摘要
研究了烧结温度和掺杂对软磁锰锌铁氧体材料性能和微观结构的影响。采用传统成型工艺和冷等静压成型相结合，进行分段烧结，研究坯体的致密化程度和晶粒生长情况。烧结体的密度、微观结构和相组成分别采用阿基米德法、扫描电镜（SEM）和X射线衍射仪（XRD）进行测试分析。烧结体的磁性能用振动样品磁强计（VSM）来测定。结果表明：烧结温度在850℃时材料密度、微观结构和磁性能较好，但还未能达到高性能产品的标准，需要通过掺杂等其他手段进行进一步研究。
Sintering temperature and dopen effecting on properties and microstructure are studied. The density, microstructure and phase composition of sintered compacts of Mn-Zn ferrite nanopowders were measured by Archimedes method, X-ray difraction（XRD）and scanning electron microscopy（SEM）, respectively. The results show that the density, microstructure and magnetic property of sintered compacts of Mn-Zn ferrite nanopowders are better, but not good enough. Other ways such as adding dopens need to be studied.
基金
河北省自然科学基金资助项目（E2005000027）,天津市自然科学基金资助项目（06YFJMJC02400）
关键词
锰锌铁氧体
烧结温度
掺杂
磁性能
Mn-Zn ferrite
sintering temperature
dopen
magnetic property
