Wrinkled Few-Layer Graphene as Highly Efficient Load Bearer

Kód výsledku v IS VaVaI

RIV/61388955:_____/17:00476999 - isvavai.cz

Nalezeny alternativní kódy

RIV/00216208:11310/17:10363512

Výsledek na webu

http://dx.doi.org/10.1021/acsami.7b07547

DOI - Digital Object Identifier

10.1021/acsami.7b07547

Jazyk výsledku

angličtina

Název v původním jazyce

Wrinkled Few-Layer Graphene as Highly Efficient Load Bearer

Popis výsledku v původním jazyce

Multilayered graphitic materials are not suitable as load-bearers due to their inherent weak interlayer bonding (for example, graphite is a solid lubricant in certain applications). This situation is largely improved when two-dimensional (2D) materials such as a monolayer (SLG) graphene are employed. The downside in these cases is the presence of thermally or mechanically induced wrinkles which are ubiquitous in 2D materials. Here we set out to examine the effect of extensive large wavelength/amplitude wrinkling on the stress transfer capabilities of exfoliated simply supported graphene flakes. Contrary to common belief we present clear evidence that this type of “corrugation” enhances the load-bearing capacity of few-layer graphene as compared to “flat” specimens. This effect is the result of the significant increase of the graphene/polymer interfacial shear stress per increment of applied strain due to wrinkling and paves the way for designing affordable graphene composites with highly improved stress-transfer efficiency.

Název v anglickém jazyce

Wrinkled Few-Layer Graphene as Highly Efficient Load Bearer

Popis výsledku anglicky

Multilayered graphitic materials are not suitable as load-bearers due to their inherent weak interlayer bonding (for example, graphite is a solid lubricant in certain applications). This situation is largely improved when two-dimensional (2D) materials such as a monolayer (SLG) graphene are employed. The downside in these cases is the presence of thermally or mechanically induced wrinkles which are ubiquitous in 2D materials. Here we set out to examine the effect of extensive large wavelength/amplitude wrinkling on the stress transfer capabilities of exfoliated simply supported graphene flakes. Contrary to common belief we present clear evidence that this type of “corrugation” enhances the load-bearing capacity of few-layer graphene as compared to “flat” specimens. This effect is the result of the significant increase of the graphene/polymer interfacial shear stress per increment of applied strain due to wrinkling and paves the way for designing affordable graphene composites with highly improved stress-transfer efficiency.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

GA14-15357S: Modifikace elektronové struktury grafenu mechanickou deformací

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

ACS Applied Materials and Interfaces

ISSN

1944-8244

e-ISSN

—

Svazek periodika

9

Číslo periodika v rámci svazku

31

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

26593-26601

Kód UT WoS článku

000407540400104

EID výsledku v databázi Scopus

2-s2.0-85027236395