Synthesis and Magnetic Properties of BaFe12-XAlXO19 Nanopowders

被引：9

作者：

Moon, K. W. ^{[1
]}

Jeon, K. W. ^{[1
]}

Kim, J. ^{[1
]}

机构：

[1] Hanyang Univ, Dept Met & Mat Engn, Ansan 425791, Gyeonggi Do, South Korea

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2009年 / 45卷 / 10期

关键词：

Barium compounds; ferrimagnetic materials; high coercivity; nanocomposite magnet; BARIUM FERRITE; HIGH COERCIVITY; HEXAFERRITE; BA; PRECURSOR;

D O I：

10.1109/TMAG.2009.2024125

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The effect of Al contents on the magnetic properties of Ba hexaferrite powders has been investigated in order to increase the coercivity. In this study, a self-propagating combustion method has been developed to form Ba hexaferrite nanopowders. X-ray diffraction (XRD) and transmission electron microscopy (TEM) analysis showed that nanopowders with a size of 40-60 nm were successfully produced. With increasing Al contents, the coercivity of the nanopowders increased until the powders had a magnetoplumbite structure. We obtained a coercivity of 7559 Oe in BaFe10Al2O19 powders calcined at 850 for 1 h.

引用

页码：4405 / 4408

页数：4

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