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

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This paper describes the role of the substitution of La3+ and Co2+ with the formula Sr1-xLaxFe12-yCoyO19 on 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 (Hcb) and maximum magnetic energy product [(BH)max] of the substitution magnets [Sr1-xLaxFe12-yCoyO19 (x > y)] is notably increased without too much decreasing in the intrinsic coercivity (Hcj) and residual flux density (Br), indicating that the magnetoplumbite crystal structure may be more stable than that of Sr1-xLaxFe12-xCoxO19 magnets.

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Periodical:

Advanced Materials Research (Volumes 284-286)

Main Theme:

Edited by:

Xiaoming Sang, Pengcheng Wang, Liqun Ai, Yungang Li and Jinglong Bu

Pages:

2311-2314

DOI:

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

Citation:

X. S. Liu et al., "Improvement of Magnetic Properties of La3+-Co2+ Substituted SrFe12O19", Advanced Materials Research, Vols. 284-286, pp. 2311-2314, 2011

Online since:

July 2011

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$35.00

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