Open AccessMultiband Electromagnetic Wave Absorption Study on Nanocrystalline (1-x)NiFe2O4/(x)BaTiO3 Composites
Author(s) -
Engkir Sukirman,
Yosef Sarwanto,
Syahfandi Ahda,
Yana Taryana,
Setyo Purwanto
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1436/1/012105
Subject(s) - materials science , nanocrystalline material , tetragonal crystal system , diffractometer , reflection loss , composite number , absorption (acoustics) , solid state reaction route , magnetization , composite material , analytical chemistry (journal) , crystal structure , crystallography , magnetic field , ceramic , nanotechnology , chemistry , physics , scanning electron microscope , chromatography , quantum mechanics
Multiband electromagnetic wave absorption have been studied on nanocrystalline (1-x) NiFe 2 O 4 (NFO)/(x)BaTiO 3 (BTO) composites. The samples were synthesized by solid state reaction using high energy milling (HEM) instrument. The composite samples were characterized using X-ray Diffractometer (XRD) and vibrating sample magnetometer (VSM) instrument. The X-ray diffraction (XRD) patterns of all the samples show single phase and free from impurities. The NFO sample can be indexed to a single cubic crystal structure with a space group of Fd-3m, No. 227. While, the BTO sample can be indexed to a single tetragonal crystal structure with a space group of P4mm , No. 99. The composite samples consist of two phases, namely NFO and BTO showing soft magnetic performance. The mass magnetization is in the range of 20.0–49.0 emu/g. The electromagnetic parameters of the composites were measured by a vector network analyser in the frequency range of 2 GHz to 18 GHz. The results indicated that (1-x) NiFe 2 O 4 / (x) BaTiO 3 composites display three-band electromagnetic wave absorption. The 0.5NiFe 2 O 4 / 0.5BaTiO 3 composite displays three-band reflection loss which is larger than the other one and the three-band reflection loss are almost the same, i.e., below the -15 dB. From these experiments it can be concluded that the 0.5NiFe 2 O 4 / 0.5BaTiO 3 composite is good candidate for electro-magnetic wave absorption.