化学沉淀-局部规整法制备一维磁铅石型锶铁氧体  

Preparation of Strontium Ferrite of One-Dimensional Via Precipitation-Toptactic Reaction Method

作　　者：徐洋洋[1] 孟锦宏[1] 曹晓晖[1] 

机构地区：[1]沈阳理工大学环境与化学工程学院,辽宁沈阳110159

出　　处：《沈阳理工大学学报》2012年第6期6-8,21,共4页Journal of Shenyang Ligong University

基　　金：国家自然科学基金资助(51172148)

摘　　要：以自制针状α-FeOOH为原料,采用化学沉淀-局部规整法制得棒状SrFe12O19,其颗粒长径比为3～6。经XRD、SEM等表征技术表征,研究前驱体焙烧温度和预烧对所制备棒状SrFe12O19的影响。结果表明,900～1100℃范围,前驱体焙烧温度的升高促使SrFe12O19的棒状形貌逐渐消失并形成片状;前驱体焙烧前进行预烧则有利于产物一维形貌和纯度的提高。Using rod-like ot-FeOOH as raw material,the rod-like SrFel2Ol9 was synthesized by precipitation-toptactic reaction method and the length-diameter ratio is about 3 -6. XRD and SEM were used to show the influences of pre-calcination and calcinations temperature on the rod-like SrFe12019. The results showed that at 900 - ll00 ℃ the rod-like appear- ance of the precursor disappears and gradually takes the sheet shape with calcinations temperature increasing. A pre-calcination of the precursor was helpful for the one-dimensional formation and purity improvement of the final product.

关 键 词：Α-FEOOH 棒状SrFe12O19 化学沉淀-局部规整法 

分 类 号：TB34[一般工业技术—材料科学与工程]