利用生物启发微结构合理设计和制造分层陶瓷,实现可定制的强度和韧性

IF 7.9 2区 综合性期刊 Q1 CHEMISTRY, MULTIDISCIPLINARY
{"title":"利用生物启发微结构合理设计和制造分层陶瓷,实现可定制的强度和韧性","authors":"","doi":"10.1016/j.xcrp.2024.102140","DOIUrl":null,"url":null,"abstract":"<p>Dense bioceramics feature hierarchical microstructures with weak interfaces that endow them with strength, toughness, and structural functionalities. Conversely, most technical ceramics possess limited structural complexity and strong grain boundaries that restrict their toughness and functions. Here, we report a rational design strategy to fabricate ceramics with various bioinspired microstructural motifs, leading to strength, toughness, and locally varying properties. We employ magnetically assisted slip casting (MASC) for local orientations of alumina microplatelets and ultrafast high-temperature sintering (UHS) as a densifying method. We sequentially vary the slurry composition and sintering processes to attain high texture, relative density, and weak grain interfaces. We realize dense ceramics with horizontal, periodic, and graded motifs that exhibit direction- and site-specific properties, with flexural strengths of ∼290, 155, and 215 MPa, and fracture toughness of ∼7, 5, and 10 MPa·m<sup>0.5</sup>, respectively. The strategy could be used to fabricate ceramic composites for tailorable local and bulk properties.</p>","PeriodicalId":9703,"journal":{"name":"Cell Reports Physical Science","volume":"25 1","pages":""},"PeriodicalIF":7.9000,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Rational design and fabrication of hierarchical ceramics using bioinspired microstructures for tailorable strength and toughness\",\"authors\":\"\",\"doi\":\"10.1016/j.xcrp.2024.102140\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Dense bioceramics feature hierarchical microstructures with weak interfaces that endow them with strength, toughness, and structural functionalities. Conversely, most technical ceramics possess limited structural complexity and strong grain boundaries that restrict their toughness and functions. Here, we report a rational design strategy to fabricate ceramics with various bioinspired microstructural motifs, leading to strength, toughness, and locally varying properties. We employ magnetically assisted slip casting (MASC) for local orientations of alumina microplatelets and ultrafast high-temperature sintering (UHS) as a densifying method. We sequentially vary the slurry composition and sintering processes to attain high texture, relative density, and weak grain interfaces. We realize dense ceramics with horizontal, periodic, and graded motifs that exhibit direction- and site-specific properties, with flexural strengths of ∼290, 155, and 215 MPa, and fracture toughness of ∼7, 5, and 10 MPa·m<sup>0.5</sup>, respectively. The strategy could be used to fabricate ceramic composites for tailorable local and bulk properties.</p>\",\"PeriodicalId\":9703,\"journal\":{\"name\":\"Cell Reports Physical Science\",\"volume\":\"25 1\",\"pages\":\"\"},\"PeriodicalIF\":7.9000,\"publicationDate\":\"2024-08-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Cell Reports Physical Science\",\"FirstCategoryId\":\"103\",\"ListUrlMain\":\"https://doi.org/10.1016/j.xcrp.2024.102140\",\"RegionNum\":2,\"RegionCategory\":\"综合性期刊\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cell Reports Physical Science","FirstCategoryId":"103","ListUrlMain":"https://doi.org/10.1016/j.xcrp.2024.102140","RegionNum":2,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

摘要

致密生物陶瓷具有分层微结构和弱界面,这赋予了它们强度、韧性和结构功能。相反,大多数技术陶瓷具有有限的结构复杂性和强晶界,这限制了它们的韧性和功能。在此,我们报告了一种合理的设计策略,以制造具有各种生物启发微结构图案的陶瓷,从而获得强度、韧性和局部不同的特性。我们采用磁助滑移铸造(MASC)来实现氧化铝微孔的局部取向,并采用超快高温烧结(UHS)作为致密化方法。我们依次改变浆料成分和烧结工艺,以获得高质地、相对密度和弱晶粒界面。我们实现了具有水平、周期和分级图案的致密陶瓷,这些图案表现出特定方向和部位的特性,抗弯强度分别为 ∼290、155 和 215 兆帕,断裂韧性分别为 ∼7、5 和 10 兆帕-m0.5。该策略可用于制造陶瓷复合材料,以获得可定制的局部和整体性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Rational design and fabrication of hierarchical ceramics using bioinspired microstructures for tailorable strength and toughness

Rational design and fabrication of hierarchical ceramics using bioinspired microstructures for tailorable strength and toughness

Dense bioceramics feature hierarchical microstructures with weak interfaces that endow them with strength, toughness, and structural functionalities. Conversely, most technical ceramics possess limited structural complexity and strong grain boundaries that restrict their toughness and functions. Here, we report a rational design strategy to fabricate ceramics with various bioinspired microstructural motifs, leading to strength, toughness, and locally varying properties. We employ magnetically assisted slip casting (MASC) for local orientations of alumina microplatelets and ultrafast high-temperature sintering (UHS) as a densifying method. We sequentially vary the slurry composition and sintering processes to attain high texture, relative density, and weak grain interfaces. We realize dense ceramics with horizontal, periodic, and graded motifs that exhibit direction- and site-specific properties, with flexural strengths of ∼290, 155, and 215 MPa, and fracture toughness of ∼7, 5, and 10 MPa·m0.5, respectively. The strategy could be used to fabricate ceramic composites for tailorable local and bulk properties.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Cell Reports Physical Science
Cell Reports Physical Science Energy-Energy (all)
CiteScore
11.40
自引率
2.20%
发文量
388
审稿时长
62 days
期刊介绍: Cell Reports Physical Science, a premium open-access journal from Cell Press, features high-quality, cutting-edge research spanning the physical sciences. It serves as an open forum fostering collaboration among physical scientists while championing open science principles. Published works must signify significant advancements in fundamental insight or technological applications within fields such as chemistry, physics, materials science, energy science, engineering, and related interdisciplinary studies. In addition to longer articles, the journal considers impactful short-form reports and short reviews covering recent literature in emerging fields. Continually adapting to the evolving open science landscape, the journal reviews its policies to align with community consensus and best practices.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信