Idea of macro-scale and micro-scale prestressed ceramics  

作　　者：Junfeng Gu Shuai Fu Hang Ping Wei Ji Ji Zou Hao Wang Weimin Wang Fan Zhang Hanxing Liu Zhengyi Fu 

机构地区：[1]State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan,China [2]School of Materials Science and Engineering,Wuhan University of Technology,Wuhan,China

出　　处：《Interdisciplinary Materials》2024年第6期897-906,共10页交叉学科材料(英文)

基　　金：Fundamental Research Funds for the Central Universities,Grant/Award Number:WUT:3120620196;China Postdoctoral Science Foundation,Grant/Award Number:2021M702540;National Key Research and Development Program of China,Grant/Award Number:2021YFA0715700。

摘　　要：The brittleness of ceramics restricts their engineering application.Prestressing is promising to solve the problem,yet still lacks enough attention and ex-tensive investigation.This work proposes the idea of macro-scale and micro-scale prestressed ceramics:to form compressive prestress in macro-or micro-scale range in the ceramics by designed additional force,which offsets the fracture stress at the crack tips,then enhances the strength of ceramics.The macro-scale prestressed ceramic has a designed long-range ordering stress distribution in a large scale,similar to the reinforced concrete and tempered glass.The micro-scale ceramic has a designed short-range ordered stress dis-tribution,similar to that in the natural biomaterials.Strategies constructing the macro-scale and micro-scale prestressed ceramics are planned.Future research interests and challenges are prospected for developing the mechan-ical properties of ceramics.

关 键 词：macro-scale MICRO-SCALE prestressed ceramics STRENGTH 

分 类 号：TQ1[化学工程]