Chem. J. Chinese Universities ›› 2011, Vol. 32 ›› Issue (11): 2498.

• Articles • Previous Articles     Next Articles

Infrared Emission Enhancement and Wavelength Widen of Composite Oxide Powders

ZHANG Kong1,2, LIU Qing-Feng1, LIU Qian1*   

  1. 1. State Key Labcratory of High Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China;
    2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2010-11-10 Revised:2011-07-01 Online:2011-11-10 Published:2011-10-14
  • Contact: LIU Qian E-mail:qianliu@sunm.shcnc.ac.cn
  • Supported by:

    中国科学院上海硅酸盐研究所创新项目基金(批准号: SCX0620)资助.

Abstract: A new kind of nanoscaled composite oxide powders was prepared by a sol-gel combustion method to study the effect of doping on the infrared radiation. When calcined at 1100~1200 ℃, anatase, zircon and cordierite phases were crystallized in the resultant composite powders, proved from XRD patterns. The microstructural features and infrared emission performance were observed and measured by TEM and IR spectrometer. The infrared emission performance of the powder-packed disk samples showed a higher emissivity in a wide infrared range of 1~22 μm. The infrared emission peak appeared at about 10 μm with a maximal value of 98%. With the doping of Ni2+ and Fe2+, the infrared emission intensity increased obviously, due to the enhancement of anharmonic interaction, causing lattice deformation of the substituted cordierite structure.

Key words: Composite oxide powder, Sol-gel, Doping, Infrared radiation, Lattice deformation

CLC Number: 

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