Imperial College London

Prof Alexander Bismarck

Faculty of EngineeringDepartment of Chemical Engineering

Visiting Professor
 
 
 
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Contact

 

+44 (0)20 7594 5578a.bismarck Website

 
 
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Assistant

 

Mrs Sarah Payne +44 (0)20 7594 5567

 
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Location

 

526ACE ExtensionSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@inproceedings{De:2016,
author = {De, Luca F and Bismarck, A and Shaffer, MSP},
title = {Anisotropic nanostructure inspired by nature for energy abosrbing composite interfaces},
year = {2016}
}

RIS format (EndNote, RefMan)

TY  - CPAPER
AB - © 2016, European Conference on Composite Materials, ECCM. All rights reserved.The "brick-and-mortar" structure of natural nacre is well known for its combination of high stiffness, strength and toughness thanks to well organised hard inclusions, experiencing pull-out within a soft organic matrix rather than fracture upon loading. Mimicking the structure of nacre while maintaining the same phase proportions and aspect ratio, but at a smaller length scale, opens up the possibility to create composite materials with high performance and large energy absorption properties through interface deformation. Therefore, Layered Double Hydroxide (LDH) nanoplatelets and poly(sodium 4-styrene sulfonate) (PSS) polylelectrolyte were assembled together with a high degree of alignment using Layer-by-Layer (LbL) assembly, resulting in a dense and well organized nanostructure similar to that of nacre. The mechanical properties of the nacre-nanomimetics were comparable to those of natural nacre while the plastic deformation was found amplified. The amplification of the proportion of plastic deformation can be explained by an increase in the volume of platelet interfaces per unit volume at the nanometer length scale. The known toughening mechanisms of nacre, such as platelet sliding and interlocking as well as crack deflection, were also found to occur in the reduced length scale embodiment.
AU - De,Luca F
AU - Bismarck,A
AU - Shaffer,MSP
PY - 2016///
TI - Anisotropic nanostructure inspired by nature for energy abosrbing composite interfaces
ER -