热障涂层是一种金属陶瓷复合涂层系统，常用于燃气轮机热端部件表面，以降低基底温度，保护燃气轮机在高温下长期工作。本文对燃气轮机热障涂层制备技术、涂层材料技术、结构设计技术相关的专利进行分析，研究了热障涂层技术相关专利的申请趋势、重点申请国、重点申请人、技术发展路线以及未来的发展趋势等。研究结果表明，我国在电子束-物理气相沉积制备技术、热障涂层梯度结构设计等方面与国外存在较大差距，国内需要在相应技术方面加强研发及专利布局。
Thermal-barrier coatings (TBCs) are metal-ceramic composite coatings applied to the surfaces of the hottest parts of gas turbine, protecting gas turbine from long-term operation at high temperatures. The patents relate to the thermal barrier coatings preparation, materials and structural design of gas turbine TBCs are analyzed in this article. The patents are studied in specified in patent application trend, patent apply countries, patent applicant, technology roadmap. The results showed that there is a large gap between China and abroad in aspect of EB-PVD、graded coating designing, action should be taken to reinforce the technolog and patent layout strategy.
2020,42(1): 186-189 收稿日期：2019-11-12
DOI：10.3404/j.issn.1672-7649.2020.01.038
分类号：U668.3
作者简介：谢晓阳(1976-),男,博士,高级工程师,从事知识产权工作
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