Microwave characterization of Co-Ti substituted barium hexagonal ferrites in X- band

被引：53

作者：

Narang, Sukhleen Bindra ^{[1
]}

Kaur, Pawandeep ^{[1
]}

Bahel, Shalini ^{[1
]}

Singh, Charanjeet ^{[2
]}

机构：

[1] Guru Nanak Dev Univ, Dept Elect Technol, Amritsar, Punjab, India

[2] Rayat Bahra Inst Engn & Nanotechnol, Hoshiarpur, India

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2016年 / 405卷

关键词：

Hexagonal ferrite; Microwave absorber; Hysteresis; FREQUENCY DIELECTRIC BEHAVIOR; MAGNETIC-PROPERTIES; ABSORBING CHARACTERISTICS; PERMEABILITY; COMPOSITES; ABSORPTION; CONSTANT; ZR; IONS;

D O I：

10.1016/j.jmmm.2015.12.044

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The present study reports microwave characterization of Co-Ti substituted ferrites with general formula, BaFe(12-2x)CoxTixO19 where x=0.0, 0.3, 0.5, 0.7 and 0.9. The structure, morphology, magnetic properties and microwave absorption of the synthesized compositions were investigated with X-ray diffraction, scanning electron microscope, vibrating composition magnetometer and vector network analyzer respectively. The complex permittivity (epsilon'-j epsilon '') and complex permeability (mu'-j mu '') were measured using vector network analyzer from 8.2 to 12.4 GHz. It has been observed that the control of grain size, a decrease in coercivity and enhanced values of dielectric loss are effective means to improve the microwave absorption. The maximum absorption of 99% was obtained for the composition x=0.7 with a peak value of reflection loss of -25.15 dB at a thickness of 3.3 mm. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：17 / 21

页数：5

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