{"title":"Strong hybrid cellular/lamellar ceramic/polymer composites via emulsification freeze casting","authors":"Guanjin Li, Yushu Li, Likai Yang, Lingyi Hong, Xinyu Dong, Vincent Beng Chye Tan, Wei Zhai","doi":"10.1111/jace.20164","DOIUrl":null,"url":null,"abstract":"<p>Despite their unremarkable constituents, natural materials, with their hybrid hierarchical structure, possess exceptional mechanical properties. The hybrid hierarchical structure typically comprises two or more distinct phases such as lamellar, gradient, tubular, and cellular form. An oil-in-water emulsion freeze casting method is devised to create composite materials with a bio-inspired hybrid cellular/lamellar structure. The impact of two types of binders on the microstructure, namely, polyvinyl alcohol and F127, and their correlation with the mechanical properties of the composites were investigated. Samples fabricated with a 5 wt.% F127 emulsification slurry exhibited an “H”-shaped cellular/lamellar structure and achieved compressive strength and specific energy absorption of about 360 MPa and 37 kJ/kg, which are noteworthy considering their ceramic and epoxy composition. Finite element analyses were then conducted to reveal how mechanical load distribution between the different phases of the composites and the influence of microstructure on fracture paths can lead to enhancement in mechanical properties.</p>","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 2","pages":""},"PeriodicalIF":3.5000,"publicationDate":"2024-10-03","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.20164","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
Despite their unremarkable constituents, natural materials, with their hybrid hierarchical structure, possess exceptional mechanical properties. The hybrid hierarchical structure typically comprises two or more distinct phases such as lamellar, gradient, tubular, and cellular form. An oil-in-water emulsion freeze casting method is devised to create composite materials with a bio-inspired hybrid cellular/lamellar structure. The impact of two types of binders on the microstructure, namely, polyvinyl alcohol and F127, and their correlation with the mechanical properties of the composites were investigated. Samples fabricated with a 5 wt.% F127 emulsification slurry exhibited an “H”-shaped cellular/lamellar structure and achieved compressive strength and specific energy absorption of about 360 MPa and 37 kJ/kg, which are noteworthy considering their ceramic and epoxy composition. Finite element analyses were then conducted to reveal how mechanical load distribution between the different phases of the composites and the influence of microstructure on fracture paths can lead to enhancement in mechanical properties.
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.
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