NaBa_(1-x)A_xPO_4(A=Mg,Ca,Sr)材料的制备和红外辐射特性  

Preparation of NaBa_(1-x)A_xPO_4(A = Mg,Ca,Sr) Materials and Characteristics of Infrared Radiation

作　　者：邓玲玲[1] 赵韦人[1] 方夏冰[1] 蓝立财 钟剑明[1] 

机构地区：[1]广东工业大学物理与光电工程学院,广东广州510006

出　　处：《广东工业大学学报》2015年第2期114-119,共6页Journal of Guangdong University of Technology

基　　金：广东省教育部产学研结合项目(2010B090400021)

摘　　要：用高温固相法合成了NaBaPO4结构材料．NaBaPO4是一类常用于荧光粉基质的材料，本实验通过X射线衍射、红外光谱吸收和发射率表征了材料的结构特性和红外辐射性能，发现NaBaPO4具有很好的辐射性能，当掺杂Mg2＋、Ca2＋和Sr2＋后，引起NaBaPO4晶体的金属离子和氧离子的键长改变，使分子间振动改变，发射率改变．其中以NaBa0.85 Mg0.15 PO4的红外辐射性能最佳，8～14μm波段的发射率可达0.924．NaBaPO4 powder with high emissivity is synthesized by solid state reaction .And infrared radi-ation properties of NaBaPO 4 can be examined by XRD patterns , infrared transmittance spectra and infra-red emissivity.NaBaPO4 powder, when doped with Mg2＋, Ca2 ＋and Sr2＋, will change the bond strength of metal ions and oxygen ions .It can also change the lattice vibration and increase the infrared emissivi-ty.Among the materials of NaBaPO4, we found that the NaBa0.85Mg0.15PO4 can reach the emissivity as high as 0.924 at the wave range of 8~14 μm.

关 键 词：NaBaPO4 红外辐射 发射率 掺杂 

分 类 号：O482.2[理学—固体物理]