【摘要】 本文用化学分析、热分析、X-射线结构分析及扫描电镜等方法,研究了用草酸盐共沉法制备的锰锌及镍锌铁氧体的化学成分、结构、粉料颗粒的形貌及尖晶石相的生成情况。以便了解其变化机理,更好地控制各种工艺因素,改进材料的性能。更多还原

【Abstract】 The chemical compositions,structure and topography of the Mn-Zn and Ni-Zn ferrite powders prepared by chemical coprecipitation have been investigated by chemical analysis, diffrential thermal analysis, X-ray diffraction and SEM analysis.The formation of ferrite spinels in the heating process is discussed on the basis of the results.It is shown that,by suitably choosing preparation conditions, ferrite powders with desirable microstructures and properties are obtained.更多还原