Preparation and Multiple-band Stealth Properties of Al/Cr2O3 Composite Particles

doi:10.3724/SP.J.1077.2010.01298

Journal of Inorganic Materials ›› 2010, Vol. 25 ›› Issue (12): 1298-1302.DOI: 10.3724/SP.J.1077.2010.01298

• Research Paper • Previous Articles Next Articles

Preparation and Multiple-band Stealth Properties of Al/Cr₂O₃ Composite Particles

CHEN Jiao¹, HUANG Xiao-Gu¹, HAN Peng-De ¹, WANG li-Xi ¹, ZHANG Qi-Tu ^{1, 2}

(1. College of Materials Science and Engineering, Nanjing University of Technology, Nanjing 210009, China; 2. Jiangsu Provincial Key Laboratory of New Materials of Inorganic and its Composites, Nanjing University of Technology, Nanjing 210009, China)

Received:2010-03-23 Revised:2010-05-24 Published:2010-12-20 Online:2010-11-24
Supported by:
National Ministries Funded Projects(JPPT-1251)

Abstract

Abstract: Al/Cr₂O₃ composite particles were prepared by co-precipitation method. Effects of reaction time and calcination temperature on phase composition and morphology were studied by TG-DSC, XRD and SEM. In addition, the infrared emissivity and the reflectivity of Al/Cr₂O₃ powders with different aluminum contents at the wavelength of 1.06 μm were also discussed. The results show that the Al/Cr₂O₃composite particles with 50wt% aluminum is well coated after reacted for 2h and calcined at 400℃.The optimized Al/Cr₂O₃ composite particles exhibit dark green appearance for visible light stealth, low emissivity of 0.66 for infrared stealth and low reflectivity of 0.41% for strong laser absorption at the wavelength of 1.06 μm.

Key words: Al/Cr₂O₃ composite particles, co-precipitation method, compound stealthy properties

CLC Number:

TQ637

CHEN Jiao, HUANG Xiao-Gu, HAN Peng-De, WANG li-Xi, ZHANG Qi-Tu. Preparation and Multiple-band Stealth Properties of Al/Cr₂O₃ Composite Particles[J]. Journal of Inorganic Materials, 2010, 25(12): 1298-1302.

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Preparation and Multiple-band Stealth Properties of Al/Cr₂O₃ Composite Particles

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