Highly negative Poisson's ratio in a flexible two-dimensional tungsten carbide monolayer

2018 ◽  
Vol 20 (28) ◽  
pp. 18924-18930 ◽  
Author(s):  
Donghai Wu ◽  
Shuaiwei Wang ◽  
Shouren Zhang ◽  
Jinyun Yuan ◽  
Baocheng Yang ◽  
...  
Keyword(s):  
Tungsten Carbide ◽  
Poisson’S Ratio ◽  
Poisson's Ratio ◽  
Negative Poisson’S Ratio ◽  
Two Dimensional ◽  
Negative Poisson's Ratio

A highly negative Poisson's ratio in a flexible 2D W2C sheet was found and its mechanism was proposed.

scholarly journals Giant negative Poisson’s ratio in two-dimensional V-shaped materials

2021 ◽  
Author(s):  
Xikui Ma ◽  
Jian Liu ◽  
Yingcai Fan ◽  
Weifeng Li ◽  
Jifan Hu ◽  
...  
Keyword(s):  
Poisson’S Ratio ◽  
Poisson's Ratio ◽  
Negative Poisson’S Ratio ◽  
Two Dimensional ◽  
Auxetic Materials ◽  
Negative Poisson's Ratio ◽  
Poisson's Ratios ◽  
Poisson’S Ratios

Two-dimensional (2D) auxetic materials with exceptional negative Poisson’s ratios (NPR) are drawing increasing interest due to the potentials in medicine, fasteners, tougher composites and many other applications. Improving the auxetic...

scholarly journals Monolayer Mg2C : Negative Poisson's ratio and unconventional two-dimensional emergent fermions

2018 ◽  
Vol 2 (10) ◽  
Author(s):  
Shan-Shan Wang ◽  
Ying Liu ◽  
Zhi-Ming Yu ◽  
Xian-Lei Sheng ◽  
Liyan Zhu ◽  
...  
Keyword(s):  
Poisson’S Ratio ◽  
Poisson's Ratio ◽  
Negative Poisson’S Ratio ◽  
Two Dimensional ◽  
Negative Poisson's Ratio

scholarly journals Design and Prediction of a Novel Two-Dimensional Carbon Nanostructure with In-Plane Negative Poisson’s Ratio

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Kun Yuan ◽  
Meng-Yang Li ◽  
Yan-Zhi Liu ◽  
Ren-Zhong Li
Keyword(s):  
Mechanical Properties ◽  
Poisson’S Ratio ◽  
Density Functional ◽  
Mechanical Stability ◽  
Poisson's Ratio ◽  
Negative Poisson’S Ratio ◽  
Two Dimensional ◽  
Carbon Nanostructure ◽  
Ratio Effect ◽  
Negative Poisson's Ratio

The intrinsic negative Poisson’s ratio effect in 2-dimensional nanomaterials have attracted a lot of research interests due to its superior mechanical properties, and new mechanisms have emerged in the nanoscale. In this paper, we designed a novel graphyne-like two-dimensional carbon nanostructure with a “butterfly” shape (GL-2D-1) and its configuration isomer with a “herring-bone” form (GL-2D-2) by means of density functional theoretical calculation and predicted their in-plane negative Poisson’s ratio effect and other mechanical properties. Both GL-2D-1 and GL-2D-2 present a significant negative Poisson’s ratio effect under different specific strains conditions. By contrast, GL-2D-2 presents a much stronger negative Poisson’s ratio effect and mechanical stability than does GL-2D-1. It is hoped that this work could be a useful structural design strategy for the development of the 2D carbon nanostructure with the intrinsic negative Poisson’s ratio.

Two-dimensional vanadium tetrafluoride with antiferromagnetic ferroelasticity and bidirectional negative Poisson's ratio

2021 ◽  
Vol 9 (1) ◽  
pp. 95-100
Author(s):  
Lei Zhang ◽  
Cheng Tang ◽  
Aijun Du
Keyword(s):  
Poisson’S Ratio ◽  
Poisson's Ratio ◽  
Negative Poisson’S Ratio ◽  
Two Dimensional ◽  
2D Material ◽  
Negative Poisson's Ratio

A new 2D material (VF4) integrated with AFM–FA coupling and sizable bidirectional auxeticity is highlighted which could be accessible from its layered bulk counterpart.

Design and fabrication of auxetic warp-knitted structures with a rotational hexagonal loop

2016 ◽  
Vol 86 (20) ◽  
pp. 2151-2157 ◽  
Author(s):  
Pibo Ma ◽  
Yuping Chang ◽  
Gaoming Jiang
Keyword(s):  
Poisson’S Ratio ◽  
Rotation Angle ◽  
Hexagonal Structure ◽  
Poisson's Ratio ◽  
Negative Poisson’S Ratio ◽  
Two Dimensional ◽  
Auxetic Structures ◽  
Negative Poisson's Ratio ◽  
Novel Structures

In this paper, the design, manufacturing and characterization of two-dimensional warp-knitted textiles with auxetic performance is reported. Four warp-knitted structures based on a rotational hexagonal structure are produced, and these structures can lead to a negative Poisson’s ratio mathematically. The testing results have confirmed that the knitting structure of the front bar, as well as let-off values of the front bar’s chain parts, has a great effect, and auxetic properties of the warp-knitted textiles have a complicated relationship with the rotation angle. These novel structures can expand the applied area of auxetic structures.

Two-Dimensional Be2C with Octacoordinate Carbons and Negative Poisson’s Ratio

2018 ◽  
Vol 122 (14) ◽  
pp. 7959-7967 ◽  
Author(s):  
Shifeng Qian ◽  
Xiaowei Sheng ◽  
Yong Zhou ◽  
Xiaozhen Yan ◽  
Yangmei Chen ◽  
...  
Keyword(s):  
Poisson’S Ratio ◽  
Poisson's Ratio ◽  
Negative Poisson’S Ratio ◽  
Two Dimensional ◽  
Negative Poisson's Ratio

δ-Phosphorene: a two dimensional material with a highly negative Poisson's ratio

Nanoscale ◽  
2017 ◽  
Vol 9 (2) ◽  
pp. 850-855 ◽  
Author(s):  
Haidi Wang ◽  
Xingxing Li ◽  
Pai Li ◽  
Jinlong Yang
Keyword(s):  
Poisson’S Ratio ◽  
Poisson's Ratio ◽  
Negative Poisson’S Ratio ◽  
Two Dimensional ◽  
Negative Poisson's Ratio

A novel SiO monolayer with a negative Poisson's ratio and Dirac semimetal properties

2020 ◽  
Vol 22 (35) ◽  
pp. 20107-20113
Author(s):  
Hui Du ◽  
Guoling Li ◽  
Jiao Chen ◽  
Zhenlong Lv ◽  
Yuanzheng Chen ◽  
...  
Keyword(s):  
Physical Properties ◽  
Poisson’S Ratio ◽  
2D Materials ◽  
Poisson's Ratio ◽  
Negative Poisson’S Ratio ◽  
Two Dimensional ◽  
2D Material ◽  
Dirac Semimetal ◽  
Negative Poisson's Ratio

Although a number of interesting physical properties such as a negative Poisson's ratio (NPR) and Dirac semimetal (DS) properties have been recently predicted in two-dimensional (2D) materials, the realization of a 2D material that exhibit both of these DS and NPR features has rarely been reported.

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