Sustained electromagnetic parameters of barium ferrite and epoxy nanocomposites for patch antenna miniaturization over GHz frequency range

Article Chemistry, Multidisciplinary

Liquid-Metal-Assisted Programmed Galvanic Engineering of Core-shell Nanohybrids for Microwave Absorption

Biao Zhao et al.

Summary: This study presents a general approach for systematically fabricating core-shell nanohybrids using liquid-metal Ga alloys as templates. A local galvanic replacement reaction is initiated using an ultrasonic system. Controlled and quantitative regulation of non-homogeneous nanoparticle shell layer composition is achieved, and the resulting core-shell nanostructures are used as efficient microwave absorbers. This strategy enables the future fabrication of functional materials through spontaneous interfacial redox reactions.

ADVANCED FUNCTIONAL MATERIALS (2023)

添加到收藏夹

Article Materials Science, Multidisciplinary

Investigation of structural, elastic and magnetic properties of Cu2+ions substituted cobalt nano ferrites

Atul Thakur et al.

Summary: In this study, Cu-doped CoFe2O4 nanoparticles with different doping concentrations (x=0.0, 0.2, 0.4, and 0.6) were synthesized via the citrate precursor method. XRD analysis confirmed the formation of pure cubic structure with Fd-3m space group. Rietveld refinement was carried out to determine the structural purity and cation distribution. SEM revealed the reduction in grain size. FTIR showed a decrease in peak values as the dopant ion concentration increases. VSM analysis showed a decrease in saturation magnetization, net magnetic moment, and effective anisotropy constant values. The prepared nanoparticles have potential for industrial applications.

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS (2023)

添加到收藏夹

Article Physics, Condensed Matter

Investigation of structural, microstructural and electrical characteristics of hydrothermally synthesized Li0.5-0.5xCoxFe2.5-0.5xO4, (0.0 <= x <= 0.4) ferrite nanoparticles

Ritesh Verma et al.

Summary: In this study, cobalt-doped lithium ferrite nanoparticles were synthesized using the hydrothermal method. X-ray diffraction analysis confirmed the crystal structure and size changes, while scanning electron microscopy revealed the particle shape and boundaries. Complex impedance spectroscopy and electrical parameter analysis demonstrated the compositional dependence of conductivity and the impact of cobalt doping.

PHYSICA B-CONDENSED MATTER (2023)

添加到收藏夹

Article Chemistry, Inorganic & Nuclear

Electromagnetic and radar absorbing properties of γ Fe2O3/ Ba4Co2Fe36O60-epoxy polymeric composites for stealth applications

Vivek Pratap et al.

Summary: In this study, radar absorbing composites were designed using various ratios of U-type barium hexaferrite and Gamma iron oxide within an epoxy resin system. The composites exhibited excellent electromagnetic absorption properties, with potential applications in strategic and stealth technologies.

SOLID STATE SCIENCES (2021)

添加到收藏夹

Article Materials Science, Ceramics