Study on radar-wave absorbing properties of T-ZnOw/Fe composite absorbent

Tetrapod-shaped zinc oxide whisker(T-ZnOw) has been discovered as the whisker that has the unique three-dimensional and tetrapod-shaped structure.It has the characteristics such as material strengthen,antistatic,antibiosis,sound and micro-wave absorption,and it is a multi-purpose materials with great potential development.In this paper,taken advantage of the electric loss characteristic which T-ZnOw has,mixed with the carbonyl iron powder to obtain the composite absorbent.The radar-wave absorbing coating were prepared with T-ZnOw and epoxy,when coat's thickness is 3.0mm,and the mass ratio between the absorbent and the resin 2:1,the most reflection attenuation amout of-24dB,corresponding frequency at 8.5GHz,and the band width that less than-10dB approximately 5.0GHz.