Development of cobalt oxide and titanium carbide based composite for microwave absorption in X-band

被引：5
作者：
Ahlawat, Aarushi [1 ,2 ]
Bala, Manju [1 ,2 ]
Nayak, Manoj K.
Tyagi, Sachin [1 ,2 ,3 ]
机构：
[1] CSIR Cent Sci Instruments Org, Chandigarh 160030, India
[2] Acad Sci & Innovat Res, Ghaziabad 201002, India
[3] CSIR CSIO, Mfg Sci & Instrumentat, Chandigarh 160030, India
来源：
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2024年 / 305卷
关键词：
Attenuation; Bandwidth; Composites; Sol; -gel; MAGNETIC-PROPERTIES; FACILE SYNTHESIS; ABSORBING PROPERTIES; FE3O4; NANOPARTICLES; CARBON NANOTUBES; CO3O4; NANOCOMPOSITES; PERFORMANCE; SPHERE;
D O I：
10.1016/j.mseb.2024.117447
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
By incorporating cobalt oxide (Co3O4) and titanium carbide (TiC), the electromagnetic wave-absorbing material is developed with the aid of the mechanical milling technique. Co3O4 nanomaterial is synthesized via autocombustion, while Co3O4-TiC composites are created using planetary ball mill. The materials are analyzed using characterization techniques like XRD, SEM, and VSM for their structural, morphological, and magnetic properties, respectively. The minimal reflection loss (RLmin) of - 25.6 dB is observed at 10.5 GHz for Co3O4-TiC (20 %-80 %) composite. This RLmin is obtained with a sample thickness of 1.3 mm. The adequate bandwidth for less than -10 dB loss is observed to be 2.5 GHz (63 % of X band). The maximum attenuation constant of 175 Np/ m is obtained within the 8-12 GHz frequency range. The synergic effects of magnetism and dielectricity in Co3O4-TiC composites improve impedance matching. The present material holds significant potential as an effective electromagnetic wave absorber for diverse modern technologies.
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页数：13
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