锆合金涂层包壳专利申请态势全景分析

Analysis on Patents Application Situation of Coated Zirconium Alloy Cladding

事故容错燃料(ATF)是日本福岛核事故之后提出的新一代核燃料概念,主要是为了提高反应堆在事故工况下的容错性能,从根本上提高核电厂对严重事故的抵御能力,从而有效地提高核电的安全性和经济性。针对传统核燃料使用的锆合金包壳,通过外表面涂层改性的方法提高其在事故工况下的抗高温氧化性能是事故容错燃料的主要研究方向。为了对锆合金涂层包壳的技术发展现状和趋势进行全面了解,对该技术相关的国际及国内专利申请态势进行了统计分析,研究了该领域的专利申请发展态势、专利来源地区及布局地区特点,重点分析了自20世纪60年代以来锆合金涂层包壳技术分支发展趋势;此外,结合我国的锆合金涂层包壳的研究现状,从研究进展及技术聚焦等方面提出锆合金涂层包壳研发建议。

Accident tolerant fuel(ATF)is an advanced nuclear fuel concept proposed after the Fukushima nuclear accident in Japan which is mainly to improve the accident tolerance performance of reactors under accident conditions and fundamentally improve the ability of nuclear power plants to resist serious accidents,so as to effectively improve the safety and economy of nuclear power.For zirconium alloy cladding materials,improving the high temperature oxidation resistance by coating is the main direction under concept of accident tolerant fuel.In order to fully understand the technical development status and trend of zirconium alloy cladding,the international and domestic patent applications are statistically analyzed.In addition,the development trend of coated zirconium alloy cladding technology branch since 1960s is analyzed.In addition,according to the research and development status of zirconium alloy coating cladding in China,the suggestions on the research and development of zirconium alloy coating cladding are put forward from the aspects of research and development progress and technology focus.