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首页> 外文会议>NATO Advanced Study Institute on Magnetic Storage Systems Beyond 2000, Jun 25-Jul 7, 2000, Rhodes, Greece >MAGNETIC AEROGELS
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MAGNETIC AEROGELS

机译：磁性气溶胶

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摘要

Iron oxide nanoparticles have been grown inside silica gel pores. The hybrid material was supercritically dried obtaining magnetic aerogels. The composite material could be produced as a monolith of any shape and with a range of magnetic dilutions. Samples were characterized by means of X-ray diffraction, TEM microscopy, Moessbauer spectroscopy and SQUID magnetometry. The iron oxide particles were identified as Y-Fe_2O_3 and their sizes ranged from 1 to 10 nm. Magnetic phase behaves stable to moderate heat treatments. These materials are expected to be promising candidates for magneto-optical applications as well as in catalytic chemical reactions.
机译：氧化铁纳米颗粒已经在硅胶孔中生长。将杂化材料超临界干燥，得到磁性气凝胶。复合材料可以制成任何形状和一定范围的磁稀释度的整料。样品通过X射线衍射，TEM显微镜，Moessbauer光谱和SQUID磁力计进行表征。氧化铁颗粒鉴定为Y-Fe_2O_3，其尺寸范围为1至10 nm。磁相的性能稳定到中等程度的热处理。这些材料有望成为磁光应用以及催化化学反应中有希望的候选材料。

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