Integral absorptive power of dielectric-based metallic coatings for infra-red waves

Аuthors

Vinogradov V. S.^*, Ivanov A. V., Pal'ciz A. A., Cheredov V. V.

*e-mail: vin42@rambler.ru

Abstract

An integral absorptive power (thermal radiation coefficient) of dielectric-based metallic coatings is investigated for an infra-red waves case. Various coating structures were studied for different thickness values. It was established that reducing of the coating thickness leads to enhancement of the thermal radiation coefficient from a typical coating value to a typical substrate layer one. A physical interpretation is offered for absorption-emission processes related to the coating-substrate systems. A simple semi empirical model is derived to match computational and experimental data.