Calculation of High Frequency Complex Permeability of Carbonyl Iron Flakes in a Nomagnetic Matrix

Autor:	Li Fa-Shen, Wen Fu-Sheng, Zhou Dong, YI Hai-Bo, Qiao Liang
Rok vydání:	2008
Předmět:	Computer Science::Emerging Technologies Carbonyl iron Materials science Machining Condensed matter physics Transition metal Permeability (electromagnetism) Composite number Physics::Optics General Physics and Astronomy Anisotropy Relative permeability Ball mill
Zdroj:	Chinese Physics Letters. 25:751-754
ISSN:	1741-3540 0256-307X
DOI:	10.1088/0256-307x/25/2/108
Popis:	The carbonyl iron flakes are fabricated by high-energy ball milling. The effective permeability is measured and calculated for the composite consisting of flakes embedded in a nonmagnetic matrix. The magnetic flakes with a shape anisotropy and random spatial distribution of normal direction are considered to calculate the complex permeability of magnetic flake materials. Its analytical model is derived from the Landau–Lifshitz–Gilbert equation and Bruggeman's effective medium theory. The calculated results agree well with the experiment.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8e445473bbfc9785ea15d75d353385cf https://doi.org/10.1088/0256-307x/25/2/108 Zobrazit plný text záznamu