水热法合成(Mn,Zn)Fe_2O_4磁性晶体粉末  

PREPARATION OF (Mn, Zn)Fe 2 O 4 MAGNETIC CRYSTALLINE POWDER BY THE HYDROTHERMAL METHOD

作　　者：胡嗣强[1] 黎少华[1] 

机构地区：[1]中国科学院化工冶金研究所

出　　处：《化工冶金》1997年第1期32-37,共6页

摘　　要：采用水热加工技术研究（Ｍｎ，Ｚｎ）Ｆｅ２Ｏ４晶体粉末的合成条件，对水热体系的碱度、温度、时间进行了系统实验．结果表明在ｐＨ＝７～１２．５范围内可有效合成（Ｍｎ，Ｚｎ）Ｆｅ２Ｏ４．当温度在１９０～２２０℃时，完成合成所需的时间为１～２ｈ，提高碱度有利于合成反应．本文还初步探讨了（Ｍｎ，Ｚｎ）Ｆｅ２Ｏ４的合成机理，为扩大实验提供依据．The hydrothermal synthesis of magnetic crystalline powder of (Mn,Zn)Fe 2 O 4 was studied by testing the influence of hydrothermalbasicity, temperature and time. The experimental results showed that (Mn,Zn)Fe 2 O 4 could be synthesized in the pH range of 7～12.5. Reaction at 150 ℃ for 3 h was not sufficient for completing the synthesis. The hydrotreating time would shorten to 2 or 1 hour by increasing the temperature to 190 ℃ or 220 ℃ accordingly. The hydrothermal synthesis mechanism of (Mn,Zn)Fe 2 O 4 was approached on thebasis of experimental results.

关 键 词：合成 水热法 铁酸锰锌 磁性材料 粉末冶金 

分 类 号：TF125.8[冶金工程—粉末冶金]