Development and Characterization of High-temperature and Laser Ablation Resistant Coating
Development and Characterization of High-temperature and Laser Ablation Resistant Coating
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发表时间：
2014
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通讯作者：
Li Jin
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作者：
Li Jin
以有机硅树脂、聚碳硅烷为粘结剂，以Al 2o3、BN、SiC、ZrO 2、sio2、CF为填料制备了抗烧蚀涂层。对涂层的物理力学性能进行了表征。结果表明，玻璃粉和氮化硼对减少涂层裂纹起关键作用，zro2对提高涂层的耐热和抗烧蚀性能起关键作用。涂层为600μm的1mm 30CrMnSiA钢基体在3000℃氧乙炔火焰中烧蚀4秒后不会穿孔。当功率密度为531 W / cm2的激光照射5s时，衬底温度可降低1000℃以上，涂层的保护层为900μm。
The ablation resistant coating was prepared by using organic silicon resin,polyethylene carbon silane as binder and Al 2 O 3, BN,SiC,ZrO 2,SiO 2,CF as filler. The physical and mechanical properties of the coating were characterized. The results show that the glass powder and BN play a key role to reduce cracks in the coating,as well as ZrO 2 is crucial to improve the heat and ablation resistant capabilities of the coating. The 1mm 30CrMnSiA steel substrate with 600μm coating would not be perforated by the ablation for 4 seconds from 3000℃ oxygen acetylene flame. When radiated from laser with power density of 531 W / cm2for 4s,the temperature of substrate can decrease more than 1000℃ with the protection of 900μm coating.