Thermal expansion of Ti-substituted barium hexaferrite

P. Hernandez-Gomez, C. Francisco, de, V.A.M. Brabers, J.H.J. Dalderop

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Abstract

Thermal expansion measurements in the range of 20–500 °C were carried out on both poly- and single crystalline samples of the hexagonal magnetoplumbite ferrite with composition BaTiFe11O19. The continuous scanning of the thermal expansion reveals the existence of a -type anomaly near the Curie temperature. In contrast to the usual observed anisotropic behavior for magnetoplumbite hexaferrites, the averaged thermal expansion coefficient for the a direction is larger than for the c direction, i.e., 12.8×10–6 and 9.5×10–6 °C–1, respectively.
Original languageEnglish
Pages (from-to)3576-3578
JournalJournal of Applied Physics
Volume87
Issue number7
DOIs
Publication statusPublished - 2000

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