研究通过机械合金化制备的 Co-2 wt.% MWCNT 纳米复合材料的相位和磁性能

Pinjal Pandit, Swasata Ghosh, Goutam Roy, Arpita Chatterjee, Susmita Singh, Sumit Chabri
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引用次数: 0

摘要

钴含量为 2% 的 MWCNT 纳米复合材料是通过不同时间的机械合金化制造出来的。研究人员利用 X 射线衍射 (XRD)、差热分析 (DTA)、场发射扫描电子显微镜 (FESEM)、高分辨率透射电子显微镜 (HRTEM) 和超导量子干涉装置 (SQUID) 等现代技术,研究了添加 CNT 对样品中 Co 的形态和磁性特征的影响。结果表明,在研磨 60 分钟的样品中,保留了 2 重量百分比的 MWCNT 纳米复合材料中 Co 的特性。在机械合金化 60 分钟后,CNT 在钴基体中均匀分布,最终形成纳米颗粒团块。磁滞回线分析表明,CNT 的加入改变了纳米复合材料样品的磁特性。磁滞回线分析表明,CNT 的加入改变了纳米复合材料样品的磁特性。这项研究中发达的界面结构显著改善了钴-MWCNT 纳米复合材料的磁特性。
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Investigating phase and magnetic properties in Co-2 wt.% MWCNT nano-composites prepared by mechanical alloying
MWCNT nano-composites with a cobalt content of 2 weight percent were created by mechanically alloying during different times. Modern techniques, including x-ray diffraction (XRD), differential thermal analysis (DTA), field emission scanning electron microscopy (FESEM), high-resolution transmission electron microscopy (HRTEM) and superconducting quantum interference device (SQUID), were used to examine the effects of CNT addition on the Co morphology and magnetic characteristics of the samples. It was shown that the characteristics of Co in 2 weight percent MWCNT nano-composites were retained in a sample that was milled for 60 min. Agglomerates of nanoparticles were the end result, with CNTs evenly distributed throughout the cobalt matrix 60 min after mechanical alloying. Analysis of magnetic hysteresis loops revealed that the inclusion of CNTs altered the magnetic characteristics of nano-composite samples. Analysis of magnetic hysteresis loops revealed that the inclusion of CNTs altered the magnetic characteristics of nano-composite samples. The well-developed interfacial structure in this work significantly improved the cobalt-MWCNT nano-composites’ magnetic characteristics.
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来源期刊
CiteScore
3.80
自引率
16.70%
发文量
370
审稿时长
6 months
期刊介绍: The Journal of Process Mechanical Engineering publishes high-quality, peer-reviewed papers covering a broad area of mechanical engineering activities associated with the design and operation of process equipment.
期刊最新文献
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