Navigation Links
Rutgers researchers identify materials that may deliver more 'bounce'
Date:3/9/2011

NEW BRUNSWICK, N.J. Rutgers researchers have identified a class of high-strength metal alloys that show potential to make springs, sensors and switches smaller and more responsive.

The alloys could be used in springier blood vessel stents, sensitive microphones, powerful loudspeakers, and components that boost the performance of medical imaging equipment, security systems and clean-burning gasoline and diesel engines.

While these nanostructured metal alloys are not new they are used in turbine blades and other parts demanding strength under extreme conditions the Rutgers researchers are pioneers at investigating these new properties.

"We have been doing theoretical studies on these materials, and our computer modeling suggests they will be super-responsive," said Armen Khachaturyan, professor of Materials Science and Engineering in the Rutgers School of Engineering. He and postdoctoral researcher Weifeng Rao believe these materials can be a hundred times more responsive than today's materials in the same applications.

Writing in the March 11 issue of the journal Physical Review Letters, the researchers describe how this class of metals with embedded nanoparticles can be highly elastic, or "springy," and can convert electrical and magnetic energy into movement or vice-versa. Materials that exhibit these properties are known among scientists and engineers as "functional" materials.

One class of functional materials generates an electrical voltage when the material is bent or compressed. Conversely, when the material is exposed to an electric field, it will deform. Known as piezoelectric materials, they are used in ultrasound instruments; audio components such as microphones, speakers and even venerable record players; autofocus motors in some camera lenses; spray nozzles in inkjet printer cartridges; and several types of electronic components.

In another class of functional materials, changes in magnetic fields deform the material and vice-versa. These magnetorestrictive materials have been used in naval sonar systems, pumps, precision optical equipment, medical and industrial ultrasonic devices, and vibration and noise control systems.

The materials that Khachaturyan and Rao are investigating are technically known as "decomposed two-phase nanostructured alloys." They form by cooling metals that were exposed to high temperatures at which the nanosized particles of one crystal structure, or phase, are embedded into another type of phase. The resulting structure makes it possible to deform the metal under an applied stress while allowing the metal to snap back into place when the stress is removed.

These nanostructured alloys might be more effective than traditional metals in applications such blood vessel stents, which have to be flexible but can't lose their "springiness." In the piezoelectric and magnetorestrictive components, the alloy's potential to snap back into shape after deforming a property known as non-hysteresis could improve energy efficiency over traditional materials that require energy input to restore their original shapes.

In addition to potentially showing responses far greater than traditional materials, the new materials may be tunable; that is, they may exhibit smaller or larger shape changes and output force based on varying mechanical, electrical or magnetic input and the material processing.

The researchers hope to test the results of their computer simulations on actual metals in the near future.


'/>"/>

Contact: Carl Blesch
cblesch@ur.rutgers.edu
732-932-7084 x616
Rutgers University
Source:Eurekalert  

Related biology technology :

1. Rutgers discovery paves way for development of efficient, inexpensive plastic solar cells
2. Rutgers University Cell and DNA Repository Adopts BioLife Solutions CryoStor(TM) as Standard Biopreservation Media
3. Researchers use genomics to investigate TB outbreak
4. Quantum hot potato: NIST researchers entice 2 atoms to swap smallest energy units
5. Researchers get a grip on nervous systems receptors
6. Researchers at Harvard and MITRE produce worlds first programmable nanoprocessor
7. Size of airborne flu virus impacts risk, Virginia Tech researchers say
8. What a ride! Researchers take molecules for a spin
9. Practice Fusion Invites Health Researchers to Analyze This! Contest on Windows Azure
10. Columbia University researchers use nanoscale transistors to study single-molecule interactions
11. Researchers visualize herpes virus tactical maneuver
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Rutgers researchers identify materials that may deliver more 'bounce'
(Date:8/15/2017)... ... August 15, 2017 , ... JULABO USA introduces its ... new website makes it easy to navigate through the site whether you’re in ... detailed product information, educational industry content and visit the company’s social media accounts, ...
(Date:8/11/2017)... ... August 11, 2017 , ... A staple in the ... month that will incorporate important key elements including a new digital marketing strategy and ... has supported them, Bill Miller has partnered with the South Texas Blood & Tissue ...
(Date:8/10/2017)... (PRWEB) , ... August 09, 2017 , ... ... regenerative medicine applications in the clinic is here. The team at Capricor Therapeutics, ... in conditioned medium for clinical studies. , Dr. Travis Antes, head of ...
(Date:8/10/2017)... ... August 10, 2017 , ... SPIE, ... Company Ltd. as its exclusive sales representative for SPIE Journals in Japan. Kinokuniya ... SPIE Digital Library in Japan. , “We look forward to expanding our relationship ...
Breaking Biology Technology:
(Date:4/11/2017)... NXT-ID, Inc. (NASDAQ:   NXTD ) ... appointment of independent Directors Mr. Robin D. Richards ... Directors, furthering the company,s corporate governance and expertise. ... Gino Pereira , Chief Executive ... their guidance and benefiting from their considerable expertise as we ...
(Date:4/5/2017)... -- KEY FINDINGS The global market for ... of 25.76% during the forecast period of 2017-2025. The ... the growth of the stem cell market. ... INSIGHTS The global stem cell market is segmented on ... stem cell market of the product is segmented into ...
(Date:3/30/2017)... KONG , March 30, 2017 The ... a system for three-dimensional (3D) fingerprint identification by adopting ground breaking ... into a new realm of speed and accuracy for use in ... at an affordable cost. ... ...
Breaking Biology News(10 mins):