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军工材料:为什么隐身材料是真正的“新”材料?(附75页PPT)
材料汇· 2025-07-09 12:34
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 ...
特殊材料红外发射能力远超吸收
news flash· 2025-07-06 23:14
美国宾夕法尼亚州立大学科研团队研发出一种特殊的多层超材料,在强磁场作用下,其红外光发射强度 显著超过吸收强度,为收集太阳能、开发热隐身技术开辟了新路径。相关论文发表于最新一期《物理评 论快报》。 ...
军工材料盘点:国防领域6大前沿新材料和关键技术(13311字)
材料汇· 2025-07-02 15:29
Group 1: Carbon Fiber - Carbon fiber is a crucial material in modern warfare, enhancing the performance of military equipment due to its high strength, low density, and excellent thermal and electrical properties [4][6][10] - The development of carbon fiber began in the 1860s, and it is often referred to as "black gold" due to its high practical value and manufacturing complexity [6][7] - The use of carbon fiber composite materials has significantly improved the performance of advanced military aircraft like the F-35, where it constitutes up to 35% of the aircraft's structure [9][10] Group 2: Metamaterials - Metamaterials are engineered to have properties not found in naturally occurring materials, offering revolutionary applications in military technology, particularly in stealth and radar evasion [14][18] - Recent advancements in metamaterials have led to significant developments in stealth technology, enabling military assets to avoid detection by radar and other sensors [18][19] - The research and application of metamaterials are expected to transform future combat scenarios by enhancing the capabilities of various military platforms [24][25] Group 3: Graphene - Graphene is recognized as the strongest and thinnest known material, with exceptional electrical and thermal conductivity, making it highly valuable in military applications [28][30] - The U.S. and other developed nations are investing heavily in graphene research for its potential use in advanced military technologies, including high-performance sensors and lightweight armor [31][32] - Graphene's unique properties could lead to significant improvements in military computing and sensor technologies, enhancing operational capabilities [30][33] Group 4: Armor Protection Materials - The demand for advanced armor protection materials has increased due to the evolving nature of modern warfare, necessitating improvements in military vehicle protection [36][37] - Various materials, including ballistic glass, steel, ceramics, and high-strength fibers, are utilized in military armor systems to enhance protection against modern threats [38][41] - The development of composite armor systems that integrate multiple materials is becoming a standard practice to achieve optimal protection while minimizing weight [41][42] Group 5: Stealth Coatings - Stealth coatings are critical for reducing the detectability of military assets by controlling their observable characteristics across various detection methods [47][49] - These coatings can be classified into several types, including radar-absorbing, infrared, and visible light stealth coatings, each designed to mitigate specific detection risks [51][52] - The ongoing development of multi-functional stealth materials is essential for enhancing the survivability of military platforms in increasingly complex combat environments [58][63] Group 6: 3D Printing in Defense - 3D printing technology is emerging as a transformative force in the defense sector, enabling rapid prototyping and production of complex military components [66][67] - The U.S. military is integrating 3D printing into its supply chain to improve maintenance and operational efficiency for aircraft and other military equipment [71][74] - This technology allows for the production of parts on-demand, reducing lead times and costs associated with traditional manufacturing methods [67][71]
B-2轰炸机有多烧钱,中国六代机如何破局?
首席商业评论· 2025-06-28 03:40
最强战略轰炸机有多烧钱? B-2轰炸机于1989年首飞,到目前为止仍然是全球最强大的战略轰炸机,从1997年服役开始算,至今已经28年了。B-2轰炸机的造价高昂,以当年的价格计算每架 成本超过21亿美元,按今日价格接近50亿美元。 历时13天的以伊冲突最近告一段落,特朗普虽然说冲突可能还会继续,但还是对伊朗"事先通报"的对美军基地的导弹攻击,评价"非常友好"。而这场冲突的降温转 折点正是美国出动B-2轰炸机结合巨型钻地弹打击伊朗核设施,甚至北约秘书长吕特的玩笑话都让特朗普有种被"跪舔"的得意洋洋。 这次针对伊朗名为"午夜之锤"的军事行动是有记录以来,美军B-2轰炸机首次大规模实战部署。根据公开信息,美国空军一口气共出动13架B-2,其中7架从本土飞 行主攻伊朗,还出动了6架在关岛佯动。 有媒体称,此次行动创下多项纪录:B-2单机往返航程超2.2万公里,动用约三分之二现役B-2机队,号称实现了"声东击西"的战略欺骗。 虽然有报道称B-2轰炸机的实际打击效果有限,但伊朗政府也承认,地下核设施确实受到了打击,6月26日,特朗普在其社交媒体平台上发文表示,伊朗核设施内 没有任何东西被搬走,打击效果非常好,并称之前的打 ...
晨枫:歼-8II亮相巴黎30多年后,中国航空人可以霸气地说“不服来战”
Guan Cha Zhe Wang· 2025-06-21 01:08
Core Viewpoint - The article discusses the participation of China's aviation industry, represented by advanced fighter jets and drones, in the 55th Paris Air Show, highlighting the significance of this event for showcasing China's aerospace advancements and potential export opportunities [1][25]. Group 1: Participation in Paris Air Show - China Aviation Industry Corporation announced its participation in the Paris Air Show from June 16-22, showcasing models such as the J-20, J-35A, J-10CE, Y-20, Z-20, and Z-10ME [1]. - The J-10CE, which gained attention after its performance in the India-Pakistan air conflict, is particularly highlighted as it competes directly with the French Rafale at the air show [1]. Group 2: Historical Context - The first participation of Chinese fighter jets in the Paris Air Show occurred in 1989 with the J-8II, marking a significant moment in showcasing China's aerospace capabilities [3]. - The article draws parallels between the development of the French Rafale and China's J-10, noting the historical context of their respective advancements in military aviation technology [10][12]. Group 3: Technological Advancements - The J-10's design incorporates a canard-delta configuration, which was a strategic choice given China's technological capabilities at the time of its development [11]. - The J-10 has evolved significantly, with the introduction of advanced radar systems and missile technology, such as the PL-15, enhancing its combat capabilities [21][24]. Group 4: Export Potential - The participation in the Paris Air Show is seen as a strategic move to promote potential exports of the J-10CE and other models, indicating a shift in China's approach to international military sales [24][25]. - The article speculates on the future export of the J-20, which could significantly alter geopolitical power dynamics [25].
达索CEO挽尊:“阵风”的成功招人嫉妒,比市场上所有中国飞机都好
Guan Cha Zhe Wang· 2025-06-18 09:22
赶在本届巴黎航展开幕前夕,达索公司CEO埃里克·特拉皮耶(Éric Trappier)接受法国财经杂志《挑 战》(Challenges)采访时,急于给"阵风"挽尊,并对此前一直避而不谈的"阵风"损失问题给出了回 应。 根据《挑战》杂志6月12日发布的专访报道,特拉皮耶在回应印巴空战中"阵风"的损失情况时说,印度 方面尚未就此进行沟通,所以达索不清楚具体发生了什么。 【文/观察者网 刘程辉】 "'阵风'确实是世界上最好的飞机,比F-35更好,也比市场上所有的中国飞机都要好得多……" 被印巴空战砸了招牌,"阵风"制造商达索有些着急上火,不惜打肿脸充胖子。 "至于有没有损失,以及战争目标是否实现,我们拭目以待。当真相大白时,有些人可能会感到惊讶。" 达索公司CEO埃里 克·特拉皮耶 《挑战》杂志 特拉皮耶接着夸口说,在投入使用20年后,"阵风"仍是世界一流水平。 "夸自己绝对是最强的总是很难,但我真诚地认为,综合性能上我们是最好的。" 他说:"显然,如果要与F-22在空战中正面对抗,对'阵风'来说会比较困难。但如果你需要一架能够执行 空战、侦察、对地打击、核任务,并能上舰的战斗机,我认为'阵风'确实是世界上最好的飞 ...
佳驰科技2024年年报点评:军民双翼协同发展 实现EMMS领域自主可控|投研报告
中航证券近日发布佳驰科技(688708)2024年年报点评:军民双翼协同发展,实现 EMMS领域自主可控。 以下为研究报告摘要: 事件:公司4月18日公告,2024年实现营收(9.57亿元,-2.45%),归母净利润(5.17亿 元,-8.23%),,毛利率(76.84%,0.07pcts),净利率(54.06%,-3.4lpcts)。2404实现营 收C3.68亿元、同比+34.98%,环比+66.91%),归母净利润(1.97亿元同比+11.71%,环比 +80.93%).毛利率(76.18%,同比+0.36pcts,环比+0.69pcts),净利率(53.51%,同 比-11.15pcts,环比+4.15pcts) 我国主要的电磁功能材料与结构(EMMS)提供商。公司于2024年12月在科创板上市, 始终专注于装备隐身、电磁兼容等领域的技术研发产品涵盖隐身功能涂层材料、隐身功能结 构件、隐身维护材料、电磁兼容材料,此外,公司新布局的新一代电波暗室总体设计集成及 关键吸波材料产品在低频性能、使用寿命、运维成本方面有显著优势,同时材料阻燃性能优 异。公司产品以军用产品为主,主要应用于航空领域,同时已布局航船 ...