{"title":"Cyclic ablation behaviors of mullite-modified C/C–ZrC–SiC composites prepared by PIP","authors":"Yufei Xiong, Qinchuan He, Yiqun Wang, Xuemin Yin","doi":"10.1111/jace.20270","DOIUrl":null,"url":null,"abstract":"<p>Four mullite-modified C/C–ZrC–SiC composites with different contents were prepared by precursor infiltration and pyrolysis (PIP). The phase compositions, microstructures, and cyclic ablation behaviors of the composites under 2.38 MW/m<sup>2</sup> oxyacetylene flame were investigated. Results show that both insufficient and excessive amounts of mullite limit the ablation resistance of the composites. The composite with mullite content of 8.27 wt% has better ablation resistance, and the mass loss rate and linear loss rate after the second ablative are −0.873 mg/s and 0.272 µm/s, respectively. Appropriate mullite improves the viscosity and thermo-oxidative barrier properties of the liquid phase and enhances the healing of ablative defects. Meanwhile, mullite inhibits the crystal transformation of ZrO<sub>2</sub>.</p>","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 3","pages":""},"PeriodicalIF":3.5000,"publicationDate":"2024-11-27","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.20270","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
Four mullite-modified C/C–ZrC–SiC composites with different contents were prepared by precursor infiltration and pyrolysis (PIP). The phase compositions, microstructures, and cyclic ablation behaviors of the composites under 2.38 MW/m2 oxyacetylene flame were investigated. Results show that both insufficient and excessive amounts of mullite limit the ablation resistance of the composites. The composite with mullite content of 8.27 wt% has better ablation resistance, and the mass loss rate and linear loss rate after the second ablative are −0.873 mg/s and 0.272 µm/s, respectively. Appropriate mullite improves the viscosity and thermo-oxidative barrier properties of the liquid phase and enhances the healing of ablative defects. Meanwhile, mullite inhibits the crystal transformation of ZrO2.
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.
Papers on fundamental ceramic and glass science are welcome including those in the following areas:
Enabling materials for grand challenges[...]
Materials design, selection, synthesis and processing methods[...]
Characterization of compositions, structures, defects, and properties along with new methods [...]
Mechanisms, Theory, Modeling, and Simulation[...]
JACerS accepts submissions of full-length Articles reporting original research, in-depth Feature Articles, Reviews of the state-of-the-art with compelling analysis, and Rapid Communications which are short papers with sufficient novelty or impact to justify swift publication.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
