Estimation of the superhigh-frequency magnetic permeability of alsifer from the measured permeability of composites

Journal Article · Wed Nov 15 04:00:00 EST 2017 · Physics of the Solid State

DOI:https://doi.org/10.1134/S1063783417110282· OSTI ID:22771535

Rozanov, K. N.; Shiryaev, A. O.; Lagar’kov, A. N. ^[1]; Shalygin, A. N. ^[2]

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1. Russian Academy of Sciences, Institute of Theoretical and Applied Electrodynamics (Russian Federation)
2. Moscow State University (Russian Federation)

The magnetic permeability of alsifer was restored from the frequency dependences of the dielectric and magnetic permeabilities of powder alsifer (AlSiFe alloy)–wax matrix composites. The permeabilities were measured using the coaxial line technique within a frequency range of 0.05–20 GHz. The effect of the concentration, shape, and size of powder particles on the microwave magnetic properties of composites was considered. A good agreement between the measurement results and the Maxwell–Garnett formula generalized with consideration for the particle shape, the percolation threshold, and the skin-effect was obtained. The found sizes of particles agreed with electron microscopy and granulometry data. Both the frequency and the ferromagnetic resonance line figure of merit (FOM) for lamellar particles proved to be higher than for spherical ones. Alsifer powders were shown to be promising fillers for radioabsorbing materials.

• OSTI ID: 22771535
• Journal Information: Physics of the Solid State, Journal Name: Physics of the Solid State Journal Issue: 11 Vol. 59; ISSN 1063-7834
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
ALUMINIUM COMPOUNDS
CONCENTRATION RATIO
DIELECTRIC MATERIALS
ELECTRON MICROSCOPY
FERROMAGNETIC RESONANCE
FREQUENCY DEPENDENCE
GHZ RANGE
IRON COMPOUNDS
MAGNETIC SUSCEPTIBILITY
MATRIX MATERIALS
MICROWAVE RADIATION
PERFORMANCE
PERMEABILITY
POWDERS
SILICON COMPOUNDS
SPHERICAL CONFIGURATION
TERNARY ALLOY SYSTEMS