Fabrication of novel silicon carbide‐based nanomaterials with unique hydrophobicity and microwave absorption property

Abstract

With the rapid development of modern electronic information technology, the issues caused by electromagnetic interference (EMI) are becoming more and more serious in the field of civilian. The EMI can not only hinder the normal functions of electronic devices, but also contribute to negative impact on the health of human beings and wildlife. 1,2 In addition, in the military applications, electromagnetic (EM) microwave can be used to detect aircrafts, which might expose the location information of these facilities, thus horribly threatening their survival. 3 Therefore, there is an urgent demand in both civil and military fields for high-performance MA materials that can efficiently absorb EM waves. The ideal MA materials should not only possess remarkable MA capacity over a wide frequency range, but also require some other special properties, such as light weight, thin thickness, good environment stability, etc. 4,5 To exploit the ideal MA materials

High-Performance Microwave Absorption Materials: Theory, Fabrication, and Functionalization

“…However, MAMs with only one loss mechanism often show poor impedance matching with the air, which is difficult to meet the current increasing demands . Considering this, MAMs simultaneously possessing dielectric and magnetic loss (that is denoted as electromagnetic synergistic loss MAMs) are proposed and designed accordingly, which seem to achieve the goal of “thin, wide, light, strong” (that is thin thickness, effective absorption bandwidth coverage frequency, quality as far as light as possible, absorption of microwave ability). − …”

Feasibility Study of Microwave Welding of Polypropylene Using Silicon Carbide Nanowhiskers as Microwave Susceptor

“…To replace carbon material and conductive polymer, silicon carbide (SiC) stands out among the susceptor. In aspect of microwave absorption performance, SiC is a type of dielectric and polar material with significantly high dielectric loss and reflection loss, which makes it a promising microwave susceptor [17][18][19]. In addition to having excellent microwave susceptibility, an ideal microwave susceptor should be light in weight, have good mechanical properties and be environmentally stable even in harsh environment.…”

High‐temperature strength of liquid‐phase‐sintered silicon carbide ceramics: A review

“…Over the last few decades, silicon carbide (SiC) ceramics have been extensively utilized in various industries, including aerospace, aeronautics, automotive, biomedical, nuclear reactors, filtration, heat exchangers, concentrated solar power, thermoelectric conversion, catalytic support, membranes, thermal insulators, gas turbines, semiconductor processing parts, and diesel particulate filters, owing to their excellent high‐temperature stability, low bulk density, high thermal conductivity, excellent high‐temperature strength, high oxidation and corrosion resistances at high temperatures, and excellent chemical stability 1–38 …”