Structural and Magnetic Properties of La-Substituted M-Type Hexagonal Sr-Ni Ferrites Synthesized by Ball-Milling-Assisted Ceramic Process

被引：11

作者：

Xia, Jiuyang ^{[1
]}

Chen, Wen ^{[1
]}

Wu, Wenwei ^{[1
,2
]}

Wu, Xuehang ^{[3
]}

Zhou, Shifang ^{[1
]}

Xiao, Chengyue ^{[1
]}

机构：

[1] Guangxi Univ, Sch Chem & Chem Engn, Nanning 530004, Peoples R China

[2] Guangxi Coll & Univ Key Lab Appl Chem Technol & R, Nanning 530004, Peoples R China

[3] Guangxi Univ, Collaborat Innovat Ctr Renewable Energy Mat, Nanning 530004, Peoples R China

来源：

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2019年 / 32卷 / 02期

关键词：

M-type hexagonal La-substituted Sr-Ni ferrites; Chemical synthesis; X-ray diffraction; Magnetic properties; MICROWAVE-ABSORPTION PROPERTIES; LARGE-AREA ARRAYS; STRONTIUM HEXAFERRITE; CO-SUBSTITUTION; SATURATION MAGNETIZATION; DIELECTRIC-PROPERTIES; CRYSTAL-STRUCTURE; ND3+ IONS; SRFE12O19; IMPROVEMENT;

D O I：

10.1007/s10948-018-4739-z

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Sr0.5Ni0.5LaxFe12 - xO19 (x =0, 0.08, 0.16, and 0.24) hexaferrites have been synthesized by ball-milling-assisted ceramic process. The calcined samples are characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectra (FTIR), and vibrating sample magnetometry (VSM). XRD reveals that all samples consist of the main M-type hexagonal Sr ferrite phase and a low amount of rhombohedral Fe2O3 as secondary phase, and a continuous increase of the hexagonal lattice parameters with substitution content (x). Magnetic characterization indicates that all Sr0.5Ni0.5LaxFe12 - xO19 samples have a hard magnetic property. Substitution of Fe3+ ions by La3+ ions can obviously improve the specific saturation magnetization, remanence, magnetic moment, and effective anisotropy constant. Specific saturation magnetization, remanence, and the magnetic moment reach a maximum at x= 0.24 and calcination temperature of 1050 C-degrees.

引用

页码：441 / 449

页数：9

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