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激光对鳞片石墨改性酚醛树脂涂层的损伤机理

马琛 马壮 高丽红 王富耻

马琛, 马壮, 高丽红, 王富耻. 激光对鳞片石墨改性酚醛树脂涂层的损伤机理[J]. 中国光学(中英文), 2017, 10(2): 249-255. doi: 10.3788/CO.20171002.0249
引用本文: 马琛, 马壮, 高丽红, 王富耻. 激光对鳞片石墨改性酚醛树脂涂层的损伤机理[J]. 中国光学(中英文), 2017, 10(2): 249-255. doi: 10.3788/CO.20171002.0249
MA Chen, MA Zhuang, GAO Li-hong, WANG Fu-chi. Laser damage mechanism of flake graphite modified phenolic resin coating[J]. Chinese Optics, 2017, 10(2): 249-255. doi: 10.3788/CO.20171002.0249
Citation: MA Chen, MA Zhuang, GAO Li-hong, WANG Fu-chi. Laser damage mechanism of flake graphite modified phenolic resin coating[J]. Chinese Optics, 2017, 10(2): 249-255. doi: 10.3788/CO.20171002.0249

激光对鳞片石墨改性酚醛树脂涂层的损伤机理

doi: 10.3788/CO.20171002.0249
基金项目: 

国家自然科学基金资助项目 51302013

详细信息
    作者简介:

    马琛 (1992-), 男, 江苏徐州人, 博士研究生, 2014年于合肥工业大学获得学士学位, 主要从事激光对物质作用机理方面的研究。E-mail:794420860@qq.com

    通讯作者:

    马壮 (1974-), 男, 河北昌黎人, 博士, 教授, 博士生导师, 1996年、2001年于北京理工大学分别获得学士、博士学位, 主要从事高温高能防护涂层材料和金属/陶瓷复合材料方面的研究。E-mail:hstrong929@bit.edu.cn

  • 中图分类号: TP394.1;TH691.9

Laser damage mechanism of flake graphite modified phenolic resin coating

Funds: 

National Natural Science Foundation of China 51302013

  • 摘要: 为了分析高能激光对鳞片石墨改性酚醛树脂涂层的损伤机理,本文采用激光辐照方法研究激光对该涂层的损伤过程。首先,制备出纯酚醛树脂涂层和鳞片石墨改性酚醛树脂涂层,使用不同的激光参数进行激光辐照实验,根据损伤区域形貌和损伤面积分析鳞片石墨的对涂层的改性作用,分析损伤区域微观形貌和内部残炭的石墨化程度,通过对损伤中心进行三维成像来分析烧蚀凹坑的尺寸与烧蚀深度。最后,根据不同颜基比涂层在激光辐照过程中损伤区域的面积和显微形貌,分析了颜基比对激光损伤涂层过程的影响。分析结果表明:酚醛树脂经激光辐照后会裂解生成石墨化程度不同的残炭,经鳞片石墨添加改性后,损伤区域的面积相比于纯酚醛树脂涂层最大可增加35 mm2。由此可知鳞片石墨的添加改性增强了涂层的横向散热能力,但过高的颜基比会使具有粘附作用的残炭生成量减少,进而导致鳞片石墨脱落明显,涂层损伤严重。

     

  • 图 1  激光辐照实验平台

    Figure 1.  Experiment platform of laser irradiation

    图 2  损伤区域表面形貌

    Figure 2.  Surface morphologies of the damage area

    图 3  损伤区域表面形貌及其三维显微图像

    Figure 3.  Surface morphologies and three-dimensional micro shape of the damage area

    图 4  损伤区表面形貌和残炭的显微激光拉曼光谱

    Figure 4.  Surface morphologies of damage area and micro-confocal laser Raman spectrum of the residual char

    图 5  损伤区域SEM形貌

    Figure 5.  SEM morphologies of the damage area

    图 6  不同颜基比涂层的损伤区域SEM形貌

    Figure 6.  SEM morphologies of the coatings with different binder ratios

    表  1  不同颜基比涂层损伤面积对比

    Table  1.   Area comparison of damage areas with different binder ratios

    功率密度/(W·cm-1) 辐照时间/s 酚醛树脂涂层损伤面积/mm2 颜基比1:2涂层损伤面积/mm2 颜基比4:5涂层损伤面积/mm2
    500 10 225 256 256
    1 000 10 256 289 289
    1 500 10 289 324 324
    下载: 导出CSV
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出版历程
  • 收稿日期:  2016-10-24
  • 修回日期:  2016-12-02
  • 刊出日期:  2017-04-01

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