点击 最 下方 "在看"和" "并分享，"关注"材料汇 添加 小编微信 ，遇见 志同道合 的你 正文 新需求：隐身空战模式的刚需品，装备渗透率提升空间广阔 21世纪初，以F-22 为代表的隐身战斗机出现，标志着空战进入了隐身时代。 隐身能力是F-22 克敌制胜的重要原因之一，F-22 在与常规战机作战时，依靠隐身性 能可自由选择进入、攻击和脱离作战的时间与方式，而对手基本没有合适的应对战术和有效反击机会。根据2016.6.28 美国《航空周刊》，考虑到外形设计牺 牲了其它性能并且适用范围有限，开发隐身材料逐步成为隐身技术的发展趋势。对于飞行器而言， 发动机后腔体及其内部件和边缘等产生的雷达散射信号、 后腔体及其热端部件和尾喷流等产生的红外辐射信号均为需要隐身屏蔽的特征信号， 因此 通常会采用外形设计叠加多重隐身涂层 。 新市场：现代国防装备刚需，市场前景广阔 前装市场端，以四代机为代表的先进航空装备对于隐身性能等有较高要求， 对特种功能材料如隐身材料、热防护材料等的需求有望随军机放量快速增长；后装 市场端，隐身涂层在装备的使用和贮存过程中会出现脱落、开裂、起层，为了保持武器装备的性能，各国军方需要在全生命周期 ...

Core Viewpoint - The article discusses the development of advanced stealth materials using photonic crystals, highlighting the innovative research and engineering efforts of a team led by Professor Shi Jiaming at the National University of Defense Technology, aimed at enhancing military equipment's stealth capabilities against various detection methods [1][2][3]. Group 1: Research and Development - The need for improved stealth protection for military equipment has become urgent due to advancements in electronic reconnaissance and precision-guided technologies [2]. - The research began with the exploration of photonic crystals, which can manipulate electromagnetic waves by adjusting their optical properties, although they were initially only in the experimental stage [2][3]. - The team successfully developed a theoretical model to block specific frequency electromagnetic waves by designing the periodic structure of photonic crystals [2][3]. Group 2: Engineering and Testing - The team progressed to the engineering phase, creating small samples of photonic crystals and testing their effectiveness on silicon substrates, which showed promising results [4]. - However, challenges arose when transitioning to flexible fabric substrates, leading to extensive trials and adjustments to the manufacturing process [5][6]. - After three years of dedicated efforts, the team overcame significant technical hurdles to enable the large-scale production of flexible photonic crystal films [6][7]. Group 3: Multi-band Detection Solutions - The team faced new challenges in achieving infrared stealth for high-temperature targets while also addressing laser and radar detection, which required different approaches [7]. - A novel concept called "spectral hole drilling" was developed to create specific transmission channels within the photonic crystal structure, allowing for effective stealth across multiple detection bands [7][8]. - Successful tests demonstrated that the stealth materials did not compromise the performance of the radar systems while effectively evading detection [8]. Group 4: Future Directions - The team continues to optimize their processes and technologies, with a focus on rapid innovation and adaptation to enhance combat capabilities [8]. - The emphasis on developing new quality combat power aligns with national directives to leverage advanced technologies for military applications [8].