论文部分内容阅读
随着陶瓷材料的发展,波音飞机公司的工程师们用不同的厚度和多层粘合技术,在高速导弹用的宽频带天线罩的结构方面,取得了显著的进步。当导弹飞行速度为3马赫数时,弹头可加热到高于600℃的温度。因此,保护敏感的雷达的罩子——雷达天线罩,必须机械稳定,并能在宽频率范围内让电磁波通过。在美国空军航空实验室委托的研制范围内,波音公司进行了这些工作。波音公司所研制的这种多层陶瓷材料是以氮化硅为基体的,通过对料层厚度和强度仔细调整,使它在高温和
As ceramic materials evolved, Boeing aircraft engineers made significant advances in the construction of wideband radomes for high-speed missiles with different thicknesses and multi-layer bonding technologies. When the missiles fly at 3 Mach, the warhead can be heated to temperatures above 600 ° C. Therefore, the radome, which is the cover of the sensitive radar, must be mechanically stable and allow the passage of electromagnetic waves over a wide frequency range. Boeing carried out these tasks within the scope of the research commissioned by the USAF Aviation Laboratory. The multi-layer ceramic material developed by Boeing is based on silicon nitride, and by carefully adjusting the thickness and strength of the material layer,