A Study of Laser Ablated Polytetrafluoroethylene (PTFE) Composites Filled with CaF_2


          

刊名：Lasers in Engineering
作者：G. LI（Shanghai Key Laboratory of Materials Laser Processing and Modification, Shanghai Jiao Tong University）
Y. LIU（Schneider Electric (China) Company Ltd.）
J. HUANG（Shanghai Key Laboratory of Materials Laser Processing and Modification, Shanghai Jiao Tong University）
D. PICCOZ（Schneider Electric SA）
X. W. ZHU（Shanghai Key Laboratory of Materials Laser Processing and Modification, Shanghai Jiao Tong University）
Y. X. WU（Shanghai Key Laboratory of Materials Laser Processing and Modification, Shanghai Jiao Tong University）
刊号：537B0017
ISSN：0898-1507
出版年：2014
年卷期：2014, vol.27, no.5/6
页码：267-276
总页数：10
分类号：TN24
关键词：CO_2 laser；Laser ablation；Polytetrafluoroethylene (PTFE)；Composite；CaF_2；Resistance
参考中译：
语种：eng
文摘：The polytetrafluoroethylene (PTFE) composites filled with CaF_2 gas are ablated by laser beam instead of arc and the microstructure and the contents of the main elements on the ablated surfaces of PTFE composites are analysed through scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The mechanism of the resistance to laser ablation influenced by CaF_2 is studied. The results indicate that it exists an optimum content of CaF_2 at which PTFE acquires a relatively high resistance to laser radiation; the optimum content of CaF_2 could improve the reflectivity, regulate absorption of laser energy and improve PTFE composites resistance to laser ablation.



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