Journal ArticleDOI
Fabrication and deformation of three-dimensional hollow ceramic nanostructures
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TLDR
The fabrication of hollow ceramic scaffolds that mimic the length scales and hierarchy of biological materials are reported, suggesting that the hierarchical design principles offered by hard biological organisms can be applied to create damage-tolerant lightweight engineering materials.Abstract:
Creating lightweight, mechanically robust materials has long
been an engineering pursuit. Many siliceous skeleton species—
such as diatoms, sea sponges and radiolarians—have remarkably
high strengths when compared with man-made materials
of the same composition, yet are able to remain lightweight
and porous1–7. It has been suggested that these properties
arise from the hierarchical arrangement of different structural
elements at their relevant length scales8,9. Here, we report the
fabrication of hollow ceramic scaffolds that mimic the length
scales and hierarchy of biological materials. The constituent
solids attain tensile strengths of 1.75 GPa without failure
even after multiple deformation cycles, as revealed by in situ
nanomechanical experiments and finite-element analysis. We
discuss the high strength and lack of failure in terms of stress
concentrators at surface imperfections and of local stresses
within the microstructural landscape. Our findings suggest that
the hierarchical design principles offered by hard biological organisms
can be applied to create damage-tolerant lightweight
engineering materials.read more
Citations
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Journal ArticleDOI
3D Hierarchical lattice ferroelectric metamaterials
J. Shi,A.H. Akbarzadeh +1 more
TL;DR: In this paper, the effect of hierarchical order, lattice topology and relative density on piezoelectric and pyroelectric performance of 3D hierarchical lattice ferroelectric metamaterials is explored.
Journal ArticleDOI
Metals by Micro‐Scale Additive Manufacturing: Comparison of Microstructure and Mechanical Properties
Alain Reiser,Lukas Koch,Kathleen Dunn,Toshiki Matsuura,Futoshi Iwata,Ofer Fogel,Zvi Kotler,Nanjia Zhou,Kristin M. Charipar,Alberto Piqué,Patrik Rohner,Dimos Poulikakos,Sanghyeon Lee,Seung Kwon Seol,Seung Kwon Seol,Ivo Utke,Cathelijn van Nisselroy,Tomaso Zambelli,Jeffrey M. Wheeler,Ralph Spolenak +19 more
TL;DR: Practical guidelines for users of small-scale additive methods are provided and a baseline for the future optimization of the properties of printed metallic objects is established-a significant step toward the potential establishment of AM techniques in microfabrication.
Journal ArticleDOI
Ductility and work hardening in nano-sized metallic glasses
TL;DR: In-situ nano-tensile experiments on 70 nm-diameter free-standing electroplated NiP metallic glass nanostructures reveal tensile true strains of ∼18%, an amount comparable to compositionally identical 100nmdiameter focused ion beam samples.
Journal ArticleDOI
A review of 3D printed porous ceramics
TL;DR: In this article , the 3D printing technologies for fabricating porous ceramic parts are introduced, including binder jetting, selective laser sintering, direct ink writing, stereolithography, laminated object manufacturing, and indirect 3D print processes.
Journal ArticleDOI
Inverse Design Strategies for 3D Surfaces Formed by Mechanically Guided Assembly
Zhichao Fan,Yiyuan Yang,Fan Zhang,Zheng Xu,Zheng Xu,Hangbo Zhao,Taoyi Wang,Honglie Song,Yonggang Huang,John A. Rogers,Yihui Zhang +10 more
TL;DR: guided mechanical buckling processes provide access to a rich range of complex 3D mesostructures in high-performance materials, from inorganic and organic semiconductors, metals and dielectrics, to ceramics and even 2D materials.
References
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Book
Cellular Solids: Structure and Properties
Lorna J. Gibson,Michael F. Ashby +1 more
TL;DR: The linear elasticity of anisotropic cellular solids is studied in this article. But the authors focus on the design of sandwich panels with foam cores and do not consider the properties of the materials.
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TL;DR: In this paper, the authors present a model for the development of the MICROSTRUCTURE in CERAMICS based on phase transformation, glass formation and glass-Ceramics.
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Mechanical Behavior of Materials
TL;DR: A balanced mechanics-materials approach and coverage of the latest developments in biomaterials and electronic materials, the new edition of this popular text is the most thorough and modern book available for upper-level undergraduate courses on the mechanical behavior of materials as discussed by the authors.
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THE MATERIAL BONE: Structure-Mechanical Function Relations
S. Weiner,Hanoch Daniel Wagner +1 more
TL;DR: The structure-mechanical relations at each of the hierarchical levels of organization are reviewed, highlighting wherever possible both underlying strategies and gaps in the authors' knowledge.