The microstructure and electromagnetic wave absorption properties of near-stoichiometric SiC fibre
Source abstract
Abstract
Abstract The microstructure and electromagnetic (EM) properties of near-stoichiometric SiC fibres (with C/Si ratio of 1.125) were analyzed and evaluated in detail. The SiC fibres consisted of β-SiC nanocrystallines and free carbon, and exhibited a uniquely specific skin-core structure with thin carbon layer of 5 nm on their surfaces. The relative complex permittivity increased with the increasing fibre volume fraction from 13 vol% to 27.5 vol%. The imaginary part of permittivity increased from 1.36 to 2.13 at 10 GHz, due to more SiC nanocrystallines and interfaces generating. The EM wave absorption properties were enhanced by the increasing fibre volume fraction and the effective absorption bandwidth was approximately 2.6 GHz when the fibre volume fraction was 27.5 vol%.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Electromagnetic wave absorption materials · Fiber-reinforced polymer composites · Advanced ceramic materials synthesis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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