Title

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

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.

Department(s)

Chemistry

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.


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