黄铜粉中锌含量对红外消光性能影响研究

Effect of the Zinc Content on IR Extinction Performance of Brass Powder

为了寻求具有最佳消光性能的金属粉末干扰剂应用于外层空间,基于Drude模型建立了金属粉中各成分含量与消光性能的关系模型,根据Mie理论对球状黄铜粉的消光示性数Qe/d进行了计算,结果表明,黄铜粉中锌含量较小时,消光性能随着锌含量的增加而逐渐增大,当达到42%左右时红外消光性能最佳。

For seeking metal powder interference agent with optimal extinction performance in outer space, the relationship model between each components content in metal powder and extinction performance is established on the basis of Drude model. The extinction parameter Qr/d of brass is calculated by Mie theory. Results show that when the zinc content in brass powder is lower, the extinction performance increases with the increasing of zinc content and the extinction performance is optimal when the zinc content reaches 42%. The experimental results demonstrate the rationality of the conclusion.