Fan Zhang, Hongjian Zhang, Shuai Liu, Haitao Cui, Zheyuan Lai
{"title":"Towards detailed oxidation depth and weight loss: A computational and kinetic modeling study of Carbon/Carbon composites oxidation","authors":"Fan Zhang, Hongjian Zhang, Shuai Liu, Haitao Cui, Zheyuan Lai","doi":"10.1016/j.compstruct.2025.119118","DOIUrl":null,"url":null,"abstract":"<div><div>Carbon/Carbon(C/C) composites are increasingly applied in hot-end components of aero-engines due to superior high-temperature mechanical properties. However, C/C composites are susceptible to oxidation under high-temperature conditions, restricting the application of C/C composites. In this research, a three-dimensional diffusion oxidation kinetic model in the diffusion-controlled oxidation stage was established for C/C composites with an anti-oxidation coating based on mass transfer and diffusion theory. Subsequently, the relationship between oxidation amount and crack oxidation propagation depth with oxidation time was calculated. The oxidation damage of C/C composites in the atmosphere at 700 °C ∼900 °C was evaluated by weight loss analysis and scanning electron microscopy (SEM) experimentally. Compared with the oxidation kinetic model, the measured values of oxidation weight loss and oxidation depth were in good agreement with the prediction of the model with the maximal error of 7.55 % and 10.87 % respectively, verifying the reliability of the model. Additionally, the sensitivity of oxidation depth to oxidation duration, oxygen partial pressure (OPP) and coating thickness at different temperature are analyzed, aiming to provide a model to predict the oxidation degree and provide reliable recommendations for thermal protection and antioxidant design of C/C composites.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"363 ","pages":"Article 119118"},"PeriodicalIF":6.3000,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Composite Structures","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0263822325002831","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, COMPOSITES","Score":null,"Total":0}
引用次数: 0
Abstract
Carbon/Carbon(C/C) composites are increasingly applied in hot-end components of aero-engines due to superior high-temperature mechanical properties. However, C/C composites are susceptible to oxidation under high-temperature conditions, restricting the application of C/C composites. In this research, a three-dimensional diffusion oxidation kinetic model in the diffusion-controlled oxidation stage was established for C/C composites with an anti-oxidation coating based on mass transfer and diffusion theory. Subsequently, the relationship between oxidation amount and crack oxidation propagation depth with oxidation time was calculated. The oxidation damage of C/C composites in the atmosphere at 700 °C ∼900 °C was evaluated by weight loss analysis and scanning electron microscopy (SEM) experimentally. Compared with the oxidation kinetic model, the measured values of oxidation weight loss and oxidation depth were in good agreement with the prediction of the model with the maximal error of 7.55 % and 10.87 % respectively, verifying the reliability of the model. Additionally, the sensitivity of oxidation depth to oxidation duration, oxygen partial pressure (OPP) and coating thickness at different temperature are analyzed, aiming to provide a model to predict the oxidation degree and provide reliable recommendations for thermal protection and antioxidant design of C/C composites.
期刊介绍:
The past few decades have seen outstanding advances in the use of composite materials in structural applications. There can be little doubt that, within engineering circles, composites have revolutionised traditional design concepts and made possible an unparalleled range of new and exciting possibilities as viable materials for construction. Composite Structures, an International Journal, disseminates knowledge between users, manufacturers, designers and researchers involved in structures or structural components manufactured using composite materials.
The journal publishes papers which contribute to knowledge in the use of composite materials in engineering structures. Papers deal with design, research and development studies, experimental investigations, theoretical analysis and fabrication techniques relevant to the application of composites in load-bearing components for assemblies, ranging from individual components such as plates and shells to complete composite structures.