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Search results for negative poisson's ratio

General Âé¶¹ÒùÔºics Dec 9, 2019

Shape-programmable dielectric liquid crystal elastomer actuators

Materials scientists aim to use bioinspired soft robots to carry out advanced interactions between humans and robots, but the associated technology remains to be developed. For example, soft actuators must perform quickly ...

Bio & Medicine Dec 4, 2019

Auxetic membranes: Paradoxical replacement tissue for medicine

A material that thickens when you pull on it seems to contradict the laws of physics. However, the so-called auxetic effect, which also occurs in nature, is interesting for a number of applications. A new Empa study recently ...

Materials Science May 21, 2019

3-D grayscale digital light printing (g-DLP) highly functionally graded materials (FGM)

Three-dimensional (3-D) printing or additive manufacture (AM) is a popular technique that has presently attracted tremendous attention as a promising method to revolutionize design and manufacture. Researchers have expanded ...

Materials Science Feb 14, 2019

Researchers create ultra-lightweight ceramic material that withstands extreme temperatures

UCLA researchers and collaborators at eight other research institutions have created an extremely light, very durable ceramic aerogel. The material could be used for applications like insulating spacecraft because it can ...

Materials Science Dec 11, 2018

Field-responsive mechanical metamaterials (FRMMs)

In a recent study published in Science Advances, materials scientists Julie A. Jackson and colleagues presented a new class of materials architecture called field-responsive mechanical metamaterials (FRMM). The FRMMs exhibit ...

Materials Science Sep 4, 2018

4-D printing reversible shape changing materials with light-based grayscale patterning

Reversible shape change is a highly desirable property for many biomedical applications, including mechanical actuators, soft robotics and artificial muscles. Some materials can change size or shape when irradiated with light, ...

Robotics Aug 8, 2018

Army's new 3-D printed shape-shifting soft robots crawl, jump, grab

New 3-D printed robotic structures can squeeze in tight spaces like a crack in the wall of a cave, jump over trip wire or crawl under a vehicle—all complex Army-relevant functions impossible for humans to perform safely.

Nanomaterials Apr 19, 2018

Graphene changes elastic properties depending on applied force

A group of scientists, including specialists from Landau Institute for Theoretical Âé¶¹ÒùÔºics (ITF), has described a universal characteristic in which many unique graphene properties are "hidden." Abnormal graphene behavior ...

Materials Science Jan 3, 2018

Researchers develop hybrid meta-biomaterial that can prolong lifespan of hip implants

A hybrid meta-biomaterial that promotes bone growth is not something you will find in nature, but it can be created using a 3-D printer and existing biomaterials. TU Delft researchers have developed a meta-implant that combines ...

Nanomaterials Oct 6, 2016

Exotic property confirmed in natural material could lead to fundamental studies

Researchers have confirmed the existence of a naturally occurring exotic property in which a material becomes thicker when stretched - the opposite of most materials - a discovery that could lead to new studies into the fundamental ...

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