共 38 条
Tb3+ ion substituted Sr-hexaferrites as high quality microwave absorbers
被引:18
作者:
Almessiere, M. A.
[1
,2
]
Sozeri, H.
[3
]
Trukhanov, A., V
[4
,5
]
Slimani, Y.
[2
]
Ali, S.
[6
]
Acar, E.
[7
]
Baykal, A.
[8
]
机构:
[1] Imam Abdulrahman Bin Faisal Univ, Coll Sci, Dept Phys, POB 1982, Dammam 31441, Saudi Arabia
[2] Imam Abdulrahman Bin Faisal Univ, Inst Res & Med Consultat, Dept Biophys, POB 1982, Dammam 31441, Saudi Arabia
[3] TUBITAK UME, Natl Metrol Inst, POB 54, TR-41470 Gebze, Turkey
[4] Natl Univ Sci & Technol MISiS, Moscow 119049, Russia
[5] NAS Belarus, SSPA Sci & Pract Mat Res Ctr, Minsk 220072, BELARUS
[6] Imam Abdulrahman Bin Faisal Univ, Dept Mech & Energy Engn, POB 1982, Dammam 31441, Saudi Arabia
[7] Gaziantep Univ, Phys Engn Dept, TR-27310 Sehitkamil, Gaziantep, Turkey
[8] Imam Abdulrahman Bin Faisal Univ, Dept Nanomed Res, POB 1982, Dammam 31441, Saudi Arabia
基金:
俄罗斯科学基金会;
关键词:
Hexaferrites;
Rare earth substitution;
Structure;
Morphology;
Microwave properties;
1.0;
NANO-PHOTOCATALYSTS;
MAGNETIC-PROPERTIES;
DIELECTRIC-PROPERTIES;
CATALYTIC-PROPERTIES;
HEXAGONAL FERRITES;
NI;
CO;
NANOPARTICLES;
MN;
MICROSTRUCTURE;
D O I:
10.1016/j.jmmm.2019.165595
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
The SrFe12-xTbxO19 (x <= 0.10) nanohexaferrites (HFs) have been synthesized via citrate solgel approach. The phase formation, chemical purity, morphology and composition of the products were analyzed by X-ray powder diffractometer (XRD), Scanning and Transmission electron microscopes (SEM and TEM). Electromagnetic properties as such as frequency dependences of the loss tangents and reflection losses were investigated in the range of frequency from 2 to 18 GHz. The set of experimental data allowed to establish the nature of the electromagnetic power losses in SrFe12-xTbxO19 nanohexaferrites (HFs). It was demonstrated two main mechanisms of the electromagnetic radiation absorption in high frequency range (2-18 GHz): 1. Absorption due to natural ferromagnetic resonance (NFMR) and 2. Absorption due to dipole polarization. The results show the promise of using these materials for microwave applications (ensuring electromagnetic compatibility).
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