Coaxial electrospinning fabrication and radar-infrared compatible stealth properties of Zn0.96Co0.04O nanotubes

Indium tin oxide as a dual-band compatible stealth material with low infrared emissivity and strong microwave absorption

“…Infrared radiation power of an object is proportional to the fourth power of temperature. In conformity with Stefan-Boltzmann law: 19,54 P = esT 4 (7) where P represents the power density of radiation, s is the Stefan-Boltzmann constant (5.67 Â 10 À8 W m À2 K À4 ), e is surface emissivity, and T is the thermodynamic temperature. Therefore, infrared stealth materials must be able to control the temperature of its interaction with the outside, so as to achieve infrared shielding from heat sources.…”

“…5,6 In principle, compatible stealth materials for radar and infrared frequencies are mutually restrictive as their requirements on the intrinsic properties of materials are basically opposite. 7 EM absorption materials for radar stealth are generally required to strongly attenuate EM waves within 2-18 GHz with low reflectivity and high emissivity. 8,9 However, infrared stealth requires materials to have high reflection and low emission characteristics at 3-5 and 8-14 mm.…”

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

“…Stealth performance is an important indicator of weapons in military field, where there are two common stealth technologies including radar stealth and infrared stealth . Therefore, the compatibility of infrared and radar stealth has been widely discussed up to now . For radar stealth, MAMs are the core to absorb microwaves to achieve radar stealth.…”

1D Electromagnetic-Gradient Hierarchical Carbon Microtube via Coaxial Electrospinning Design for Enhanced Microwave Absorption

“…On the basis of the traditional electrospinning technology, the coaxial electrospinning process enables us to manufacture a variety of structures with advanced properties including hollow, core–shell, , fiber/tube-in-tube, and multichanneled by injecting core and shell solutions into coaxial needles with different diameters. − Besides, the process is able to make novel nanofibers from nonpolymeric materials which cannot be electrospun by themselves . Thus, a series of 1D hollow absorbers such as Zn 0.96 Co 0.04 O nanotubes, hollow SrM fibers, Fe 3 O 4 @C nanofibers/bismaleimide, and Y 3 Fe 5 O 12 @Na 0.5 K 0.5 NbO 3 core–shell nanofibers were designed . However, their properties are far from actual applications and need to be further electromagnetically regulated.…”