Fe/Sr ratio and calcination temperature effects on processing of nanostructured strontium hexaferrite thin films by a sol-gel method

被引：19

作者：

Masoudpanah, S. M. ^{[1
]}

Ebrahimi, S. A. Seyyed ^{[1
]}

机构：

[1] Univ Tehran, Sch Met & Mat, Ctr Excellence Magnet Mat, Tehran, Iran

来源：

RESEARCH ON CHEMICAL INTERMEDIATES | 2011年 / 37卷 / 2-5期

关键词：

Thin film; Sol-gel; Hexaferrite; Nanostructure; MAGNETIC-PROPERTIES;

D O I：

10.1007/s11164-011-0286-y

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nanostructured single-phase strontium hexaferrite, SrFe12O19 (SrM), thin films have been synthesized successfully for the first time on silicon substrates using a spin-coating sol-gel process. The precursor solution was prepared from metal nitrates, citric acid, and ethylene glycol. The thin films with various Fe/Sr molar ratios of 8-12 were heat treated at different temperatures from 700 to 900 degrees C. The composition, microstructure, and magnetic properties of the SrM thin films were also characterized. The results showed that the optimum molar ratio for Fe/Sr was 10, at which the lowest calcination temperature for obtaining the single-phase strontium hexaferrite thin films was 800 degrees C. The crystallite size of the resultant thin films was below 50 nm.

引用

页码：259 / 266

页数：8

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