无机材料学报 ›› 2010, Vol. 25 ›› Issue (12): 1298-1302.DOI: 10.3724/SP.J.1077.2010.01298

• 研究论文 • 上一篇    下一篇

Al/Cr2O3复合粒子的制备及其多波段兼容隐身性能的研究

陈 娇1, 黄啸谷1, 韩朋德1, 王丽熙1, 张其土1,2   

  1. (南京工业大学 1. 材料科学与工程学院; 2. 江苏省无机及其复合新材料重点实验室, 南京 210009)
  • 收稿日期:2010-03-23 修回日期:2010-05-24 出版日期:2010-12-20 网络出版日期:2010-11-24
  • 基金资助:

    国家部委科技资助项目(JPPT-1251)

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

CHEN Jiao 1, HUANG Xiao-Gu 1, HAN Peng-De 1, WANG li-Xi 1, ZHANG Qi-Tu 1, 2   

  1. (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)

摘要: 采用共沉淀法将Cr2O3包覆于片状金属铝粉表面制得Al/Cr2O3复合粒子. 借助于TG-DSC、XRD、SEM等测试手段系统研究了反应时间和煅烧温度分别对复合粒子的物相组成、包覆前后形貌的影响. 此外, 探讨了不同铝粉添加量下Al/Cr2O3粉末的红外辐射率和1.06 μm波长处的反射率性能. 结果表明: 当反应时间为2h、煅烧温度为400℃、铝粉添加量为50wt%时制得的Al/Cr2O3复合粒子包覆较为完整, 其外观呈墨绿色, 红外辐射率值为0.66, 1.06 μm波长处的反射率为0.41%, 具有良好的红外-激光-可见光兼容隐身性能.

关键词: Al/Cr2O3复合粒子, 共沉淀法, 复合隐身性能

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/Cr2O3 composite 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

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