MnO_2-Cr_2O_3-NiO系红外辐射材料的制备与性能研究  

Preparation and Properties of MnO_2-Cr_2O_3-NiO System Infrared Radiant Materials

作　　者：蓝立财 赵韦人[1] 邓玲玲[1] 方夏冰[1] 钟剑明[1] 

机构地区：[1]广东工业大学物理与光电工程学院,广州510006

出　　处：《人工晶体学报》2013年第11期2369-2374,共6页Journal of Synthetic Crystals

基　　金：广东省教育部产学研结合项目(2010B090400021)

摘　　要：采用高温固相反应，在950℃下制备了以MnO2-Cr2O3-NiO为基料的红外辐射材料，并通过掺杂不同含量的Ni2＋合成样品。利用热分析（TG-DSC）、XRD、红外光谱（IR）、拉曼光谱和红外辐射性能测试等方法测试样品的结构和红外辐射性能，研究了体系中NP含量对样品红外发射率的影响。结果表明：体系中随着Ni2＋含量的增加，样品的XRD、红外光谱、拉曼光谱和红外发射率都发生改变，当体系中NiO含量为30％时，样品红外发射率达到较大值，8～14μm波段的平均发射率达0．937；3～5μm波段的发射率明显提高，从0．383提高到0．737；此时继续增加NiO含量，样品发射率变化不大。The different content of Ni2＋ doped MnO2-Cr2O3-NiO powders were fabricated by the solid state reaction at the temperature of 950℃. The structure and infrared emission properties of the samples were examined by thermal analysis （TG-DSC）, X-ray powder diffraction （XRD）, infrared transmittance spectra （IR）, Raman spectra and infrared emission properties. The effects of different amount of Ni2＋ on the infrared emissivity were investigated. The results showed that the XRD patterns, infrared transmittance spectra, Raman spectra and infrared emissivity changes as the amount of Ni2＋ increasing, and when the content of NiO was about 30%, the powders have high emissivity, about 0.937 at the range of 8-14μm, and the radiation increases significantly from 0.383 to 0.737 at the range of 3-5 μm; when the content of NiO was more than 30%, the emissivity of the samples changes slightly.

关 键 词：红外辐射材料 发射率 高温固相反应 

分 类 号：TB32[一般工业技术—材料科学与工程]