{"title":"Improved ablation resistance of Csf/SiBCN composites densified by PIP process: Ablation behavior and damage mechanism","authors":"Wenhao Dou, Bingzhu Wang, Daxin Li, Haobo Jiang, Xiaoliang Sun, Ling Li, Yingying Wang, Zhihua Yang, Dechang Jia, Yu Zhou","doi":"10.1111/jace.20335","DOIUrl":null,"url":null,"abstract":"<p>To enhance the ablation resistance of porous C<sub>sf</sub>/MA–SiBCN composites, the polymer infiltration and pyrolysis (PIP) process is adopted to obtain layered C<sub>sf</sub>/SiBCN composites containing MA–SiBCN and PDCs–SiBCN. After ablation for 10 s, the ablative layer fails to remain on the C<sub>sf</sub>/MA–SiBCN surface with mass ablation rate of 0.062 g/s and linear ablation rate of 0.208 mm/s, while the dense C<sub>sf</sub>/SiBCN surface is covered by a dense and stable ablative layer mainly consisting of amorphous SiO<sub>2</sub> glassy phase due to the synergistic ablation effect of MA–SiBCN and PDCs–SiBCN, which could resist the intense scour by ablation flame and prevent internal corrosion, and thus the ablation resistance improves with a 37% decrease in mass ablation rate (0.039 g/s) and an 18% decrease in linear ablation rate (0.171 mm/s), respectively.</p>","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 4","pages":""},"PeriodicalIF":3.5000,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the American Ceramic Society","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/jace.20335","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
引用次数: 0
Abstract
To enhance the ablation resistance of porous Csf/MA–SiBCN composites, the polymer infiltration and pyrolysis (PIP) process is adopted to obtain layered Csf/SiBCN composites containing MA–SiBCN and PDCs–SiBCN. After ablation for 10 s, the ablative layer fails to remain on the Csf/MA–SiBCN surface with mass ablation rate of 0.062 g/s and linear ablation rate of 0.208 mm/s, while the dense Csf/SiBCN surface is covered by a dense and stable ablative layer mainly consisting of amorphous SiO2 glassy phase due to the synergistic ablation effect of MA–SiBCN and PDCs–SiBCN, which could resist the intense scour by ablation flame and prevent internal corrosion, and thus the ablation resistance improves with a 37% decrease in mass ablation rate (0.039 g/s) and an 18% decrease in linear ablation rate (0.171 mm/s), respectively.
期刊介绍：
The Journal of the American Ceramic Society contains records of original research that provide insight into or describe the science of ceramic and glass materials and composites based on ceramics and glasses. These papers include reports on discovery, characterization, and analysis of new inorganic, non-metallic materials; synthesis methods; phase relationships; processing approaches; microstructure-property relationships; and functionalities. Of great interest are works that support understanding founded on fundamental principles using experimental, theoretical, or computational methods or combinations of those approaches. All the published papers must be of enduring value and relevant to the science of ceramics and glasses or composites based on those materials.
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