Magnetic properties of substituted barium ferrite powders

Journal Article · Tue Mar 01 00:00:00 EST 1994 · IEEE Transactions on Magnetics

DOI:https://doi.org/10.1109/20.312361· OSTI ID:37266

Gruskova, A ^[1]

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1. Slovak Univ. of Technology, Bratislava (Slovakia). Dept. of Electrotechnology

Hexagonal barium ferrites were prepared using the citrate method. Cobalt and titanium were added in the amounts x from 0.2 to 1.1 ion/f.u. related to the formula BaCo{sub x}Ti{sub x}Fe{sub 12{minus}2x}O{sub 19}. The heat treatment has been applied in three steps of 550 C/5 hrs, 850 C/2 hrs and 1,100 C/2 hrs. The following magnetic properties have been achieved: H{sub c} {approximately} 80 kA/m, J{sub s} {approximately} 120 {times} 10{sup {minus}6} Tkg{sup {minus}1} m{sup 3}, and J{sub r} {approximately} 60 {times} 10{sup {minus}6} Tkg{sup {minus}1} m{sup 3} in the composition for which x is equal to 0.5 ion/f.u. The magnetic parameters have been measured by the vibration magnetometer.

• OSTI ID: 37266
• Report Number(s): CONF-930860-; ISSN 0018-9464; TRN: IM9519%%190
• Journal Information: IEEE Transactions on Magnetics, Vol. 30, Issue 2Pt2; Conference: EMMA `93: 5th European magnetic materials and applications conference, Kosice (Slovakia), 24-27 Aug 1993; Other Information: PBD: Mar 1994
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM COMPOUNDS
MAGNETIC PROPERTIES
FERRITES
COBALT
METALLURGICAL EFFECTS
TITANIUM
TITANIUM ADDITIONS
COBALT ADDITIONS
EXPERIMENTAL DATA
MICROSTRUCTURE