Nanoindentation and nanoscratch investigations on graphene-based nanocomposites

Shokrieh, M.M.; Hosseinkhani, M.R.; Naimi-Jamal, Mohammad Reza; Tourani, H.

doi:10.1016/j.polymertesting.2012.09.001

Cited by 159 publications

(98 citation statements)

References 30 publications

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“…Besides the impact of the intrinsic high hardness and strength of graphene [66], a strong interface between rGO and PMMA is considered an essential reason for this great enhancement [65,66]. The presence of m-rGO sheets is likely to generate numerous obstacles and interlock the motion of shear bands in the polymer matrix, which might offer a better resistance to plastic deformation and achieve more efficient load transfer [27].…”

Section: Microhardness Of the Ga-pmma Compositesmentioning

confidence: 99%

Advanced multifunctional graphene aerogel – Poly (methyl methacrylate) composites: Experiments and modeling

Fan

Gong

Nguyen

et al. 2015

Carbon

130

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Section: Microhardness Of the Ga-pmma Compositesmentioning

confidence: 99%

Advanced multifunctional graphene aerogel – Poly (methyl methacrylate) composites: Experiments and modeling

Fan

Gong

Nguyen

et al. 2015

Carbon

130

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“…For the Berkovich indenter, the E i and ν i are 1140 GPa and 0.07 respectively [12]. Consequently, the reduced elastic modulus, E r , can be defined as:…”

Section: Nanoindentationmentioning

confidence: 99%

Effects of Metakaolin on Nanomechanical Properties of Cement Paste

Barbhuiya

Chow

2015

RILEM Bookseries

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Metakaolin (MK) is a pozzolanic material, which is a dehydroxylated form of the clay mineral kaolinite. It is obtained by calcination of kaolinite clay at a temperature between 500°C and 800°C. In cement matrix, MK reacts with Ca (OH) 2 , to produce calcium silicate hydrate (CSH) gel. MK also contains alumina that reacts with Ca(OH) 2 to produce additional alumina-containing phases, including C 4 AH 13 , C 2 ASH 8 and C 3 AH 6 . This research aims to provide a better understanding of the effects of MK on the nanomechanical properties of the main phases present within the cement paste. Two different mixes were prepared, one control mix and the other one with 10 % MK (by cement weight). A constant waterbinder ratio of 0.4 was used for both the mixes. Fraction volumes determined from nanoindentation testing show an increase in the amounts of high-density CSH at the cost of low-density CSH gel in cement pastes containing 10 % MK.

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“…This technique is a very powerful method, capable of measuring samples of a very small size, such as nanocomposites, and obtaining reliable results [16,17]. The hardness and the elastic modulus of the specimens, which have very small volume, can be calculated mathematically in nanoindentation testing [18].…”

Section: Introductionmentioning

confidence: 99%