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本文在先前对γ-FeOOH脱水产品γ-Fe_2O_3(以下称样品I)的XDA和TG—DTA分析研究的基础上,进一步对此产品进行电镜形貌分析和穆斯堡尔谱分析,并与由γ-FeOOH经还原氧化的产品γ-Fe_2O_3(以下简称样品Ⅱ)比较,进一步从结构和形貌上找出样品I磁性能低的原因,并进而探讨了γ-FeOOH在脱水的热处理过程中晶粒生长的情况,结合磁性测量,得出仅由对γ-FeOOH作长时间
Based on the previous studies on XDA and TG-DTA analysis of γ-FeOOH dehydrated productγ-Fe_2O_3 (hereinafter referred to as Sample I), the morphology of the product was further analyzed by SEM and Mossbauer spectroscopy, γ-FeOOH by reduction and oxidation of the product γ-Fe_2O_3 (hereinafter referred to as sample Ⅱ) comparison to further find out from the structure and morphology of the magnetic properties of the sample I was low, and then discussed the γ-FeOOH dehydration in the heat treatment of crystal In the case of grain growth, combined with the magnetic measurements, it was concluded that only the γ-FeOOH was allowed to grow for a long time