Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 682, Issue -, Pages 730-737Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2016.04.310
Keywords
Barium strontium hexaferrite; Screen printing technique; Thick film; Magnetic properties; Microwave absorption
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Funding
- UGC New Delhi
- DAE-BRNS [2012/34/36/BRNS/1034]
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The present paper reports the structural, magnetic and microwave properties of screen printed thick films of BaxSr1-XFe12O19 (BSF) (x = 0.0-1.0) synthesized via simple auto combustion technique followed by screen printing technique. The samples were characterized for various characterizations such as XRD, SEM, FT-IR, Micro-Raman, and VSM and microwave characterization. The X-ray diffraction patterns show that formations of hexagonal crystal structure with crystallite in the range 41.55 to 55.44 nm. The FT-IR and Micro-Raman spectroscopy also supports to the formation of hexagonal crystal structure with P6(3)mmc space group. The surface morphology clearly reveals the distribution of Ba+2 ions on the surface of strontium hexaferrite. The substitution of Ba+2 ions strongly affect the saturation magnetization and microwave properties of barium strontium hexaferrite. The 60% Ba+2 ion substituted film shows maximum crystallite size of 55.44 nm and it shows highest magnetic moment of 76.62 emu/gm. The BSF thick films show broad band microwave absorption in the 8-18 GHz frequency range for all the compositions with a maximum of around 68% for the 60% Ba+2 ion substituted film. (C) 2016 Elsevier B.V. All rights reserved.
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