Influence of CaSi Oxide on Microstructure and Magnetic Properties of Sr1-xLaxFe11.6-xCoxO19 Hexaferrite

doi:10.3724/SP.J.1077.2014.13140

Journal of Inorganic Materials ›› 2014, Vol. 29 ›› Issue (1): 81-84.DOI: 10.3724/SP.J.1077.2014.13140

• Research Paper • Previous Articles Next Articles

Influence of CaSi Oxide on Microstructure and Magnetic Properties of Sr_1-xLa_xFe_11.6-xCo_xO₁₉ Hexaferrite

CHEN Zhong-Yan¹, FENG Ze-Kun¹, ZHAN Zhen-Hua², WU Jie²

(1. School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China; 2. JPMF GuangDong Co., Ltd., Jiangmen 529000, China)

Received:2013-03-07 Revised:2013-05-15 Published:2014-01-20 Online:2013-12-09
About author:CHEN Zhong-Yan. E-mail:chenzhongyan88@163.com
Supported by:
Guangdong Province and Ministry of Education Cooperation Projects(20110905)

Abstract

Abstract: Based on the standard ceramic preparation process, the effects of CaSi oxide on the microstructure and magnetic properties of Sr_1-xLa_xFe_11.6-xCo_xO₁₉ were studied. The microstructural, morphology and magnetic properties of the samples were characterized by XRD, SEM and VSM. The SEM results show that the morphology of calcined samples are effective controled by CaSi oxide. So the ideal microstructure and enhanced M_r/M_s can be obtained by optimizing the amount of CaSi oxide. With x=0.2, 0.15wt% CaCO₃ and 0.2wt% SiO₂ were added to the Sr_1-xLa_xFe_11.6-x Co_xO₁₉ and the measured σ_s and H_cJwere enhanced by 4.76% and 6.2%, respectively, when compared with non-doped sample. Meanwhile, the Mr/Ms was improved as well in the above mentioned doping range.

Key words: CaSi oxide, hexaferrite, microstructure, magnetic properties

CLC Number:

TQ174

CHEN Zhong-Yan, FENG Ze-Kun, ZHAN Zhen-Hua, WU Jie. Influence of CaSi Oxide on Microstructure and Magnetic Properties of Sr_1-xLa_xFe_11.6-xCo_xO₁₉ Hexaferrite[J]. Journal of Inorganic Materials, 2014, 29(1): 81-84.

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Influence of CaSi Oxide on Microstructure and Magnetic Properties of Sr_1-xLa_xFe_11.6-xCo_xO₁₉ Hexaferrite

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