Topographic characterization of barium-hexaferrite powders using AFM Article

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Overview

abstract

• We report results on topographic characterization of ferromagnetic compounds of BaFe12O19 prepared by chemical coprecipitation and conventional ceramic methods. Since it is desirable to use lower sintering temperatures without degrading the magnetic properties of the ferrites prepared by the ceramic method, they were doped with SiO2 to enhance the densification. The samples have been examinated by atomic force microscopy (AFM) and a difference in the grain size between both kind of specimens was observed. The samples prepared by the coprecipitation method were sintered at 1373°K and the oxide powders prepared by mechanical milling at 1453°K, during 1 hour.

authors

• Martínez Mendoza José Refugio
• Mirabal García Manuel
• Palomares Sánchez Salvador Antonio
• Ponce-Castañeda S.
• Ruiz Facundo

publication date

• 1996-01-01

funding provided via

• Consejo Nacional de Ciencia y Tecnología  Grant

published in

• Scripta Materialia  Journal

Research

keywords

• Atomic force microscopy; Barium compounds; Characterization; Crystal structure; Ferrites; Grain size and shape; Magnetic properties; Milling (machining); Oxides; Precipitation (chemical); Sintering; Synthesis (chemical); Barium hexaferrite powders; Conventional ceramic methods; Coprecipitation; Topographic characterization; Powder metals

Identity

Digital Object Identifier (DOI)

• 10.1016/1359-6462(95)00660-5

Additional Document Info

start page

• 1195

end page

• 1200

volume

• 34

issue

• 8