纳米晶锰锌铁氧体的低温合成  

Synthesis of Mn-Zn-Ferrite Nano-crystal at Low Temperature Condition

作　　者：钱达兴[1] 洪雪辉[1] 游淑洁[2] 

机构地区：[1]同济大学材料科学与工程学院,上海200092 [2]中国科学院物理研究所,北京100080

出　　处：《建筑材料学报》2004年第3期346-349,共4页Journal of Building Materials

摘　　要：采用热分析、X射线衍射、激光粒度分析等方法,研究了柠檬酸盐法纳米锰锌铁氧体的制备过程.结果表明:用柠檬酸盐法获得的锰锌铁氧体前驱体是复杂的有机络合晶体,在热处理过程中前驱体发生了复杂的变化,除有机物的分解、挥发、氧化反应外,还出现了铁氧体的结晶和再结晶.在350°C以下,可制得纳米晶锰锌铁氧体粉末.The preparing process of Mn-Zn-ferrite nano-crystals by citrates method was investigated by DSC, X-ray diffraction and laser size analysis. The results shown: the precursor of Mn-Zn-ferrite by citrates method is organic complicated complexion crystals. During the heat treatment, crystallization and recrystallization of the ferrite happen besides the chemical and physical reaction, example resolving, volatilizing and oxidizing reactions of this precursor. When the temperature is lower than 350(°C), Mn-Zn-ferrite powders can be obtained.

关 键 词：低温合成 前驱体 络合 柠檬酸盐法 氧化反应 制备过程 纳米晶 锰锌铁氧体 X射线衍射 粉末 

分 类 号：TU528.01[建筑科学—建筑技术科学] TM277[一般工业技术—材料科学与工程]