氧化钇纳米涂层材料的火焰合成与红外透射性能  

Yttrium-Based Nanoparticles:Flame Aerosol Synthesis and Enhanced Infrared Transmittance Properties

作　　者：宗毅晨[1] 余丹妮[1] 刘晨阳[1] 李水清[1] 姚强[1] Zong Yichen;Yu Danni;Liu Chenyang;Li Shuiqing;Yao Qiang(Key Laboratory for Thermal Science and Power Engineering of Ministry of Education,Tsinghua University,Beijing 100084,China)

机构地区：[1]清华大学热能工程系热科学与动力工程教育部重点实验室,北京100084

出　　处：《燃烧科学与技术》2017年第4期289-292,共4页Journal of Combustion Science and Technology

基　　金：国家自然科学基金资助项目(51176094)

摘　　要：使用滞止旋流火焰燃烧器一步合成了氧化钇纳米红外涂层材料,其平均颗粒粒径为(8.6±0.4),nm,并具有典型的Y_2O_3(2,2,2)晶面和(4,0,0)晶面.基于火焰合成得到的二氧化钛薄膜,在火焰中原位喷涂了不同掺杂比的氧化钇涂层材料,并在红外波段进行了透射性能测试.结果表明,少量的氧化钇涂层(2%,掺杂)即可显著提升薄膜材料的红外透射性能,其中2.97,?m附近中红外波段的透射率提升幅度最大,这是由于火焰合成的掺杂过程改变了薄膜材料的表面光学性质.Yttrium oxide nanoparticles were synthesized through stagnation swirl flame,with the average size of(8.6±0.4),nm.The as-synthesized nanoparticles show typical Y2O3(2,2,2)and(4,0,0)lattices.The yttriumoxide particles were doped with flame-made TiO2films by in situ coating in flame.The infrared transmittanceproperties of the materials were tested under infrared region.The results show that2%,Y2O3doping dramaticallyincreases the infrared transmittance properties of the film,especially at2.97,μm mid-infrared region.The infraredtransmittance enhancement is probably induced by the Y/Ti interaction on the surface due to the atomic dopingprocess in flame aerosol synthesis.

关 键 词：火焰合成 纳米颗粒 氧化钇 红外透射 

分 类 号：TK448.21[动力工程及工程热物理—动力机械及工程]