Bi_2O_3/ATO混烧填料的制备及其红外发射率研究

Preparation and infrared emissivity of Bi_2O_3/ATO mixed burning filler

采用固相法制得了Bi2O3/ATO混烧填料。借助XRD、紫外-可见分光光度计、SEM、EDS、FT-IR以及红外辐射率仪对Bi2O3/ATO混烧填料的相组成、可见光区的反射率、形貌、元素组成、红外透过率和红外辐射率进行了表征。结果表明,实验制得的Bi2O3/ATO混烧填料具有较好的红外透明性;随着Bi2O3含量的增加,红外辐射率先减小后增大,当Bi2O3含量为70%(质量分数)时红外辐射率值最低为0.67;粉体颜色可以根据Bi2O3含量的变化进行调节,适于制备多色红外迷彩填料。

Bi2O3/ATO powders were prepared by solid state reaction.The phase composition,reflectivity in visible region,morphology,elemental composition,infrared transmittance and infrared emissivity of the obtained Bi2O3/ATO powders were characterized by XRD,ultraviolet-visible spectrophotometer,SEM,EDS,FT-IR and infrared emissivity analyzer,respectively.The results showed that the obtained Bi2O3/ATO powders possessed excellent infrared transparency.Moreover,infrared emissivity decreased first and then increased with the increase of the Bi2O3 contents,and infrared emissivity reached the minimum 0.67 when the content of Bi2O3 was 70wt%.In addition,the colors could be adjusted by changing the content of Bi2O3.Bi2O3/ATO powders were suitable for preparing the multicoloured infrared camouflage packing.