Shouyu Ren , Shaoyang Pan , Yuxin Jin , Kan Zhou , Xiaohui Liang , Zengming Man , Pengtao Cheng , Dunhui Wang
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引用次数: 0
Abstract
M-type ferrites are promising electromagnetic wave absorbing materials due to their high magnetic loss, strong coercive force and uniaxial magnetic crystal anisotropy. However, because of the poor dielectric loss of pure SrFe12O19, it can be combined with higher-dielectric-loss materials to improve electromagnetic wave absorption. MoS2 is widely used as an electromagnetic wave absorbing material owing to its semiconductor and moderate dielectric loss properties. Herein, SrFe12O19@MoS2 composites were prepared via a hydrothermal method. The results showed that the dielectric loss and electromagnetic wave absorption properties of the SrFe12O19@MoS2 composite are significantly improved compared with SrFe12O19 alone. At a matching thickness of 1.62 mm for SFO@MoS2-I, the minimum reflection loss (RLmin) reaches −63.06 dB at 11.6 GHz. Furthermore, the effective absorption bandwidth covers almost the entire Ku band with a thickness of 1.30 mm. Radar cross section simulation indicate that SFO@MoS2 exhibits strong electromagnetic wave attenuation. These results demonstrate that M-type ferrites are promising candidate for high efficiency absorbing materials.
期刊介绍：
Ceramics International covers the science of advanced ceramic materials. The journal encourages contributions that demonstrate how an understanding of the basic chemical and physical phenomena may direct materials design and stimulate ideas for new or improved processing techniques, in order to obtain materials with desired structural features and properties.
Ceramics International covers oxide and non-oxide ceramics, functional glasses, glass ceramics, amorphous inorganic non-metallic materials (and their combinations with metal and organic materials), in the form of particulates, dense or porous bodies, thin/thick films and laminated, graded and composite structures. Process related topics such as ceramic-ceramic joints or joining ceramics with dissimilar materials, as well as surface finishing and conditioning are also covered. Besides traditional processing techniques, manufacturing routes of interest include innovative procedures benefiting from externally applied stresses, electromagnetic fields and energetic beams, as well as top-down and self-assembly nanotechnology approaches. In addition, the journal welcomes submissions on bio-inspired and bio-enabled materials designs, experimentally validated multi scale modelling and simulation for materials design, and the use of the most advanced chemical and physical characterization techniques of structure, properties and behaviour.
Technologically relevant low-dimensional systems are a particular focus of Ceramics International. These include 0, 1 and 2-D nanomaterials (also covering CNTs, graphene and related materials, and diamond-like carbons), their nanocomposites, as well as nano-hybrids and hierarchical multifunctional nanostructures that might integrate molecular, biological and electronic components.
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