Influence of Ball Milling Time on the Microstructure and Properties of Prepared Fe-ZnO Core-shell Nanocomposite Particles

Abstract

Abstract: he Fe-ZnO core-shell nanocomposite particles with “currant-bun” morphology were prepared from the mixture of iron carboxyl and ZnO powders by the ball milling method and were characterized by
SEM, XRD, HRTEM and TG-DSC. The magnetic properties and the microwave electromagnetic parameters of the particles were measured. The results show Fe-ZnO particles have excellent antioxidation property.
Data of XRD, HRTEM and SEM suggest grain sizes of Fe nanocrystals diminish to about 10nm during ball milling and the anisotropy of their surfaces enhance contrarily. The permittivity of Fe-ZnO particles
is lower than that of micron iron carboxyl, but permeability is evidently higher, and specific saturation magnetization is approximate to that of micron iron carboxyl. The method provides a new route to
synthesize other metal-oxide core-shell nanocomposite particles.

Key words: high-energy ball milling, core-shell nanocomposite particles, iron carbonyl, zinc oxide, microwave electromagnetic parameter

CLC Number:

O641
TB383

WANG Wei,GUAN Jian-Guo,WANG Qi. Influence of Ball Milling Time on the Microstructure and Properties of Prepared Fe-ZnO Core-shell Nanocomposite Particles[J]. Journal of Inorganic Materials.

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Influence of Ball Milling Time on the Microstructure and Properties of Prepared Fe-ZnO Core-shell Nanocomposite Particles

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