Journal
NANOMATERIALS
Volume 9, Issue 2, Pages -Publisher
MDPI
DOI: 10.3390/nano9020202
Keywords
microwave absorption; nanosized composites; hard-soft ferrites; electromagnetic properties; reflection losses
Categories
Funding
- Institute for Research and Medical Consultations (IRMC) of Imam Abdulrahman Bin Faisal University (IAU-Saudi Arabia) [2018-IRMC-S-1, 2018-IRMC-S-2]
- Ministry of Education and Science of the Russian Federation [Pi02-2017-2-4, K4-2017-041, K3-2018-026, 4.1346.2017/4.6]
- SUSU [4.1346.2017/4.6]
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In this work, Sr0.3Ba0.4Pb0.3Fe12O19/(CuFe2O4 )(x) (x = 2, 3, 4, and 5) as strongly exchange-coupled nanosized ferrites were fabricated using a one-pot sol-gel combustion method (citrate sol-gel method). The X-ray diffraction (XRD) powder patterns of the products confirmed the occurrence of pure, exchange-coupled ferrites. Frequency dependencies of the microwave characteristics (MW) were investigated using a co-axial method. The non-linear behavior of the MW with the composition transformation may be due to different degrees of Fe ion oxidation on the spinel/hexaferrite grain boundaries and strong exchange coupling during the hard and soft phases.
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