Archieveing of stealthing property with modification of electrical, magnetic and microwave properties of textile materials by using sol-gel technique

Radar absorbing materials (RAM) constitute the part of stealthing defence systems for land, air and sea forces in military. While plane, rocket, helicopter, ship and tank as well soldier are illuminated with radar, target is established by radar cross section knowledge. It is important that stealthing techniques, which required for reducing radar cross section, are improved. Thus it is obtained that the target is hardly determined. Electromagnetic energy could be partly transformed to heat energy by lossy materials obtained with stealthing technologies. The absorbing effect of such materials is very important. Thus, in the thesis project, cotton fabric was coated with absorbing and lossy materials prepared using sol-gel processing and chemical oxidative polymerization. Hence, we aimed to produce the radar absorbing textile material which has the properties of light weight, flexible, easy handling. It may be achieved the stealthing technologies while the target was covered with coating textiles.The thermal, structural, morphological and magnetic properties of magnetic powders by sol-gel process using DTA-TG, XRD, SEM and VSM was determined. The structural, morphological, magnetic, electrical, dielectric and electromagnetic analysis of the coated fabrics using XRD, SEM, FTIR, VSM, multimeter, dielectric analyzer and coaxial line with network analyzer was carried out. Moreover washing durability, coloru fastness and tensile strength of the coated textiles was tested.