固相法合成CuMn2O4红外辐射粉体研究

以CuO、MnO2为原料,采用固相反应法制备CuMn2O4尖晶石红外辐射粉体,通过XRD、SEM、FT-IR、TSS-5X红外发射率测量仪等测试手段对样品显微结构、物相组成和红外辐射性能进行了表征.结果表明:烧结温度在1050℃时,随着CuO含量的增加Cu2+将以四面体的形式存在于CuMn2O4尖晶石中.从XRD、红外光谱中能发现晶格常数常数先增加后减小,其红外发射率也先增加后降低.当体系中CuO含量为30％时,晶格常数增加至最大,样品的红外平均发射率达到最大0.92.继续提高合成温度,红外发射率从0.92下降到0.90.

Synthesis of CuMn_2O_4 Infrared Radiation Powder Using a Solid Phase Method

Using CuO and MnO2 as raw materials,we prepared CuMn2O4 spinel infrared radiation powder using a solid phase reaction method.The microstructure,phase composition,and new infrared radiation energy of the sample were characterized by X-ray diffraction(XRD),scanning electron microscopy,Fourier-transform infrared spectroscopy(FT-IR),a TSS-5X infrared emissivity measuring instrument,and other test methods.The results showed that when the sintering temperature is 1050℃,with an increase in CuO content,Cu^2+will exist in the form of a tetrahedron CuMn2O4 spinel.XRD and FT-IR observations revealed that both the lattice constant and its infrared emissivity first increase and then decrease.When the CuO content in the system is 30%,the lattice constant increases to the maximum,and the average infrared emissivity of the sample reaches the maximum of 0.92.When the synthesis temperature continues to increase,the infrared emissivity decreases from 0.92 to 0.90.