Journal ArticleDOI
Fabrication and deformation of three-dimensional hollow ceramic nanostructures
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
More filters
Journal ArticleDOI
Tailorable Micelle Morphology in Self-Assembling Block Copolymer Gels for Templating Nanoporous Ceramics
John J. Bowen,Lisa M. Rueschhoff,Kara Martin,Dayton P. Street,Dayton P. Street,Tulsi A. Patel,Tulsi A. Patel,Maria J. S. Parvulescu,Nicholas M. Bedford,Hilmar Koerner,Soenke Seifert,Matthew B. Dickerson +11 more
TL;DR: In this article, a morphology map for a poly(methyl methacrylate)-based block copolymer is described. But the morphology map is restricted to block co-polymers.
Journal ArticleDOI
Mechanics of bacteria-assisted extrinsic healing
TL;DR: In this paper, a model for the growth of crystal pillars is developed to explain the bacteria-assisted growth of the calcium carbonate (CaCO3) crystal forest within the fracture interface.
Journal ArticleDOI
Biomorphic Ceramics: Synthesis and Characterization of Preceramic Polymer-Modified Melanin.
Maria J. S. Parvulescu,Kara Martin,Pavel Mogilevsky,Tulsi A. Patel,Tulsi A. Patel,Dayton P. Street,Dayton P. Street,Maneesh K. Gupta,Chia-Suei Hung,Matthew B. Dickerson +9 more
TL;DR: In this paper, the melanization of Escherichia coli and its subsequent silanization and functionalization with preceramic polymers was used to make novel biomorphic silicon-based ceramic materials.
Journal ArticleDOI
Single-digit-micrometer-resolution continuous liquid interface production
Kai-Yu Hsiao,Tim Samuelsen,Gabriel Lipkowitz,Jason M Kronenfeld,D. S. Ilyn,Audrey Shih,Maria T. Dulay,Lee Tate,Eric S. G. Shaqfeh,Joseph M. DeSimone +9 more
TL;DR: In this article , a single-digit-micrometer-resolution CLIP-based 3D printer that can create millimeter-scale 3D prints with single digit-micron-resolution features in just a few minutes.
References
More filters
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.
Book
Introduction to Ceramics
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.
MonographDOI
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.
Journal ArticleDOI
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.