Effect of nickel doping in cobalt titanate on structural and magnetic properties for microwave-absorbing application

IF 2.1 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Bulletin of Materials Science Pub Date : 2025-04-02 DOI:10.1007/s12034-025-03407-4

Yunasfi, Annisa Intan Fhadilla, Ramlan, Mashadi, Ade Mulyawan, Didin S Winatapura, Jan Setiawan, Wisnu Ari Adi, MP Izaak, YE Gunanto

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Abstract

Pure and Ni-doped CoTiO₃ powders with a nominal composition of the Co_(1–x)Ni_xTiO₃ (with x = 0.00; 0.25; 0.50 and 0.75) were prepared by mechanical milling using solid-state reaction from NiO, Co₃O₄ and TiO₂ powders as raw materials in mole ratio. The effect of Ni²⁺ doping on structural, particle morphology, elemental composition, magnetic properties and microwaves absorption characteristics of Co_(1–x)Ni_xTiO₃ was investigated by X-ray diffraction, scanning electron microscope, energy dispersive spectroscopy, Raman spectroscopy, vibration samples magnetometer and vector network analyzer, respectively. It was found that all fabricated samples show in single phase with hexagonal structure. However, with the presence of Ni²⁺ ions dopant, the particle size and saturation magnetization (M_s) values decrease, whereas the microwave absorption capability increases.

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钛酸钴中掺杂镍对吸波材料结构和磁性能的影响

纯CoTiO3和掺镍CoTiO3粉末，其标称成分为Co(1-x)NixTiO3 (x = 0.00；0.25;以NiO、Co3O4和TiO2粉末为原料，按摩尔比进行固相反应，采用机械铣削法制备0.50和0.75)。采用x射线衍射、扫描电镜、能量色散光谱、拉曼光谱、振动样品磁强计和矢量网络分析仪分别研究了Ni2+掺杂对Co(1-x)NixTiO3结构、颗粒形貌、元素组成、磁性能和微波吸收特性的影响。结果表明，制备的样品均呈单相六边形结构。然而，随着Ni2+离子掺杂的存在，颗粒尺寸和饱和磁化强度（Ms）值减小，而微波吸收能力增加。

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来源期刊

Bulletin of Materials Science 工程技术-材料科学：综合

CiteScore

3.40

自引率

5.60%

发文量

209

审稿时长

11.5 months

期刊介绍： The Bulletin of Materials Science is a bi-monthly journal being published by the Indian Academy of Sciences in collaboration with the Materials Research Society of India and the Indian National Science Academy. The journal publishes original research articles, review articles and rapid communications in all areas of materials science. The journal also publishes from time to time important Conference Symposia/ Proceedings which are of interest to materials scientists. It has an International Advisory Editorial Board and an Editorial Committee. The Bulletin accords high importance to the quality of articles published and to keep at a minimum the processing time of papers submitted for publication.