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首页> 外文期刊>Materials Science and Engineering. B, Solid-State Materials for Advanced Technology >Synthesis, structure and magnetic properties Fe B_2O_3/H_3BO_3-coated Fe nanocapsules
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Synthesis, structure and magnetic properties Fe B_2O_3/H_3BO_3-coated Fe nanocapsules

机译:Fe B_2O_3 / H_3BO_3包覆的Fe纳米胶囊的合成,结构与磁性

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摘要

B_2O_3/H_3BO_3-coated Fe nanocapsules were synthesized by arc-discharge, evaporating a mixture of Fe micro-powders and B_2O_3 micro-powders. The results revealed that metallic Fe nanoparticles were uniformly coated with B_2O_3/H_3BO_3 shells, and the mean particle size ranged from 30 to 50 nm with ferromagnetic characteristics at room temperature. Thermal gravity analysis indicated that the B_2O_3/H_3BO_3 shells effectively protect the Fe cores from oxidation at/below 773 K. The microstructure, growth mechanism and magnetic properties were also investigated.
机译:通过电弧放电,蒸发Fe微粉和B_2O_3微粉的混合物,合成了B_2O_3 / H_3BO_3包覆的Fe纳米胶囊。结果表明,金属Fe纳米颗粒均匀地被B_2O_3 / H_3BO_3壳包覆,在室温下平均粒径为30〜50 nm,具有铁磁特性。热重分析表明,B_2O_3 / H_3BO_3壳层有效地保护了Fe核在773 K以下时被氧化。还研究了其微观结构,生长机理和磁性能。

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