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以SnCl4·5H2O和SbCl3为原料,采用共沉淀法制备不同Sb掺杂量的氧化锡锑(ATO)纳米粉末。分别采用XRD、FESEM、紫外可见分光光度计和激光器对晶体结构、形貌、激光反射率进行表征,研究Sb掺杂量对ATO纳米颗粒的结构、晶粒尺寸和激光反射性能的影响。结果表明:共沉淀法制备的ATO纳米颗粒为四方相金红石结构,粒径大小约为几十纳米;随着Sb掺杂量的增加,ATO的晶粒尺寸减小,晶胞体积则逐渐增大;与未掺杂的SnO2粉末相比,Sb掺杂后的ATO粉末在1.06μm激光波长处的反射率明显低于未掺杂的SnO2的反射率;随着Sb掺杂量的增加,反射率值呈先减小后增大的趋势,在Sb掺杂量为20%时,ATO粉末在1.06μm激光波长处的反射率低于0.02%,激光隐身性能最佳。
SnO4 · 5H2O and SbCl3 were used as raw materials to prepare antimony tin oxide (ATO) nano-powders with different Sb doping amount by coprecipitation method. The crystal structure, morphology and laser reflectivity were characterized by XRD, FESEM, UV-visible spectrophotometer and laser respectively. The effects of Sb doping on the structure, grain size and laser reflectivity of ATO nanoparticles were studied. The results show that the ATO nanoparticles prepared by coprecipitation method are tetragonal rutile structure and the particle size is about several tens of nanometers. With the increase of Sb doping amount, the grain size of ATO decreases and the unit cell volume increases ; Compared with undoped SnO2 powder, the reflectivity of Sb-doped ATO powder at 1.06μm laser wavelength is obviously lower than that of undoped SnO2. With the increase of Sb doping amount, the reflectivity When the Sb doping amount is 20%, the reflectivity of ATO powder at 1.06μm laser wavelength is less than 0.02%, and the laser stealth performance is the best.