Structural and Magnetic Properties of BaFe₁₂₋₂ₓCoₓTiₓO₁₉ Powders Prepared by the Glass Crystallization Method

Author

Peter Görnert
Ekkehard Sinn, Missouri University of Science and TechnologyFollow
Walter Schüppel
Harald P. Pfeiffer
Michael A. Rösler
Thomas J. S. Schubert
Manfred Jurisch
Roland Sellger

Abstract

The glass crystallization method is shown to be suitable for preparing BaFe12-2xCox TixO19 powders with a nearly perfect crystallographic structure and a narrow particle size distribution. The dependences of the specific magnetization, the coercivity, and the particle size distribution on both the annealing temperature and the Co-Ti content correlate in a characteristic way. Furthermore, the lattice parameters, the specific surfaces and the thickness of the effective nonmagnetic surface layer were determined. The coercivity of the hexaferrite magnetic tapes is more than 8 × 103 A/m higher than for the corresponding powders.

Recommended Citation

P. Görnert et al., "Structural and Magnetic Properties of BaFe₁₂₋₂ₓCoₓTiₓO₁₉ Powders Prepared by the Glass Crystallization Method," IEEE Transactions on Magnetics, Institute of Electrical and Electronics Engineers (IEEE), Jan 1990.

The definitive version is available at https://doi.org/10.1109/20.50475

Department(s)

Chemistry

International Standard Serial Number (ISSN)

0018-9464

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1990 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Jan 1990