Композиты и наноструктуры COMPOSITES and NANOSTRUCTURES Том 7 (Volume 7) ¹ 4 2015 Suresh Kumar1,2*1 1 C/SIC COMPOSITES FOR PROPULSION APPLICATION , Rajesh Chandra2 , Anil Kumar2 , N. Eswara Prasad1 Advanced Systems Laboratory (DRDO) Hyderabad, India -500058 and L.M. Manocha1 Defence Materials &Stores Research and Development (DRDO) Kanpur, India -200804 2 Carbon fiber reinforced silicon carbide (C-SiC) composites are ideal materials for thrust vectoring control of missiles due to their high specific strength, erosion resistance and high temperature capability. <...> The environment experienced by the jet-vanes is very severe with typical gases temperature around 2500K at about 3-4 Mach; the exhaust gases contain hard tiny particles of alumina and results in severe erosion of jetvanes. <...> An indigenized technology based on liquid-silicon-infiltration method is developed for C-SiC composite jetvanes. <...> The jet-vanes have been tested and repeatedly performed successfully in solid propellant rocket motor. <...> КОМПОЗИТЫ УГЛЕВОЛОКО SiC ДЛЯ ПРИМЕНЕНИЯ В ДВИГАТЕЛЯХ Suresh Kumar1,2* 1 , Rajesh Chandra2 , Anil Kumar2 , N. Eswara Prasad1 and L.M. Manocha1 Defence Materials &Stores Research and Development (DRDO) Kanpur, India -200804 2 Advanced Systems Laboratory (DRDO) Hyderabad, India -500058 Композиты с углеволокном в карбид-кремниевой матрице (C-SiC) являются идеальным материалом для снарядов с управляемым вектором тяги благодаря их высокой удельной прочности, сопротивлению эрозии и высокой температуре использования. <...> The environment experienced by the jet-vanes is very severe with typical exhaust gases temperatures around 2500K at about 3 – 4 Mach velocity. <...> German Aerospace Center (DLR) has developed 1 Corresponding author Email: sureshtanwar@rediffmail.com 225 Том 7 (Volume 7) ¹ 4 2015 Композиты и наноструктуры COMPOSITES and NANOSTRUCTURES liquid-silicon-infiltration (LSI) based C-SiC composites using the polymeric resins as carbon source, which is relatively fast [5]. <...> In our laboratory, an indigenized technology based on liquid-silicon-infiltration method is developed for C-SiC composite jet-vanes using coal-tar pitch impregnation followed by silicon infiltration and chemical reaction. <...> In LSI <...>