Effect of Temperature on the Magnetic Properties of Nano-sized M-type Barium Hexagonal Ferrites

被引：34
作者：
Carol, Tchouank Tekou T. [1 ]
Sharma, Jyoti [1 ]
Mohammed, J. [1 ]
Kumar, Sachin [2 ]
Srivastava, A. K. [1 ]
机构：
[1] Lovely Profess Univ, Sch Phys Sci, Dept Phys, GT Rd, Phagwara 144411, Punjab, India
[2] Guru Nanak Dev Univ, Dept Chem, Amritsar 143005, Punjab, India
来源：
RECENT ADVANCES IN FUNDAMENTAL AND APPLIED SCIENCES (RAFAS 2016) | 2017年 / 1860卷
关键词：
M-type barium hexaferrites; magnetic properties; structural properties; heat-treatment temperature; DIELECTRIC-PROPERTIES; HEXAFERRITE; MICROSTRUCTURE; BA;
D O I：
10.1063/1.4990307
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The application of M-type hexagonal ferrites in electronic devices is increasing with technological advancement. This is due to the possibility of improving the physical and magnetic properties to suit the desired application. Enhanced magnetic properties make hexagonal ferrites suitable for hyper frequency and radar absorbing application. In this paper, we investigated the effect of heat-treatment temperature on the structural and magnetic properties of M-type barium hexagonal ferrites with chemical composition Ba1-xAlxFe12-yMnyO19 (x=0.6 and y=0.3) synthesized by sol-gel auto-combustion method and sintered at 750 degrees C, 850 degrees C, 950 degrees C and 1050 degrees C. Characterisations of the prepared samples were done using Fourier transform-infrared (FT-IR), and vibrating sample magnetometer (VSM). The formation of M-type hexaferrite has been confirmed from XRD. The presence of two prominent peaks between 400 cm(-1) and 600 cm(-1) in the spectra of Fourier transform-infrared spectroscopy (FT-IR) also shows the formation of ferrite phase. Saturation magnetisation (MS), remnant magnetisation (Mr), coercivity (Hc) and squareness ratio (SR) were calculated from the M-H loop obtained from vibrating sample magnetometer (VSM).
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页数：8
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