The optical cross sections of the Al 2O 3 C composite microparticle groups were calculated by using Aden?s and Kerker?s theory of Mie scattering. The emissivity spectra of the mixed groups of Al 2O 3 C composite microparticles were also calculated.

• 利用 Aden和 Kerker微粒子 Mie散射理论 ,计算 Al2 O3-C复合微粒子群的光学截面及混合后的 Al2 O3-C粒子群的发射率光谱