研究目的
Investigating the electromagnetic behavior of Silicon Carbide (SiC) nanoparticles and their potential for structural health monitoring by examining their permittivity and permeability characteristics.
研究成果
The characterization of selected materials demonstrated their high purity and nano-scale size. SiC whisker showed high permittivity, making it a good electromagnetic reflector. The study suggests that these materials, except SiC whisker, have promising transmission properties for electromagnetic waves, useful in structural health monitoring.
研究不足
The study focused on the X-band range and room temperature conditions. The effect of higher frequencies and temperatures on the materials' electromagnetic properties was not explored.
1：Experimental Design and Method Selection:
The study involved exposing the material under test (MUT) directly to a microwave field to examine its electromagnetic behavior. XRD, FESEM, and measurements of complex permittivity and permeability were conducted.
2：Sample Selection and Data Sources:
β-SiC whisker and nanoparticles, Fe2O3 nanoparticles, ZnO, and amorphous Ni powders were used.
3：List of Experimental Equipment and Materials:
Field-Emission Scanning Electron Microscope (FE-SEM, Model Supra 55VP, Carl Zeiss AG), X-ray Powder Diffraction (XRD, Model X’Pert3 Powder, PANalytical), network analyzer (ENA, Keysight E5071C).
4：Experimental Procedures and Operational Workflow:
The powders were mixed with epoxy in a desired weight ratio, pressed into rectangular shapes, and cured in a drying oven.
5：Data Analysis Methods:
The complex permittivity and permeability were measured using a network analyzer in the X-band range.
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