Navigation Links
How shape-memory materials remember
Date:4/26/2010

X-ray studies and fundamental calculations are helping physicists gain molecular level insight into the workings of some magnetic shape-memory materials, which change shape under the influence magnetic fields. Shape-memory materials could potentially serve as light weight, compact alternatives to conventional motors and actuators. But developing practical devices will require creating materials that exhibit much larger changes in shape than most of the known shape-memory materials. A paper appearing in the April 25 issue of Physical Review Letters reports on the efforts of a team of Japanese physicists who probed the changes in a magnetic shape-memory material at the molecular scale. The work is highlighted with a Viewpoint article by Antoni Planes (Universitat de Barcelona) in the April 25 edition of APS Physics (physics.aps.org).

The new research focused on a shape-memory alloy made up of nickel, manganese and tin. In its ideal form, the alloy is a crystal with each element occupying specific crystal locations relative to one another. In some versions, however, excess manganese atoms replace some of the tin atoms. Although the compositional change is slight, it can have significant effects on the alloy's behavior. X-ray spectroscopy allowed the researchers to observe the microscopic characteristics of the alloy to see precisely how the excess manganese atoms affect the alloy's behavior.

By studying the way that composition affects a shape-memory material, and comparing measurements to theoretical calculations, it will be possible to understand what makes the materials work, and allow physicists to develop new and improved varieties shape-changing metals.


'/>"/>

Contact: James Riordon
riordon@aps.org
301-209-3238
American Physical Society
Source:Eurekalert

Page: 1

Related biology technology :

1. Materials research advances reliability of faster smart sensors
2. RCSB PDB Teams with OpenHelix to Announce Free Tutorial and Training Materials
3. The Protein Structure Initiative announces free OpenHelix tutorial and training materials for the Structural Genomics Knowledgebase (SGKB)
4. Materials Design client wins 2 GM Innovation Awards
5. Lithium-ion anode uses self-assembled nanocomposite materials to increase capacity
6. A number of European companies working together to create innovative facades with nanomaterials
7. Princeton scientists find an equation for materials innovation
8. Stressed nanomaterials display unexpected movement
9. Metamaterials could reduce friction in nanomachines
10. Water droplets direct self-assembly process in thin-film materials
11. £4.9 million to develop metamaterials for invisibility cloaks and perfect lenses
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/7/2017)... ... October 06, 2017 , ... Phase ... metagenome deconvolution product, featuring the first commercially available Hi-C kit. Researchers can ... Hi-C metagenome deconvolution using their own facilities, supplementing the company’s full-service ProxiMeta ...
(Date:10/6/2017)... ... October 06, 2017 , ... The HealthTech Venture ... sector at their fourth annual Conference where founders, investors, innovative practitioners and collaborators ... ELEVATE pitch competition showcasing early stage digital health and med tech companies. , ...
(Date:10/5/2017)... CA (PRWEB) , ... October 05, 2017 , ... ... engineers, and scientists from around the world, is giving back to cancer research with ... in October. , Now through October 31, shoppers can use promo code PinkRibbon ...
(Date:10/5/2017)... ... October 05, 2017 , ... NIH has ... its Nanobind DNA/RNA extraction technology . Nanobind is a novel magnetic disk ... and that can be used for a wide variety of sample preparation applications. ...
Breaking Biology Technology:
(Date:7/20/2017)... DAL ) customers now can use fingerprints instead of their boarding ... ... biometrics to board aircraft at Reagan Washington National Airport ... Delta,s biometric boarding pass experience that launched in May at the ... to allow eligible Delta SkyMiles Members who are enrolled in CLEAR to ...
(Date:5/23/2017)... Italy , May 23, 2017  Hunova, the first robotic gym ... trunk, has been officially launched in Genoa, Italy . ... Europe and the USA . The technology ... on the market by the IIT spin-off Movendo Technology thanks to a ... the Multimedia News Release, please click: ...
(Date:4/24/2017)... Janice Kephart , former 9/11 ... Partners, LLP (IdSP) , today issues the following ... March 6, 2017 Executive Order: Protecting the ... be instilled with greater confidence, enabling the reactivation ... applications are suspended by until at least July ...
Breaking Biology News(10 mins):