{"title":"可编程成型技术实现了陶瓷元气凝胶的高拉伸性,可用于热防护","authors":"Xuan Zhang, Jianyong Yu, Yang Si","doi":"10.1002/adma.202412962","DOIUrl":null,"url":null,"abstract":"<p>Ceramic aerogels hold significant potential for thermal insulation, yet their mechanical stretchability and thermal stability fall short in extreme environments. Here, the study presents a programmable shape-morphing strategy aimed at engineering a binary network topology structure within ceramic aerogels to effectively dissipate stress and block heat transfer. The special topology design, which includes kirigami lamellated aerogels for bearing loading stress and randomly assembled aerogels for mechanical energy pre-storage to transfer tensile stress, effectively achieves unexpected mechanical tensile properties and thermal stability. The resulting robust meta-aerogels demonstrate remarkable structural stability with topology-derived mechanical tensile of up to 85% strain, excellent resilience to 500 cycles of 50% tensile strain, 1000 cycles of 60% buckling strain, and 500 cycles of 50% compressive strain, temperature-invariant tensile recovery capability; simultaneously, low thermal conductivity of 33.01 mW m<sup>−1</sup> K<sup>−1</sup> and tensile-invariant thermal insulation makes the ceramic meta-aerogels an ideal substitute material for various applications.</p>","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"37 3","pages":""},"PeriodicalIF":27.4000,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Programmable Shape-Morphing Enables Ceramic Meta-Aerogel Highly Stretchable for Thermal Protection\",\"authors\":\"Xuan Zhang, Jianyong Yu, Yang Si\",\"doi\":\"10.1002/adma.202412962\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Ceramic aerogels hold significant potential for thermal insulation, yet their mechanical stretchability and thermal stability fall short in extreme environments. Here, the study presents a programmable shape-morphing strategy aimed at engineering a binary network topology structure within ceramic aerogels to effectively dissipate stress and block heat transfer. The special topology design, which includes kirigami lamellated aerogels for bearing loading stress and randomly assembled aerogels for mechanical energy pre-storage to transfer tensile stress, effectively achieves unexpected mechanical tensile properties and thermal stability. The resulting robust meta-aerogels demonstrate remarkable structural stability with topology-derived mechanical tensile of up to 85% strain, excellent resilience to 500 cycles of 50% tensile strain, 1000 cycles of 60% buckling strain, and 500 cycles of 50% compressive strain, temperature-invariant tensile recovery capability; simultaneously, low thermal conductivity of 33.01 mW m<sup>−1</sup> K<sup>−1</sup> and tensile-invariant thermal insulation makes the ceramic meta-aerogels an ideal substitute material for various applications.</p>\",\"PeriodicalId\":114,\"journal\":{\"name\":\"Advanced Materials\",\"volume\":\"37 3\",\"pages\":\"\"},\"PeriodicalIF\":27.4000,\"publicationDate\":\"2024-11-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Advanced Materials\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/adma.202412962\",\"RegionNum\":1,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Materials","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/adma.202412962","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Programmable Shape-Morphing Enables Ceramic Meta-Aerogel Highly Stretchable for Thermal Protection
Ceramic aerogels hold significant potential for thermal insulation, yet their mechanical stretchability and thermal stability fall short in extreme environments. Here, the study presents a programmable shape-morphing strategy aimed at engineering a binary network topology structure within ceramic aerogels to effectively dissipate stress and block heat transfer. The special topology design, which includes kirigami lamellated aerogels for bearing loading stress and randomly assembled aerogels for mechanical energy pre-storage to transfer tensile stress, effectively achieves unexpected mechanical tensile properties and thermal stability. The resulting robust meta-aerogels demonstrate remarkable structural stability with topology-derived mechanical tensile of up to 85% strain, excellent resilience to 500 cycles of 50% tensile strain, 1000 cycles of 60% buckling strain, and 500 cycles of 50% compressive strain, temperature-invariant tensile recovery capability; simultaneously, low thermal conductivity of 33.01 mW m−1 K−1 and tensile-invariant thermal insulation makes the ceramic meta-aerogels an ideal substitute material for various applications.
期刊介绍:
Advanced Materials, one of the world's most prestigious journals and the foundation of the Advanced portfolio, is the home of choice for best-in-class materials science for more than 30 years. Following this fast-growing and interdisciplinary field, we are considering and publishing the most important discoveries on any and all materials from materials scientists, chemists, physicists, engineers as well as health and life scientists and bringing you the latest results and trends in modern materials-related research every week.