EFFECT OFZrO2POWDERS ON THE PYROLYSIS OF POLYCARBOSILANES COATING UNDER LASER ABLATION

Han Cheng, Zhaofeng Chen (), Jie Tao, Bo Yan, Cong Li, Liangbing Wang, Ying Zhang, Dan Fang, Shuicheng Wan and Wangping Wu
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Han Cheng: College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China
Zhaofeng Chen: College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China
Jie Tao: College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China
Bo Yan: College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China
Cong Li: College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China
Liangbing Wang: College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China
Ying Zhang: College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China
Dan Fang: College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China
Shuicheng Wan: College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China
Wangping Wu: College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China

Surface Review and Letters (SRL), 2008, vol. 15, issue 04, 469-472

Abstract: Aircrafts hold the outstanding mastery of the sky in modern wars, however the laser beam weapons can carry out laser attacking to aircrafts. The purpose of the present paper is to research on a new type laser protective material. Polycarbosilanes (PCS)/divinylbenzene mixtures containingZrO2powders were brushed to the surface of the aluminum alloy plates and then cured at 150°C for 6 h. The PCS-coated plates were ablated by laser for 3 s. The phase identification of as-ablated powders was examined by X-ray diffraction. The results indicated that the as-ablated powders of cured PCS were composed of major phase β-SiCand smaller amounts of free carbon. The PCS composite coating played a certain role of laser ablation resistance. The effect of addedZrO2powders on the pyrolysis of PCS-coating under laser ablation is conspicuous.

Keywords: ZrO2powders; pyrolysis; polycarbosilanes coating; laser ablation (search for similar items in EconPapers)
Date: 2008
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DOI: 10.1142/S0218625X08011603

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