Search results for negative poisson's ratio

Analytical Chemistry May 31, 2024

A new way of designing auxetic materials

Imagine pulling on the long ends of a rectangular piece of rubber. It should become narrower and thinner. But what if it instead became wider and fatter? Now, push in on those same ends. What if the rubber became narrower ...

Nanomaterials Dec 7, 2023

Metamaterials and origamic metal-organic frameworks

Origami is a paper folding process usually associated with child's play mostly to form a paper-folded crane, yet it is, as of recently a fascinating research topic. Origami-inspired materials can achieve mechanical properties ...

Polymers Nov 30, 2023

Researchers use architected auxetics to achieve 300 times more flexibility in new 3D printing design

There are young children celebrating the holidays this year with their families, thanks to the 3D-printed medical devices created in the lab of Georgia Tech researcher Scott Hollister. For more than 10 years, Hollister and ...

General Physics Aug 23, 2022

Researchers unfold elegant equations to explain the enigma of expanding origami

Most materials—from rubber bands to steel beams—thin out as they are stretched, but engineers can use origami's interlocking ridges and precise folds to reverse this tendency and build devices that grow wider as they ...

Optics & Photonics Mar 14, 2022

Distortion-free, stretchable micro-LED meta-display technology

The Korea Institute of Machinery and Materials (KIMM) has successfully developed the first stretchable meta-display technology that can be stretched up to 25% without image distortion. The results are published in Advanced ...

General Physics Dec 20, 2021

Reentrant tensegrity: An auxetic, three-periodic, chiral tensegrity structure

In a new report now published in Science Advances, Mathias Oster, and a team of scientists at the Institute for Mathematics at the Berlin Institute of Technology and the School of Engineering at the University of Edinburg ...

Mathematics Aug 13, 2021

New algorithm can help improve cellular materials design

New research published in Scientific Reports has revealed that a simple but robust algorithm can help engineers to improve the design of cellular materials that are used in a variety of diverse applications ranging from defense, ...

Materials Science May 6, 2021

2D materials offer unique stretching properties

Like most materials, an elastic band gets thinner when it is stretched. But some materials behave in the opposite way—they grow thicker when stretched and thinner when compressed. These counterintuitive substances, known ...

Nanomaterials Mar 5, 2021

Compression or strain—the material always expands

An international research team led by chemist Prof. Thomas Heine of TU Dresden has discovered a new two-dimensional material with unprecedented properties: regardless of whether it is strained or compressed, it always expands. ...

Materials Science Nov 11, 2020

Researchers make theoretical prediction of 2-D semiconductor tin dioxide

Recently, Prof. Zheng Xiaohong's research group from the Institute of Solid State Physics (ISSP) of the Hefei Institute of Physical Science (HFIPS) predicted a new two-dimensional (2-D) tin dioxide (SnO2) monolayer phase ...

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