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- W3167409031 abstract "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 BaTiO3 (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." @default.
- W3167409031 created "2021-06-22" @default.
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- W3167409031 date "2021-06-11" @default.
- W3167409031 modified "2023-09-30" @default.
- W3167409031 title "Superelastic oxide micropillars enabled by surface tension–modulated 90° domain switching with excellent fatigue resistance" @default.
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- W3167409031 doi "https://doi.org/10.1073/pnas.2025255118" @default.
- W3167409031 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/8214672" @default.
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