%0 Journal Article %1 WOS:000276054200071 %A Junior, G F M Pires %A Rodrigues, H O %A Almeida, J S %A Sancho, E O %A Goes, J C %A Costa, M M %A Denardin, J C %A Sombra, A S B %C PO BOX 564, 1001 LAUSANNE, SWITZERLAND %D 2010 %I ELSEVIER SCIENCE SA %J JOURNAL OF ALLOYS AND COMPOUNDS %K Dielectric Magnetic diffraction; properties; properties} {X-ray %N 1-2 %P 326-334 %R 10.1016/j.jallcom.2009.12.094 %T Study of the dielectric and magnetic properties of Co2Y, Y-type hexaferrite (Ba(2)Co(2)Fei(2)O(22)) added with PbO and Bi2O3 in the RF frequency range %V 493 %X In this paper the magnetic and dielectric properties of Y-type hexaferrite (Co2Y:Ba(2)Co(2)Fei(2)O(22)) added with 3,5 and 10 wt.% of MO and Bi2O3, obtained in a new procedure of the solid-state method, is presented. The analysis by X-ray diffraction (XRD) using the Rietveld refinement confirmed the formation of single-phase compound with a hexagonal crystal structure (a = b = 5.8560 angstrom and c = 43.4977 angstrom; alpha = beta = 90 degrees and gamma = 120 degrees). SEM micrograph of the material shows an uniform distribution of grains throughout the surface of the samples. Detailed studies of the dielectric properties of Co2Y, investigated in a wide frequency range (100 Hz to 100 MHz) at room temperature by complex impedance spectroscopy (CIS) technique, showed that these properties are strongly dependent on frequency and on the added level of the impurity. The effect of polyvinyl alcohol (PVA) and tetraethyl orthosilicate (TEOS) on the properties of Co2Y hexaferrite was also studied. (C) 2010 Elsevier B.V. All rights reserved.

@article{WOS:000276054200071, abstract = {In this paper the magnetic and dielectric properties of Y-type hexaferrite (Co2Y:Ba(2)Co(2)Fei(2)O(22)) added with 3,5 and 10 wt.% of MO and Bi2O3, obtained in a new procedure of the solid-state method, is presented. The analysis by X-ray diffraction (XRD) using the Rietveld refinement confirmed the formation of single-phase compound with a hexagonal crystal structure (a = b = 5.8560 angstrom and c = 43.4977 angstrom; alpha = beta = 90 degrees and gamma = 120 degrees). SEM micrograph of the material shows an uniform distribution of grains throughout the surface of the samples. Detailed studies of the dielectric properties of Co2Y, investigated in a wide frequency range (100 Hz to 100 MHz) at room temperature by complex impedance spectroscopy (CIS) technique, showed that these properties are strongly dependent on frequency and on the added level of the impurity. The effect of polyvinyl alcohol (PVA) and tetraethyl orthosilicate (TEOS) on the properties of Co2Y hexaferrite was also studied. (C) 2010 Elsevier B.V. All rights reserved.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {PO BOX 564, 1001 LAUSANNE, SWITZERLAND}, author = {Junior, G F M Pires and Rodrigues, H O and Almeida, J S and Sancho, E O and Goes, J C and Costa, M M and Denardin, J C and Sombra, A S B}, biburl = {https://www.bibsonomy.org/bibtex/2a7eec277093af6453d4c167a9777a558/ppgfis_ufc_br}, doi = {10.1016/j.jallcom.2009.12.094}, interhash = {557319846a7c8b2bd3a1ed2dbd0b96d1}, intrahash = {a7eec277093af6453d4c167a9777a558}, issn = {0925-8388}, journal = {JOURNAL OF ALLOYS AND COMPOUNDS}, keywords = {Dielectric Magnetic diffraction; properties; properties} {X-ray}, number = {1-2}, pages = {326-334}, publisher = {ELSEVIER SCIENCE SA}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {Study of the dielectric and magnetic properties of Co2Y, Y-type hexaferrite (Ba(2)Co(2)Fei(2)O(22)) added with PbO and Bi2O3 in the RF frequency range}, tppubtype = {article}, volume = 493, year = 2010 }