Ablation Behavior of a Carbon Fabric Reinforced Phenolic Composite Modified by Surface-Decorated ZrB2/SiC

Abstract

Carbon fabric reinforced phenolic composites were widely used as TPSs (thermal protection system) material in the aerospace industry. However, their limited oxidative ablation resistance restricted their further utility in more serious service conditions. In this study, the surface-decorated ZrB2/SiC and its modified carbon fabric reinforced phenolic composites have been successfully prepared. The self-modification mechanism of the surface-decorated ZrB2/SiC particles were characterized. The mechanical performance and ablation behavior of the composites were investigated. Results showed that the ZrB2/SiC particles possessed a good surface-decorated effect, which achieved good compatibility with the phenolic resin. The mechanical performance of the modified phenolic composite was effectively improved. The anti-oxidative ablation performance of the composite was improved. The mass ablation rate of the surface-decorated ZrB2–SiC-modified carbon fabric reinforced phenolic composites was 25% lower than that of the unmodified composites. The formed ZrO2 ceramic layer attached to the surface of the residual chars prevented the heat energy and oxygen from the inner material. Meanwhile, the volatilization of SiO2 and B2O3 effectively increased the heat dissipation. All these results confirmed that the ZrB2–SiC particles can effectively improve the ablation resistance of the composite, which provided a basis for the application of the composites to more serious service environments.

High Temperature Composites From Renewable Resources: A Perspective on Current Technological Challenges for the Manufacturing of Non-Oil Based High Char Yield Matrices and Carbon Fibers

“…Other nanoscaled fillers, such as carbon nanotubes, silica, ZrB 2 , ZrSi 2 ,TiB 2 (Figure 8D) have been also studied (Ding et al, 2019): as a representative result, TiB 2 particles included in carbon-phenolic (T/C-Ph) composites prepared by compression moulding reacted, at high temperature, with oxygen-containing molecules, by coating the residue of phenolic after pyrolysis with glassy B 2 O 3 , assuring in this way improved mechanical performance at high temperature. Nano-modified carbon fabric represents another opportunity to enhance the ablation behavior of these materials (Xu et al, 2020a;Xu et al, 2020b).…”

Enhancing ablation and oxidation resistance of phenolic resin with modified pickling asbestos

“…[4][5][6][7][8] The ceramic fillers can form dense ceramic phases at high temperatures and protect the internal material from the erosion of heat flow. [9][10][11][12] Various ceramic particles such as SiC, 13 SiO 2, 14 ZrSi 2, 15 and ZrB 2 16 have been introduced…”

“…The ceramic fillers can form dense ceramic phases at high temperatures and protect the internal material from the erosion of heat flow 9–12 . Various ceramic particles such as SiC, 13 SiO 2, 14 ZrSi 2, 15 and ZrB 2 16 have been introduced into BPR, and ideal ablation performance has been achieved 17–22 . Mirzapour et al 23 introduced ZrO 2 particles to improve the thermal stability and ablation properties of phenolic composites.…”

Enhanced Thermal Resistance of Boron Phenolic Composites by Addition of TiSi2 Particles

“…It is an immense challenge for thermal protection systems (TPS) to maintain its thermal protection function [1][2][3] . The heat-shield material is a key factor in the design of TPS for planetary probes and space vehicles [4][5][6] . Boron phenolic resin(BPR) has high carbon residual ratio and it's widely used as the matrix of TPS materials [7][8][9][10] .…”