Superelastic oxide micropillars enabled by surface tension–modulated 90° domain switching with excellent fatigue resistance

Li，Yingwei1,2,3,4; Chu，Kangjie5,6; Liu，Chang7,8; Jiang，Peng9; Qu，Ke9,10; Gao，Peng10,11; Wang，Jie7,8; Ren，Fuzeng5; Sun，Qingping6; Chen，Longqing12,13,14; Li，Jiangyu4,5,9

2021-06-15

10.1073/pnas.2025255118

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA   影响因子和分区

0027-8424

1091-6490

Superelastic materials capable of recovering large nonlinear strains are ideal for a variety of applications in morphing structures, reconfigurable systems, and robots. However, making oxide materials superelastic has been a long-standing challenge due to their intrinsic brittleness. Here, we fabricate ferroelectric BaTiO (BTO) micropillars that not only are superelastic but also possess excellent fatigue resistance, lasting over 1 million cycles without accumulating residual strains or noticeable variation in stress–strain curves. Phase field simulations reveal that the large recoverable strains of BTO micropillars arise from surface tension–modulated 90° domain switching and thus are size dependent, while the small energy barrier and ultralow energy dissipation are responsible for their unprecedented cyclic stability among superelastic materials. This work demonstrates a general strategy to realize superelastic and fatigue-resistant domain switching in ferroelectric oxides for many potential applications.

Fatigue Ferroelectric switching Oxide micropillars Superelasticity Surface tension

SCI

英语

NI期刊 ; NI论文

通讯

National Key Research and Development Program of China[2016YFA0201001] ; National Natural Science Foundation of China[11972262,11627801,11672264,11972320,52021006,11974023] ; Guangdong Provincial Key Laboratory Program from the Department of Science and Technology of Guangdong Province[2021B1212040001] ; Natural Science Foundation of Hubei Province[2019CFB486] ; Fundamental Research Program of Shenzhen[JCYJ20170412153039309] ; Zhejiang Provincial Natural Science Foundation[LZ17A020001] ; Science, Technology, and Innovation Commission of Shenzhen Municipality[SGDX2019081623360564] ; open foundation of Hubei Key Laboratory of Theory and Application of Advanced Materials Mechanics (Wuhan University of Technology)[TAM202002]

Science & Technology - Other Topics

Multidisciplinary Sciences

WOS:000664196400004

NATL ACAD SCIENCES

BIOLOGY & BIOCHEMISTRY;CLINICAL MEDICINE;MULTIDISCIPLINARY;PLANT & ANIMAL SCIENCE;ENVIRONMENT/ECOLOGY;SOCIAL SCIENCES, GENERAL;MICROBIOLOGY;ECONOMICS BUSINESS;IMMUNOLOGY;MATERIALS SCIENCE;MATHEMATICS;SPACE SCIENCE;MOLECULAR BIOLOGY & GENETICS;PHARMACOLOGY & TOXICOLOGY;CHEMISTRY;PSYCHIATRY/PSYCHOLOGY;NEUROSCIENCE & BEHAVIOR;PHYSICS;GEOSCIENCES;AGRICULTURAL SCIENCES;ENGINEERING

2-s2.0-85107968066

Scopus

1.School of Civil Engineering,Wuhan University,Wuhan,Hubei,430072,China
2.State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan,Hubei,430072,China
3.Hubei Key Laboratory of Theory and Application of Advanced Materials Mechanics,Wuhan University of Technology,Wuhan,Hubei,430070,China
4.Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
5.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
6.Department of Mechanical and Aerospace Engineering,Hong Kong University of Science and Technology,Hong Kong,Clear Water Bay,Hong Kong
7.Department of Engineering Mechanics,Zhejiang University,Hangzhou,Zhejiang,310027,China
8.Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province,Zhejiang University,Hangzhou,Zhejiang,310027,China
9.Shenzhen Key Laboratory of Nanobiomechanics,Shenzhen Institutes of Advanced Technology,Chinese Academy of Sciences,Shenzhen,Guangdong,518055,China
10.Electron Microscopy Laboratory,School of Physics,Peking University,Beijing,100871,China
11.Interdisciplinary Institute of Light-Element Quantum Materials and Research Center for Light-Element Advanced Materials,Peking University,Beijing,100871,China
12.Department of Materials Science and Engineering,Pennsylvania State University,University Park,16802,United States
13.Department of Engineering Science and Mechanics,Pennsylvania State University,University Park,16802,United States
14.Department of Mathematics,Pennsylvania State University,University Park,16802,United States

Li，Yingwei,Chu，Kangjie,Liu，Chang,等. Superelastic oxide micropillars enabled by surface tension–modulated 90° domain switching with excellent fatigue resistance[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2021,118(24).

Li，Yingwei.,Chu，Kangjie.,Liu，Chang.,Jiang，Peng.,Qu，Ke.,...&Li，Jiangyu.(2021).Superelastic oxide micropillars enabled by surface tension–modulated 90° domain switching with excellent fatigue resistance.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,118(24).

Li，Yingwei,et al."Superelastic oxide micropillars enabled by surface tension–modulated 90° domain switching with excellent fatigue resistance".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 118.24(2021).