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Microstructural interpretation of the ablative properties of phenolic–quartz hybrid fabric reinforced phenolic resin composites
Graphical abstract Display Omitted
Highlights Phenolic–quartz hybrid fabric reinforced composites were manufactured. During ablation, the phenolic fiber reacted with the phenolic resin. During ablation, the hybrid composites gave a vis-à-vis char structure. The resistance of the hybrid composites to erosion was improved.
Abstract The thermal decomposition behavior of phenolic fiber and phenolic resin (PR) matrix was investigated by using a thermo gravimetric analyzer in nitrogen. The ablative properties of the composite specimens were quantitatively evaluated by performing oxyacetylene flame test and exhaust plume ablative test with a small liquid motor. The ablative properties of phenolic–quartz hybrid fabric reinforced phenolic resin (P–Q/PR) composites were compared with those of phenolic fabric and quartz fabric reinforced (P/PR and Q/PR) composites. The patterns and microstructures of the ablated composite specimens were also studied, and the advantages of the hybrid reinforced composites under ablation conditions were interpreted. The phenolic fiber decomposed similarly to the manner in which the PR did. The mixture rule can be used to predict the mass loss rate of the P–Q/PR composites during the oxyacetylene flame test. After the oxyacetylene flame test, there was no crack or delamination can be observed in P–Q/PR composite specimens and the carbonaceous residue blocks which were produced by the phenolic fiber and the PR were attached well to the quartz fibers. The resistance to heat-flow erosion of the P–Q/PR composites had significantly improved and the mass loss of the P–Q/PR composites (24.6%) was much lower than those of the Q/PR composites (56.4%) and the P/PR composites (86.3%) in the exhaust plume ablative test with a small liquid motor. A vis-à-vis char layer of the P–Q/PR composites formed during this ablation.
Microstructural interpretation of the ablative properties of phenolic–quartz hybrid fabric reinforced phenolic resin composites
Graphical abstract Display Omitted
Highlights Phenolic–quartz hybrid fabric reinforced composites were manufactured. During ablation, the phenolic fiber reacted with the phenolic resin. During ablation, the hybrid composites gave a vis-à-vis char structure. The resistance of the hybrid composites to erosion was improved.
Abstract The thermal decomposition behavior of phenolic fiber and phenolic resin (PR) matrix was investigated by using a thermo gravimetric analyzer in nitrogen. The ablative properties of the composite specimens were quantitatively evaluated by performing oxyacetylene flame test and exhaust plume ablative test with a small liquid motor. The ablative properties of phenolic–quartz hybrid fabric reinforced phenolic resin (P–Q/PR) composites were compared with those of phenolic fabric and quartz fabric reinforced (P/PR and Q/PR) composites. The patterns and microstructures of the ablated composite specimens were also studied, and the advantages of the hybrid reinforced composites under ablation conditions were interpreted. The phenolic fiber decomposed similarly to the manner in which the PR did. The mixture rule can be used to predict the mass loss rate of the P–Q/PR composites during the oxyacetylene flame test. After the oxyacetylene flame test, there was no crack or delamination can be observed in P–Q/PR composite specimens and the carbonaceous residue blocks which were produced by the phenolic fiber and the PR were attached well to the quartz fibers. The resistance to heat-flow erosion of the P–Q/PR composites had significantly improved and the mass loss of the P–Q/PR composites (24.6%) was much lower than those of the Q/PR composites (56.4%) and the P/PR composites (86.3%) in the exhaust plume ablative test with a small liquid motor. A vis-à-vis char layer of the P–Q/PR composites formed during this ablation.
Microstructural interpretation of the ablative properties of phenolic–quartz hybrid fabric reinforced phenolic resin composites
Bian, Liping (author) / Xiao, Jiayu (author) / Zeng, Jingcheng (author) / Xing, Suli (author) / Yin, Changping (author)
2014-05-25
6 pages
Article (Journal)
Electronic Resource
English
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