In-situ Induced Growth to Mono-dispersed Hollow M-type Barium Ferrite Sub-micro-spheres

Chem. J. Chinese Universities ›› 2005, Vol. 26 ›› Issue (11): 1986.

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In-situ Induced Growth to Mono-dispersed Hollow M-type Barium Ferrite Sub-micro-spheres

GAN Zhi-Ping, GUAN Jian-Guo

State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan 430070,China

Received:2005-06-30 Online:2005-11-10 Published:2005-11-10

Abstract

Abstract: In this paper a new method for fabricating mono-dispersed hollow M-type barium ferrite sub-micro-spheres was provided.That is to say,templated on the poly(styrene-co-acrylic acid) latexes which are surface-modified in a guanidine carbonate solvent,the barium ferrite precursors are in-situ induced to anchor on the surface and grow up,so was prepared the poly(styrene-co-acrylic acid)/barium ferrite precursor core-shell composite particles with uniform compact shell.Further heat-treating to the involved particles leads to mono-dispersed intact-frame hollow M-type barium ferrite sub-micro-spheres with pure BaFe₁₂O₁₉crystal phase.

Key words: Hollow spheres, Barium ferrite, Poly(styreneco-acrylic acid)

CLC Number:

O614.2

TrendMD:

GAN Zhi-Ping, GUAN Jian-Guo. In-situ Induced Growth to Mono-dispersed Hollow M-type Barium Ferrite Sub-micro-spheres[J]. Chem. J. Chinese Universities, 2005, 26(11): 1986.

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In-situ Induced Growth to Mono-dispersed Hollow M-type Barium Ferrite Sub-micro-spheres

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