Magnetic Properties of Fe2O3 Particles Prepared by Sol-Gel Method
Magnetic Properties of Fe2O3 Particles Prepared by Sol-Gel Method
复制标题
溶胶-凝胶法制备Fe2O3颗粒的磁性
DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
D. Nižňanský
中科院分区：
文献类型：
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作者：
J. Dormann;N. Viart;J. Rehspringer;A. Ezzir;D. Nižňanský
采用溶胶-凝胶法制备了分散在硅胶中的Fe_2O_3微粒，并对其进行了表征。在4.2 K至300 K的温度范围内，用穆斯堡尔谱研究了各种样品。结果表明，最终热处理温度对Fe_2O_3的平均粒径和Fe_2O_3相的种类（α、γ或ε）有很大的影响。
Fe2O3 fine particles dispersed in a silica gel have been prepared by a new sol-gel method and characterized. Various samples have been studied by means of Mössbauer spectroscopy for temperatures ranging between 4.2 K and 300 K. The results show that the average particle size and the kinds of Fe2O3 phase obtained (α, γ or ε) are strongly dependent of the temperature on the final heat treatment.