@article{Robayo-Salazar_Portocarrero-Hermann_Díaz-Padrón_Patiño-Castrillón_2020, title={Polymeric Ablative Composite Materials and their Application in the Manufacture of Aerospace Propulsion Components}, volume={29}, url={https://revistas.uptc.edu.co/index.php/ingenieria/article/view/10662}, DOI={10.19053/01211129.v29.n54.2020.10662}, abstractNote={<p>The development of thermal protection systems and high-temperature composite materials for the manufacture of low-weight propulsion components represents a major challenge for the aerospace industry, especially in the field of rocketry. The rocket combustion chamber and nozzles must be designed to withstand operating temperatures above 1600-2000 ° C in a severe ablative environment. This research focuses on obtaining a characterization of ablative composite materials based on a polyester resin matrix (30%) reinforced with particulate materials (fillers) (67%) and short glass fibers (3%), highlighting that the fillers correspond to industrial waste or by-products such as steel slag, aluminum slag, foundry slag and ceramic waste. The composites were physically and mechanically characterized and subjected to an ablative direct flame test (~1600-2000 °C, 120 seconds), reporting thermal insulation levels between 72.6-92.9%, with maximum temperatures on the opposite side of the flame between 141.6-548.8 ° C, and post-ablative weight losses of between 8.5-13.2%. Based on the obtained results, the optimal composites were selected and their application was validated in the manufacture of rocket-type nozzle propulsion components, which were subjected to a real static combustion test, using a solid propellant Candy KNSu type (65 % KNO<sub>3</sub>-35% Sucrose). The results proved the possibility of obtaining ablative composites and thermal protection systems from available materials and high contents of industrial by-products. These applications are considered important to develop the Colombian aerospace field in the construction of sounding rockets for scientific, technological, and military purposes.</p>}, number={54}, journal={Revista Facultad de Ingeniería}, author={Robayo-Salazar, Rafael and Portocarrero-Hermann, Julián and Díaz-Padrón, Ubaldo and Patiño-Castrillón, Oscar}, year={2020}, month={May}, pages={e10662} }