A study of flames with millimeter-wave radiation  

作　　者：Jing-ran Xu Ru Peng Chen-guang Zhu Xiao Xie Chen-guang Yan 

机构地区：[1]Department of Applied Chemistry,School of Chemical Engineering,Nanjing University of Science and Technology,Nanjing,Jiangsu,China

出　　处：《Defence Technology（防务技术）》2020年第4期876-882,共7页Defence Technology

基　　金：support for this work was provided by the National Natural Science Foundation of China(Project No.51676100)。

摘　　要：It is a valuable issue to explore whether a flame can radiate microwaves,in spite of the electric field formed in the flame.Presented herein is an experimental study on a series of flames with millimeterwave radiation in the combustion of pyrotechnic films.The pyrotechnic films were composed of ultrafine red phosphorus(P),sodium nitrate(NaNO_3),Polyvinyl Alcohol(PVA) and some additives such as chopped carbon fibers(CFs) and aluminized glass fibers(GFs).The combustion temperatures and millimeter-wave radiation signals of the flames were measured,the millimeter-wave emissivity and spectral radiant exitance were calculated to describe the millimeter-wave radiation intensity.The results demonstrate that the flame of the pyrotechnic films based on P/NaNO_3/CFs can radiate millimeter waves,and different materials and their proportion have a great effect on the millimeter-wave radiation intensity.

关 键 词：COMBUSTION FLAME PYROTECHNICS Millimeter-wave radiation 

分 类 号：TJ765.3[兵器科学与技术—武器系统与运用工程]