{"title":"Residual mechanical properties of bio-inspired carbon-based composites with multilayer toughened shell-pearl structure","authors":"Ruicong Chen , Jian Zhang , Jiaqi Hou , Yulei Zhang","doi":"10.1016/j.compositesa.2025.108977","DOIUrl":null,"url":null,"abstract":"<div><div>Shells are natural composites with outstanding mechanical properties, achieved through a combination of calcium carbonate flakes and organic layers arrangements. Here, inspired by the layered structure of shell pearl, we report a C<sub>f</sub>/(PyC/SiC)<sub>n</sub> composites with high residual strength and good anti-ablation properties prepared via one-step chemical vapor infiltration method. The layered biomimetic structure increased the sliding resistance induced by the clamping stress to promote cracks deflection at multi-layer interface, where multiple crack initiation at a PyC weak layer followed by crack deflection in a SiC tough layer. The flexural strength of as-prepared C<sub>f</sub>/(PyC/SiC)<sub>5</sub> composite was significantly improved about 55.7 % in comparation to C<sub>f</sub>/PyC/SiC composite. After ablation, the flexural strength of C<sub>f</sub>/(PyC/SiC)<sub>5</sub> composite degraded by only 11.2 %, while that of C<sub>f</sub>/PyC/SiC composite reduced about 32.4 %. This work is expected to provide insights for the preparation of high-performance carbon-based composites, with promising applications as thermal protection materials in aerodynamic heating environments.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"196 ","pages":"Article 108977"},"PeriodicalIF":8.1000,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Composites Part A: Applied Science and Manufacturing","FirstCategoryId":"1","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1359835X25002714","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MANUFACTURING","Score":null,"Total":0}
引用次数: 0
Abstract
Shells are natural composites with outstanding mechanical properties, achieved through a combination of calcium carbonate flakes and organic layers arrangements. Here, inspired by the layered structure of shell pearl, we report a Cf/(PyC/SiC)n composites with high residual strength and good anti-ablation properties prepared via one-step chemical vapor infiltration method. The layered biomimetic structure increased the sliding resistance induced by the clamping stress to promote cracks deflection at multi-layer interface, where multiple crack initiation at a PyC weak layer followed by crack deflection in a SiC tough layer. The flexural strength of as-prepared Cf/(PyC/SiC)5 composite was significantly improved about 55.7 % in comparation to Cf/PyC/SiC composite. After ablation, the flexural strength of Cf/(PyC/SiC)5 composite degraded by only 11.2 %, while that of Cf/PyC/SiC composite reduced about 32.4 %. This work is expected to provide insights for the preparation of high-performance carbon-based composites, with promising applications as thermal protection materials in aerodynamic heating environments.
期刊介绍:
Composites Part A: Applied Science and Manufacturing is a comprehensive journal that publishes original research papers, review articles, case studies, short communications, and letters covering various aspects of composite materials science and technology. This includes fibrous and particulate reinforcements in polymeric, metallic, and ceramic matrices, as well as 'natural' composites like wood and biological materials. The journal addresses topics such as properties, design, and manufacture of reinforcing fibers and particles, novel architectures and concepts, multifunctional composites, advancements in fabrication and processing, manufacturing science, process modeling, experimental mechanics, microstructural characterization, interfaces, prediction and measurement of mechanical, physical, and chemical behavior, and performance in service. Additionally, articles on economic and commercial aspects, design, and case studies are welcomed. All submissions undergo rigorous peer review to ensure they contribute significantly and innovatively, maintaining high standards for content and presentation. The editorial team aims to expedite the review process for prompt publication.