化学冶金法制备Fe、Co和Ni基纳米粉体的磁性能

IF 0.5 Q4 CHEMISTRY, MULTIDISCIPLINARY

Eurasian Chemico-Technological Journal Pub Date : 2021-03-25 DOI:10.18321/ECTJ1028

T. H. Nguyen, Y. Konyukhov, N. Minh, D. Karpenkov, V. Levina, G. Karunakaran, A. G. Buchirina

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引用次数: 3

摘要

本研究描述了Fe、Co和Ni金属纳米粉末及其三元纳米复合材料（NCs）的磁性能，这些材料可作为无线电波吸收复合材料和涂层的填料，也可用于钞票和安全纸的磁性保护。采用化学冶金方法制备了纳米粉体。通过共沉淀、添加表面活性剂以及改变还原温度和时间参数，实现了Fe、Co和Ni NPs和NCs的所需性能。磁性测量表明，所有纯金属纳米颗粒样品都是半硬磁性材料。添加的表面活性剂对Fe、Co和Ni纳米颗粒的尺寸和磁性有明显的影响。Ni–Co–Fe NCs也是主要的半硬磁性材料。通过对它们的组成和化学还原温度进行微调，可以将Ms和Hc的值分别控制在49至197 A·m2/kg和4.7至60.6 kA/m的大范围内。

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Magnetic Properties of Fe, Co and Ni Based Nanopowders Produced by Chemical-Metallurgy Method

This research study describes the magnetic properties of Fe, Co and Ni metallic nanopowders (NPs) and their ternary nanocomposites (NCs), which can be used as fillers in radio-wave absorbing composite materials and coatings, as well as for magnetic protection of banknotes and security paper. The nanopowders were prepared by the chemical metallurgy method. The desired properties of Fe, Co and Ni NPs and NCs were achieved by co-precipitation, the addition of surfactants and changes in reduction temperature and time parameters. Magnetic measurements showed that all samples of pure metal NPs are semi-hard magnetic materials. The added surfactants have distinct effects on the dimensional and magnetic characteristics of Fe, Co and Ni NPs. Ni–Co–Fe NCs are also mainly semi-hard magnetic materials. Fine-tuning of their composition and chemical reduction temperatures allows controlling the values of Ms and Hc in large ranges from 49 to 197 A·m2/kg and from 4.7 to 60.6 kA/m, respectively.

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来源期刊

Eurasian Chemico-Technological Journal CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

1.10

自引率

20.00%

发文量

审稿时长

20 weeks

期刊介绍： The journal is designed for publication of experimental and theoretical investigation results in the field of chemistry and chemical technology. Among priority fields that emphasized by chemical science are as follows: advanced materials and chemical technologies, current issues of organic synthesis and chemistry of natural compounds, physical chemistry, chemical physics, electro-photo-radiative-plasma chemistry, colloids, nanotechnologies, catalysis and surface-active materials, polymers, biochemistry.