Mn_xZn_(1-x)Fe_2O_4制备工艺及纳米晶粒度研究  

Study on Preparation Process and Nanocrystal Size of Mn_xZn_(1-x)Fe_2O_4

作　　者：张雪峰[1,2] 余效强[1,2] 刘艳丽[1,2] 马强[1,2] 李永峰[1,2] 王高峰 

机构地区：[1]内蒙古自治区白云鄂博矿多金属资源综合利用重点实验室,包头014010 [2]内蒙古科技大学数理与生物工程学院,包头014010

出　　处：《人工晶体学报》2013年第6期1148-1153,共6页Journal of Synthetic Crystals

基　　金：国家自然科学基金(51074091);内蒙古自治区自然科学基金(2012MS0802)

摘　　要：本文概述用溶胶-凝胶法制备锰锌铁氧体系列粉末的工艺;通过凝胶的差热分析实验,掌握制备锰锌铁氧体系列粉末适当的煅烧温度区间;列出MnxZn1-xFe2O4(x=0.25、0.5、0.75)样品的XRD衍射图;用不同的煅烧温度和不同的煅烧时间来处理x=0.25的样品,得到的数据通过多项式拟合,求出晶粒度与煅烧温度(D-T)曲线方程和晶粒度与煅烧时间(D-t)的曲线方程;分别讨论晶粒度随二者变化的原因。In this paper,the preparation of a series of manganese zinc ferrite powders using sol-gel method was reported. The suitable calcining temperatures of the samples were determined by means of Differential Thermal Analysis experiment on a gel. X-ray diffraction patterns of Mn x Zn 1 - x Fe2O4 (x =0. 25,0. 5,0. 75) samples were given. The relationships of the crystal size vs the calcining temperature (D-T) and the crystal size vs the calcining time (D-t) were fitted by polynomial functions for x = 0. 25 samples with changing the temperature and the time. The reasons of the crystal size variation as result of that two factors are discussed.

关 键 词：锰锌铁氧体 晶粒度 溶胶-凝胶法 

分 类 号：O78[理学—晶体学]