Synthesis, structural, dielectric and magnetic properties of hexagonal ferrites

Munir, Shabana; Ahmad, Ishtiaq; Laref, A.; Farid, Hafiz Muhammad Tahir

doi:10.1007/s00339-020-03809-7

Cited by 32 publications

(4 citation statements)

References 16 publications

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“…The wider XRD peaks of nano-composites were due to nano regime grain size [14]. The crystallite size of pure ferrites, polymer and nanocomposites were found through Scherrer's relation [15].…”

Section: Structural Propertiesmentioning

confidence: 96%

Synthesis And Characterization Of Cofe2o4 And Polypyrrole Based Composites

Aman

Alharbi

Ahmad

et al. 2022

Preprint

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Spinel ferrites and polymer based nanocomposites are emerging as a new class of materials having potential for medical field and flexible electronic devices. Nano sized ferrites CoFe2O4 were synthesized via chemical technique called co-precipitation. The polypyrrole was produced via in-situ polymerization technique. The formation of nano-composites was completed by combining nano sized ferrites with polypyrrole. Electrical, magnetic and structural properties of samples were inspected through two probe method, vibrating sample magnetometer, and X-ray diffraction (XRD) technique respectively. The peak intensity of XRD was enhanced and its width reduced with rise of ferrite concentration in the nanocomposites. The dc resistivity was increased with the ferrite contents. The ferromagnetic behavior was picked through hysteresis loop. These parameters were optimized according to requirement by fixing the ferrites ratio. Samples PF-1 (25% ferrites) PF-2 (50% ferrite ratio) displays super paramagnetic phenomenon. These samples may be used in hyperthermia; a cancer treatment technique.

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Section: Structural Propertiesmentioning

confidence: 96%

Synthesis And Characterization Of Cofe2o4 And Polypyrrole Based Composites

Aman

Alharbi

Ahmad

et al. 2022

Preprint

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Section: Properties Of Hexagonal Ferritesmentioning

confidence: 99%

“…[ 215 ] Efforts have been made to enhance the magnetic characteristics of hexaferrite by cationic substitution to meet a variety of applications. [ 148,216 ] These includes efforts on altering the intrinsic properties of hexaferrites by replacing with either single or multiple trivalent metal ions such as La 3+ , [ 217–221 ] Tb 3+ , [ 222,223 ] Nd 3+ , [ 138–140,224–226 ] Eu 3+ , [ 227 ] Dy 3+ , [ 228,229 ] Sm 3+ , [ 230,231 ] Cr 3+ , [ 232,233 ] Al 3+ , [ 185,186,234,235 ] Gd 3+ , [ 236–238 ] Sc 3+ , [ 239 ] Er 3+ , [ 240–242 ] Pr 3+ , [ 243 ] Yb 3+ , [ 244 ] Ce 3+ , [ 245 ] La 3+ –Pr 3+ , [ 246 ] La 3+ –Nd 3+ , [ 247 ] Nd 3+ –Sm 3+ , [ 248 ] Nb 3+ –Y 3+ , [ 249 ] La 3+ –Ce 3+ , [ 250 ] Er 3+ –Cr 3+ , [ 251 ] Dy 3+ –Nd 3+ –Pr 3+[ 252 ] or a suitable mix of divalent and trivalent ions such as Tb 3+ –Mn 2+ , [ 253 ] Nd 3+ –Co 2+ , [ 254 ] Gd 3+ –Co 2+ , [ 255 ] Pr 3+ –Mn 2+ , [ 256 ] Sm 3+ –Co 2+ , [ 257 ] La 3+ –Co 2+ , [ 258 ] La 3+ –Mn 2+ , [ 259 ] Pr 3+ –Co 2+ , [ 260 ] Cu 2+ –Cr 3+ , [ 261 ] Al 3+ –Mg 2+ , [ 262 ] Ce 3+ –Zn 2+ , [ 263 ] Ce 3+ –Co 2+ , [ 264 ] Gd 3+ –Mn 2+ ‐Co 2+ , [ 265 ] Ca 2+ –La 3+ –Co 2+[ 266 ] or tetravalent Zr 4+[ 267 ] or a divalent and tetravalent ions such as Co 2+ –Si 4+ , [ 268 ] Cu 2+ –Zr 4+,[ 269 ] Zr 4+ –Co 2+ , [...…”

Section: Properties Of Hexagonal Ferritesmentioning

confidence: 99%

Recent Progress in Hexagonal Ferrites Based Composites for Microwave Absorption

Mohammed

Mohammed²,

Srivastava

2022

Cryst. Res. Technol.

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With the fast growth of wireless communication technology in high‐frequency ranges, electromagnetic (EM) interference has become a growing concern that has drawn international attention. The development of materials that can absorb EM radiation is a crucial solution. This review provides a detailed overview of ferrites, specifically hexagonal ferrites and their composites for microwave (MW) absorption. It examines hexagonal ferrite classifications based on the stacking order of their fundamental blocks and their synthesis methods and strategies for improving their magnetic properties. On the other hand, this review included a detailed examination of hexagonal ferrites–conducting polymer, hexagonal ferrites–2D materials, and hexagonal ferrite–other nanomaterials composites for MW absorption applications. Enhancing MW absorption in hexagonal ferrites‐based microwave absorption materials (MAMs) regulates their EM characteristics, improves impedance matching, and creates a diversity of loss mechanisms. In addition, the limitations, challenges, and opportunities of hexagonal ferrites‐based MAMs are discussed, which will be helpful to those working in related areas. As a general application potential, it is worth mentioning that, as a result of recent promising findings in the synthesis of hexagonal ferrites‐based composites, hexaferrite‐based composites are suitable devices in the area of microwave absorption.

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“…Most of methods when utilized yield some by-products along with the required phases. A number of the researchers have opted various synthesis route like solgel [25], co-precipitation method [26], solution combustion method [27], hydrothermal method [28].…”

Section: Synthesis Routes For Hexaferritesmentioning

confidence: 99%

Hexagonal Ferrites, Synthesis, Properties and Their Applications

Dhiman

2021

Materials Research Foundations

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We intend to report on possible fabrication routes for all types of hexagonal ferrites which are known for their wide area of use and applications. Hexagonal ferrites have now become an intense topic of research as they are the part of most of magnetic recording and data storage applications globally. Hexagonal or popularly known as ‘Heaxa-ferrites’ are known for their utilization in permanent magnets and their utilization in electrical devices being operated at high frequencies especially at GHz frequencies. We have presented in this chapter all main six types of hexagonal ferrites i.e. M Type, Z-Type, Y-type, W-type, X-Type and U-type hexa-ferrites. Hexaferrites belong to ferromagnetic class of magnetic materials and their properties are purely dependent on intrinsic structure of ferrites. In this chapter, we aim to discuss more on M-type of hexa-ferrites, their properties and their applications. Also, recent advances on M-type ferrites are also a part of this chapter.

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Synthesis, structural, dielectric and magnetic properties of hexagonal ferrites

Cited by 32 publications

References 16 publications

Synthesis And Characterization Of Cofe2o4 And Polypyrrole Based Composites

Synthesis And Characterization Of Cofe2o4 And Polypyrrole Based Composites

Recent Progress in Hexagonal Ferrites Based Composites for Microwave Absorption

Hexagonal Ferrites, Synthesis, Properties and Their Applications

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