetic properties of anisotropic strontium ferrite sintered magnets. The magnets prepared by the ceramic process have been investigated by XRD and B-H hysteresis curve measurements. Our results show that the magnetic induction coercivity (H_cb) and maximum magnetic energy product [(BH)_max] of the substitution magnets [Sr₁_-_xLa_xFe_12-yCo_yO₁₉ (x > y)] is notably increased without too much decreasing in the intrinsic coercivity (H_cj) and residual flux density (B_r), indicating that the magnetoplumbite crystal structure may be more stable than that of Sr₁_-_xLa_xFe_12-xCo_xO₁₉ magnets.

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Advanced Materials Research (Volumes 284-286)

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2311-2314

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.284-286.2311

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Online since:

July 2011

Authors:

Xian Song Liu, Chun Hao Cheng, Zheng Ruan, Feng Hu, De Ru Zhu, Kun Liang Jiang, Chao Wang

Keywords:

Magnetic Property, M-Type Strontium Ferrites, Substitution

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