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Synthesis and Electromagnetic Wave Absorption Properties of Beaded Silicon Carbide/Silica Nanowires
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Haikang ZHENG1, Zhihong WU1, 2, Luping ZHANG1, Qian WANG1, Zhenzhen MENG1, Kai SHANG1
Journal of the Chinese Ceramic Society | 2020, 48(1) : 8 - 14
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Journal of the Chinese Ceramic Society | 2020, 48(1): 8-14
Synthesis and Electromagnetic Wave Absorption Properties of Beaded Silicon Carbide/Silica Nanowires
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Haikang ZHENG1, Zhihong WU1, 2, Luping ZHANG1, Qian WANG1, Zhenzhen MENG1, Kai SHANG1
Affiliations
  • 1.College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
  • 2.State Key Laboratory of Advance Refractories, Sinosteel Luoyang Institute of Refractories Research Co., Ltd., Luoyang 471039, Henan, China

    • ZHENG Haikang (1993-), male, Master candidate. E-mail:

About Author:

ZHENG Haikang (1993-), male, Master candidate. E-mail:

Published: 2020-01-20 doi: 10.14062/j.issn.0454-5648.20190211
Outline
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Beaded silicon carbide (SiC) nanowires were synthesized via carbothermic reduction of silica in inert atmosphere with bamboo carbon as a carbon source. The morphology, phase and chemical composition of the beaded SiC/SiO2 nanowires were characterized by scanning electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy. The as-synthesized beaded SiC/SiO2 nanowires with the smooth surface are composed of nanowires with the diameters of 150-200 nm and SiO2 beads with the diameters of 1-2 µm uniformly distributed on SiC nanowires. The dielectric permittivity of the samples were measured at room temperature at X band (i.e., 8.20-12.40 GHz), and the reflection loss of the samples at different thicknesses was calculated by the transmit line theory. The results show that the effective absorption bandwidth of the composite absorbing materials is 2.32 GHz (RL<-10 dB) with the thickness of 1.80 mm, and the minimum reflection loss of the sample reaches -43.58 dB.

beaded silicon carbide/silica nanowires  /  microstructure  /  carbothermic reduction  /  microwaving absorbing properties
郑海康, 武志红, 张路平, 王倩, 蒙真真, 尚楷. 念珠状碳化硅/二氧化硅纳米线的制备及电磁波吸收性能. 硅酸盐学报, 2020 , 48 (1) : 8 -14 . DOI: 10.14062/j.issn.0454-5648.20190211
Haikang ZHENG, Zhihong WU, Luping ZHANG, Qian WANG, Zhenzhen MENG, Kai SHANG. Synthesis and Electromagnetic Wave Absorption Properties of Beaded Silicon Carbide/Silica Nanowires[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (1) : 8 -14 . DOI: 10.14062/j.issn.0454-5648.20190211
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Year 2020 volume 48 Issue 1
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Article Info
doi: 10.14062/j.issn.0454-5648.20190211
  • Receive Date：2019-04-03
  • Online Date：2026-10-29
  • Published：2020-01-20
Article Data
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History
  • Received：2019-04-03
  • Revised：2019-04-28
Funding
Affiliations
    1.College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
    2.State Key Laboratory of Advance Refractories, Sinosteel Luoyang Institute of Refractories Research Co., Ltd., Luoyang 471039, Henan, China

Corresponding:

WU Zhihong (1974-), male, Ph.D., Associate Professor. E-mail:
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表12种不同金属材料的力学参数
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Number of
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Number of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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