Crystallization of colloidal amorphous precursor particles into BaFe12O19 with hexagonal structure by aerosol annealing process

被引：8

作者：

Lee, Hye Moon ^{[1
]}

Kim, Yong-Jin ^{[1
]}

Ahn, Jung-Ho ^{[2
]}

机构：

[1] Korea Inst Mat Sci, Funct Mat Div, Changwon Gyeongnam 641831, South Korea

[2] Andong Natl Univ, Fac Engn, Andong 760749, Gyungbuk, South Korea

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 504卷

关键词：

Barium ferrite; Fine particles; Aerosol annealing process; Phase transformation; Magnetic properties; NANOPARTICLES; DEPOSITION; ROUTE;

D O I：

10.1016/j.jallcom.2010.03.100

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Aerosol annealing process was firstly applied to the phase transformation of barium ferrite (BaFe12O19) precursor particles from amorphous phase to hexagonal structure. The aerosol annealing process was experimentally optimized by the control of annealing temperature and particle residence time in the hot zone. By a proper control of aerosol annealing process, the crystallized BaFe12O19 particles with a geometric mean diameter (D-p) of 174 nm, a geometric standard deviation (sigma(g)) of 1.21, and an intrinsic coercivity (H-ci) of 3336 Oe were successfully prepared. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：S332 / S335

页数：4

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