纳米镍粉对1.06 μm和10.6 μm激光的消光性能研究

摘要

The extinction performance of 30 g nano-Ni powder smoke to 1.06 μm and 10.6 μm laser were tested in 20 m3 smoke chamber. Its mass extinction coefficient is 1.542 and 1.078 m2·g-1respectively, and the sedimentation rate is 1.035×10-3 m·s-1. Compared with the smoke performance of conventional materials such as HC, RP, oil, graphite, carbon black, nano-Ni powder smoke has better extinction capability to 1.06 μm and 10.6 μm laser and possesses the better suspending characteristic in the air.%在容积为20 m3的烟幕箱中测试了30 g纳米镍粉形成的烟幕对1.06 μm和10.6 μm激光的消光性能.其质量消光系数分别为1.542 m2·g-1、1.078 m2·g-1,沉降速度为1.035×10-3 m·s-1,与常规材料的烟幕性能比较表明,纳米镍粉形成的烟幕消光性能好,悬浮时间长,是一种能有效干扰1.06 μm和10.6 μm激光的新型烟幕材料.