On the quest for the strongest materials

  title={On the quest for the strongest materials},
  author={Javier Llorca},
  pages={264 - 265}
  • J. Llorca
  • Published 20 April 2018
  • Materials Science
  • Science
Diamond nanoneedles have strength approaching the theoretical maximum The strength of a material is a measure of its ability to withstand a load without breaking. Scientists in search of the strongest materials have recently turned their attention to nanomaterials, which have few of the defects that typically reduce a material's strength. On page 300 of this issue, Banerjee et al. (1) show that when nanoscale single-crystal diamond needles are elastically deformed, they fail at a maximum local… 
7 Citations
Approaching diamond’s theoretical elasticity and strength limits
Th thin <100>-orientated diamond nanoneedles can reach diamond’s theoretical strength and elasticity limits in tension, and it is shown that reversible elastic deformation depends both on nan oneedle diameter and orientation.
Mechanical behavior of InP twinning superlattice nanowires.
The experimental results showed that the fracture of twinned nanowires occurred in the absence of inelastic deformation mechanisms by the propagation of a crack from the nanowire surface along the twin boundary, which was supported by molecular dynamics simulations of the tensile deformation of thenanowires.
Computational prediction of the molecular configuration of three-dimensional network polymers
An approach combining kinetic Monte Carlo and molecular dynamics simulations that chemically and physically predicts the interactions between building blocks in time and in space for the entire formation process of three-dimensional networks is reported.
The effect of elastic strains on the adsorption energy of H, O, and OH in transition metals.
The information in this paper allows the immediate and accurate estimation of the effect of any elastic strain on the adsorption energies of H, O, and OH in 11 transition metals with more than half-filled d-orbitals.
From time dependent incorporation of molecular building blocks to application properties for inorganic and organic three-dimensional network polymers
The three-dimensional configurational arrangement of natural and synthetic network materials determines their application range. Control of the real time incorporation of each building block,


Ultra-strength materials
Measurements of near-ultimate strength for multiwalled carbon nanotubes and irradiation-induced crosslinking improvements.
Multiwalled carbon nanotubes with a mean fracture strength >100 GPa are reported, which exceeds earlier observations by a factor of approximately three and are in excellent agreement with quantum-mechanical estimates for nanot tubes containing only an occasional vacancy defect, and are approximately 80% of the values expected for defect-free tubes.
Elastic strain engineering for unprecedented materials properties
“Smaller is stronger.” Nanostructured materials such as thin films, nanowires, nanoparticles, bulk nanocomposites, and atomic sheets can withstand non-hydrostatic (e.g., tensile or shear) stresses up
Strength and breaking mechanism of multiwalled carbon nanotubes under tensile load
The tensile strengths of individual multiwalled carbon nanotubes (MWCNTs) were measured with a "nanostressing stage" located within a scanning electron microscope and a variety of structures were revealed, such as a nanotube ribbon, a wave pattern, and partial radial collapse.
Ultralarge elastic deformation of nanoscale diamond
It is discovered that diamond nanoneedles can deform elastically after all, and the discovery offers the potential for new applications through optimized design of diamond nanostructure, geometry, elastic strains, and physical properties.
The mechanical and strength properties of diamond
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  • Geology
    Reports on progress in physics. Physical Society
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Two other groups of materials based on carbon, namely the fullerenes and graphines have been identified in recent years and are now the subject of intense research.
High-Strength Chemical-Vapor–Deposited Graphene and Grain Boundaries
It is shown that the elastic stiffness of CVD-graphene is identical to that of pristine graphene if postprocessing steps avoid damage or rippling, and its strength is only slightly reduced despite the existence of grain boundaries.
Key factors limiting carbon nanotube yarn strength: exploring processing-structure-property relationships.
A new perspective on CNT yarn design is provided that can serve as a foundation for the development of future composites that effectively exploit the superior mechanical performance of CNTs.
“Stretching” the energy landscape of oxides—Effects on electrocatalysis and diffusion
Elastic strain engineering offers a new route to enable high-performance catalysts, electrochemical energy conversion devices, separation membranes and memristors. By applying mechanical stress, the