Hysteresis and its impact on characterization of mechanical properties of suspended monolayer molybdenum-disulfide sheets

The hysteresis phenomenon frequently arises in two-dimensional (2D) material nanoindentation, which is generally expected to be excluded from characterizing the elastic properties due to the imperfect elastic behaviour.

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Compressible and Flexible PPy@MoS2/C Microwave Absorption Foam with Strong Dielectric Polarization from 2D Semiconductor Intermediated Sandwich Structure

Nanoscale ◽

10.1039/d0nr08794g ◽

2021 ◽

Author(s):

Ziqi Yang ◽

Huiqiao Guo ◽

Wenbin You ◽

Zhengchen Wu ◽

Liting Yang ◽

...

Keyword(s):

Dielectric Property ◽

Molybdenum Disulfide ◽

Microwave Absorption ◽

Sandwich Structure ◽

Structural Engineering ◽

Two Dimensional ◽

Dielectric Polarization ◽

2D Material ◽

Major Trend

Structural engineering represents a major trend in two-dimensional (2D) material fields on microscopic interfacial electric/dielectric property and macroscopic device strategy. 2D Molybdenum disulfide (MoS2) with semiconductive feature and lamellar architecture...

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Water-penetration-assisted mechanical transfer of large-scale molybdenum disulfide onto arbitrary substrates

RSC Advances ◽

10.1039/c6ra09681f ◽

2016 ◽

Vol 6 (62) ◽

pp. 57497-57501 ◽

Cited By ~ 11

Author(s):

Shen Lai ◽

Jaeho Jeon ◽

Young-Jae Song ◽

Sungjoo Lee

Keyword(s):

Molybdenum Disulfide ◽

Large Scale ◽

Two Dimensional ◽

Water Penetration ◽

2D Material ◽

Growth Substrates

The transfer of two-dimensional (2D) material layers to arbitrary substrates from growth substrates is critical for many applications.

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Development of Green Insulation Boards from Kenaf Fibres Part 1: Development and Characterization of Mechanical Properties

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.462-463.1343 ◽

2011 ◽

Vol 462-463 ◽

pp. 1343-1348

Author(s):

Sameer Adnan Ibraheem ◽

Aidy Ali ◽

Abdan Khalina

Keyword(s):

Mechanical Properties ◽

Elastic Properties ◽

Optimal Performance ◽

Fibre Content ◽

Kenaf Fibre ◽

Fourth Type ◽

Kenaf Fibres

The purpose of this study was to develop effective green insulation boards fabricated from polyurethane (PU) reinforced with Kenaf fibres. Biocomposites having three different weight contents (40/60, 50/50 and 60/40 Kenaf / PU weight %) were manufactured. A fourth type was made from 60/40 NaOH-treated Kenaf / PU weight %. The results show that the elastic properties increased with Kenaf fibre content. The optimal performance was observed at a weight of 50% Kenaf fibres. In addition, kenaf fibres treated with NaOH exhibited significantly improved mechanical properties.

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Defect evolution behaviors from single sulfur point vacancies to line vacancies in the monolayer molybdenum disulfide

Physical Chemistry Chemical Physics ◽

10.1039/d1cp02852a ◽

2021 ◽

Author(s):

Chan Gao ◽

Xiaoyong Yang ◽

Ming Jiang ◽

LiXin Chen ◽

Zhi Wen Chen ◽

...

Keyword(s):

Mechanical Properties ◽

Transition Metal ◽

Molybdenum Disulfide ◽

Transition Metal Dichalcogenides ◽

Two Dimensional ◽

Defect Evolution ◽

Metal Dichalcogenides ◽

Optoelectronic Applications

Two-dimensional monolayer transition metal dichalcogenides (TMDs) are the promising candidates for many novel nanoelectronic and optoelectronic applications due to their exceptional electronic, optical, chemical and mechanical properties. Experimentally, single chalcogen...

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Probing the chirality-dependent elastic properties and crack propagation behavior of single and bilayer stanene

Physical Chemistry Chemical Physics ◽

10.1039/c8cp03892a ◽

2018 ◽

Vol 20 (35) ◽

pp. 22768-22782 ◽

Cited By ~ 15

Author(s):

Avik Mahata ◽

Tanmoy Mukhopadhyay

Keyword(s):

Mechanical Properties ◽

Crack Propagation ◽

Elastic Properties ◽

Two Dimensional ◽

Propagation Behavior ◽

The Family ◽

Crack Propagation Behavior

Mechanical properties of stanene, a promising quasi-two-dimensional honeycomb-like nanostructure of tin belonging to the family of 2D-Xenes (X = Si, Ge, Sn), have been investigated in this paper.

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MODEL ANALYSIS OF ELASTIC PROPERTIES OF COATING

Collected scientific works of Ukrainian State University of Railway Transport ◽

10.18664/1994-7852.145.2014.249260 ◽

2014 ◽

Author(s):

Sergiy Timofeyev

Keyword(s):

Mechanical Properties ◽

Molybdenum Disulfide ◽

Composite Coating ◽

Elastic Properties ◽

Friction Surface ◽

Deformation Theory ◽

Physical And Mechanical Properties ◽

Adequate Model ◽

Elastoplastic Properties ◽

Friction Surfaces

The article describes a method of solving the problem of designing the friction surfaces withcomposite coatings. Despite the fact that many scientists have investigated the effect of coatings on theproperties of the items during the exploitation, however, has not yet been carried out a detailed study ofelastoplastic properties of the coating to the copper-containing material with different concentrations ofultrafine additions of copper, nickel, molybdenum disulfide. Elastoplastic properties of such materials isusually described by the relations of the deformation theory of plasticity.It is proved that the modeling of physical and mechanical properties, and varying the coatingcomposition can achieve a favorable combination of properties of the surface and the substrate. Proposed ofdesigning friction surface with composite coating, development an adequate model of the interaction ofsurfaces, which makes it possible to judge which components need to enter into the coating to obtain thedesired properties.

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The Mechanical Properties of Nucleic Acids

Single-Molecule Studies of Nucleic Acids and Their Proteins ◽

10.1093/oso/9780198530923.003.0004 ◽

2018 ◽

pp. 67-104

Author(s):

David Bensimon ◽

Vincent Croquette ◽

Jean-François Allemand ◽

Xavier Michalet ◽

Terence Strick

Keyword(s):

Mechanical Properties ◽

Nucleic Acids ◽

Elastic Properties ◽

Hydrodynamic Interactions ◽

Elastic Behaviour ◽

Dna Molecules ◽

Base Pairing ◽

Double Stranded Dna ◽

Stretched Polymers ◽

Experimental Behaviour

This chapter reviews models which describe the elastic properties of stretched polymers—the Kratky–Porod, Freely Jointed Chain (FJC), and Worm-Like Chain (WLC) models—and the effect of self-avoidance on results derived from these. The models are compared with double-stranded DNA (dsDNA) stretching experiments. Dynamics of a single polymer in the presence (Zimm model) or absence (Rouse model) of hydrodynamic interactions between its segments is described, and results on the dynamics of dsDNA and ssDNA of various lengths are discussed. Theoretical and experimental behaviour of twisted DNA is described, deducing the molecule’s torsional modulus and its coupling between stretching and twisting. After discussing the braiding of two DNA molecules and simulation of the twisting and stretching of DNA molecules, this chapter describes the results of stretching experiments on ssDNA and RNA, where self-avoiding and base-pairing interactions contribute to elastic behaviour.

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Synthesis, properties, and optoelectronic applications of two-dimensional MoS2 and MoS2-based heterostructures

Chemical Society Reviews ◽

10.1039/c8cs00314a ◽

2018 ◽

Vol 47 (16) ◽

pp. 6101-6127 ◽

Cited By ~ 97

Author(s):

Hongmei Wang ◽

Chunhe Li ◽

Pengfei Fang ◽

Zulei Zhang ◽

Jin Zhong Zhang

Keyword(s):

Optical Properties ◽

Molybdenum Disulfide ◽

Light Harvesting ◽

Two Dimensional ◽

Electronic And Optical Properties ◽

2D Material ◽

Synthesis Properties ◽

Optoelectronic Applications

As a two-dimensional (2D) material, molybdenum disulfide (MoS2) exhibits unique electronic and optical properties useful for a variety of optoelectronic applications including light harvesting.

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FEM micromechanical modeling of nanocomposites with carbon nanotubes

REVIEWS ON ADVANCED MATERIALS SCIENCE ◽

10.1515/rams-2021-0027 ◽

2021 ◽

Vol 60 (1) ◽

pp. 342-351

Author(s):

Małgorzata Chwał ◽

Aleksander Muc

Keyword(s):

Mechanical Properties ◽

Elastic Properties ◽

Fem Analysis ◽

Micromechanical Modeling ◽

Elastic Behavior ◽

Material Constants ◽

Numerical Predictions ◽

Micromechanical Models ◽

The Impact

Abstract Mechanical properties of carbon nanotube (CNT)-based nanocomposites are broadly discussed in the literature. The influence of CNT arrangements on the elastic properties of nanocomposites based on the finite-element method (FEM) and representative volume element (RVE) approach is presented here. This study is an application of RVE modeling in the characterization of elastic behavior of CNT polymer nanocomposites. Our main contribution is the analysis of the impact of a nanotube arrangement on the elastic properties of nanocomposite to comprehensively determine the material constants. While most of the articles are focused on one distribution, not all material constants are determined. Our FEM analysis is compared with micromechanical models and other results from the literature. The current work shows that nanotube arrangements lead to different results of elastic properties. The analytical micromechanical models are consistent with the numerical results only for axial Young’s modulus and Poisson’s ratio, whereas other elastic constants are lower than the numerical predictions. The results of these studies indicate that FEM can predict nanocomposite mechanical properties with good accuracy. This article is helpful and useful to comprehensively understand the influence of CNT arrangements on the elastic properties of nanocomposites.

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