LOW LOSS MAGNETIC MATERIAL HAVING NEGATIVE COERCIVITY CAUSED BY ANTI-FERROMAGNETIC COUPLING BETWEEN CRYSTALLINE AND AMORPHOUS PHASE

LOW LOSS MAGNETIC MATERIAL HAVING NEGATIVE COERCIVITY CAUSED BY ANTI-FERROMAGNETIC COUPLING BETWEEN CRYSTALLINE AND AMORPHOUS PHASE

PURPOSE: A low loss magnetic material having negative coercivity is provided to reduce energy loss by using negative coercivity caused by an anti-ferromagnetic coupling between crystalline and amorphous phases. CONSTITUTION: A small loss magnetic material having negative coercivity includes grid-sha...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: RHEEM, YOUNG WOO, KIM, CHONG OH, KIM, CHEOL GI
Format: Patent
Sprache:eng ; kor
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
MAGNETS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:PURPOSE: A low loss magnetic material having negative coercivity is provided to reduce energy loss by using negative coercivity caused by an anti-ferromagnetic coupling between crystalline and amorphous phases. CONSTITUTION: A small loss magnetic material having negative coercivity includes grid-shaped crystalline phases formed by applying heat in an amorphous magnetic material. An anti-ferromagnetic coupling is induced between the amorphous phase and the crystalline phase in the magnetic material such that an effective coercivity of the two phases is less than a sum of respective coercivity of each of the two phases. The following relation is satisfied, Hc=Hc1*Vcr+Hc2(1-Vcr). Hc1 and Vcr are the coercivity and a volume ratio of the crystalline phase, respectively. Hc2 is the coercivity of the amorphous phase.