The attenuation performance of red phosphorus smoke combined with several superfine powders to 10.6μm laser emission
Some red phosphorus smoke was produced in a smoke chamber and combined with superfme graphite, nanometer alumina and nanometer iron powder to test their attenuation performance to 10.6μm laser emission.The effect of air relative humidity, granularity, concentration and other factors to the extinction performance of the smoke were analyzed.By the results, an active function can be produced to decrease the sedimentation rate of superfine powders and increase the extinction of red phosphorus smoke to 10.6μm laser emission by combining red phosphorus smoke with various superfine powders.The extinction performance of the combined smoke to 10.61μm laser emission is decided by red phosphorus smoke, so that adding any superfine powder can increase the extinction of the combined smoke to 10.6un laser emission.The combined smoke with a good adding proportion will produce better extinction performance to 10.6μm laser emission than the single smoke.On the contrary, the sedimentation rate of the combined smoke will increase and the extinction performance to 10.6μm laser emission will decrease.As a conclusion, it is necessary to control the adding rate of powder to improve the extinction performance of the combined smoke.
Smoke red phosphorus laser,extinction coefficient graphite nanometer alumina nanometer iron
WANG Xuanyu PANG Minhui DONG Wenjie
The Laboratory of Pyrotechnical Technology,Institute of Chemical Defense,Beijing 102205,China
国际会议
成都
英文
225-231
2013-09-24（万方平台首次上网日期，不代表论文的发表时间）