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A perspective on auxetic nanomaterials

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ABSTRACT

Nanomaterials have recently been found to exhibit auxetic behavior, or a negative Poisson’s ratio, whereby the lateral dimensions of the material expand, rather than shrink, in response to applied tensile loading. In this brief review, we use the form of question–answer to highlight key points and outstanding issues related to the field of auxetic nanomaterials.

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Patterned porous graphene under uniaxial loading. Size = 24.6 × 24.7 nm2. Configurations of the patterned porous graphene at strain a and b under uniaxial loading in the zigzag direction(Reproduced with permission from Ho et al. [43]. Copyright 2016, Wiley-VCH)
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Fig2: Patterned porous graphene under uniaxial loading. Size = 24.6 × 24.7 nm2. Configurations of the patterned porous graphene at strain a and b under uniaxial loading in the zigzag direction(Reproduced with permission from Ho et al. [43]. Copyright 2016, Wiley-VCH)

Mentions: Bulk materials have also been successfully patterned through cutting techniques to induce NPR [8, 22–25], and this approach also has produced similar success in creating NPR nanomaterials. Figure 2 illustrates this for patterned graphene, which exhibits NPR because the internal units rotate in response to the applied strain.Fig. 2


A perspective on auxetic nanomaterials
Patterned porous graphene under uniaxial loading. Size = 24.6 × 24.7 nm2. Configurations of the patterned porous graphene at strain a and b under uniaxial loading in the zigzag direction(Reproduced with permission from Ho et al. [43]. Copyright 2016, Wiley-VCH)
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC5392538&req=5

Fig2: Patterned porous graphene under uniaxial loading. Size = 24.6 × 24.7 nm2. Configurations of the patterned porous graphene at strain a and b under uniaxial loading in the zigzag direction(Reproduced with permission from Ho et al. [43]. Copyright 2016, Wiley-VCH)
Mentions: Bulk materials have also been successfully patterned through cutting techniques to induce NPR [8, 22–25], and this approach also has produced similar success in creating NPR nanomaterials. Figure 2 illustrates this for patterned graphene, which exhibits NPR because the internal units rotate in response to the applied strain.Fig. 2

View Article: PubMed Central - PubMed

ABSTRACT

Nanomaterials have recently been found to exhibit auxetic behavior, or a negative Poisson’s ratio, whereby the lateral dimensions of the material expand, rather than shrink, in response to applied tensile loading. In this brief review, we use the form of question–answer to highlight key points and outstanding issues related to the field of auxetic nanomaterials.

No MeSH data available.


Related in: MedlinePlus