Effect of Carbon Black Nano Particles on Mechanical and Ablative Properties of Carbon Fiber/Phenolic Resin Composites
Year: 2025
Type: article
Abstract: Ablative nano composites were prepared by incorporating varying weight percentages of Carbon Black Nano particles (CBNP) into phenolic resin, then impregnated into rayon based carbon fabric material. CBNP was blended into the phenolic resin at loadings of 0 %, 2 %, 4 %, 6 %, and 8 % by weight using an electrical stirrer to ensure uniform dispersion of the nano particles. The laminates were fabricated using hand layup process and autoclave curing. Physical, mechanical, and ablative tests were conducted on the samples in accordance with current ASTM standards. The ablative tests were performed using an oxyacetylene test bed (OTB) in which the laminates were exposed to a flame of heat flux about 500 W/cm² for a duration of 60 sec. SEM results were analyzed on the burnt surfaces to understand the influence of CBNP nano fillers on ablation properties of all types of composites. It was observed that the composite specimen containing 4 % CBNP exhibited better ablation properties (reduced erosion rate, mass loss and back wall temperatures by 28 %, 9 % and 16 % respectively) when compared to control samples. This improvement can be attributed to the optimal interface formed between the fiber and resin at 4 wt % CBNP.
Source: Defence Science Journal
DOI: 10.14429/dsj.21237
Language: English
Subfield: General Materials Science
Field: Materials Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W7123713025