MICROSTRUCTURAL AND ELECTROMAGNETIC PROPERTIES OF Mn-Zn FERRITES WITH LOW MELTING-POINT NONMAGNETIC Sb3+ IONS

被引：8

作者：

Fu, X. L. ^{[1
]}

Xing, Q. K. ^{[2
]}

Peng, Z. J. ^{[2
]}

Wang, C. B. ^{[2
]}

Fu, Z. Q. ^{[2
]}

Qi, L. H. ^{[3
]}

Miao, H. Z. ^{[3
]}

机构：

[1] Beijing Univ Posts & Telecommun, Sch Sci, Beijing 100876, Peoples R China

[2] China Univ Geosci, Sch Engn & Technol, Beijing 100083, Peoples R China

[3] Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2013年 / 27卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Mn-Zn ferrite; Sb3+ ions; doping; electromagnetic properties; MAGNETIC-PROPERTIES; DENSIFICATION; ADDITIVES;

D O I：

10.1142/S0217979213500033

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The doping effects of low melting-point nonmagnetic Sb3+ ions on the microstructure and electromagnetic properties of Mn-Zn ferrites were studied. All the samples were prepared by traditional ceramic technique. According to the investigation on the microstructure, it was found that all the samples consisted of ferrite phases with typical spinel cubic structure, and with increasing doping content of Sb3+ ions, the lattice constant of the ferrites decreased but the grain size increased; the elemental analysis taken on the ferrite grain and grain boundary indicated that a portion of Sb3+ ions entered into the ferrite lattice. Through the measurement of magnetic properties, it was revealed that, the saturation magnetization and initial permeability of the samples rose with small doping content of Sb3+ ions but decreased with additional Sb3+ doping; the Curie temperature decreased monotonously with Sb3+ doping; and the coercivity rose with increasing doping content of Sb3+ ions. The analysis of dielectric properties indicated that the dielectric constant of the doped Mn-Zn ferrites increased with increasing doping content of Sb3+ ions.

引用

页数：12

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