Navigation Links
Metal foam has a good memory
Date:12/20/2007

In the world of commercial materials, lighter and cheaper is usually better, especially when those attributes are coupled with superior strength and special properties, such as a material's ability to remember its original shape after it's been deformed by a physical or magnetic force.

A new class of materials known as "magnetic shape-memory foams" has been developed by two research teams headed by Peter Mllner at Boise State University and David Dunand at Northwestern University, both funded by the National Science Foundation (NSF).

The foam consists of a nickel-manganese-gallium alloy whose structure resembles a piece of Swiss cheese with small voids of space between thin, curvy "struts" of material. The struts have a bamboo-like grain structure that can lengthen, or strain, up to 10 percent when a magnetic field is applied. Strain is the degree to which a material deforms under load. In this instance, the force came from a magnetic field rather a physical load. Force from magnetic fields can be exerted over long range, making them advantageous for many applications. The alloy material retains its new shape when the field is turned off, but the magnetically sensitive atomic structure returns to its original structure if the field is rotated 90 degrees--a phenomenon called "magnetic shape-memory."

Making large single crystals of the alloy material is too slow and expensive to be commercially viable -- one of the reasons why gems are so costly -- so the researchers make polycrystalline alloys, which contain many small crystals or grains. Traditional polycrystalline materials are not porous and exhibit near zero strains due to mechanical constraints at the boundaries between each grain. In contrast, a single crystal exhibits a large strain as there are no internal boundaries. By introducing voids into the polycrystalline alloy, the researchers have made a porous material that has less internal mechanical constraint and exhibits a reasonably large d
'/>"/>

Contact: Diane Banegas
dbanegas@nsf.gov
703-292-4489
National Science Foundation  
Source:Eurekalert

Page: 1 2

Related biology news :

1. Scientists develop a fast system to detect metal concentrations in iron and steel industry workers
2. Memory machine
3. Memory molecule stores memories in neocortex
4. A balanced memory network
5. UCI researchers restore memory process in most common form of mental disability
6. Young chimps top adult humans in numerical memory
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Metal foam has a good memory
(Date:7/9/2015)...  Unchained Labs just can,t get enough biologics ... Nano. Avid Nano designs, develops and manufactures highly ... Also today, Unchained Labs UNcaged the pUNk, ... protein sizing system. The pUNk is a high-performance ... size distribution, aggregation population and molecular weight. Its ...
(Date:7/8/2015)... 2015 The consumer products industry for ... have products such as wearables, smart wallets & other smart ... based devices continues to rapidly grow.  Biometrics & Wearable Device ... ), Google Inc. (NASDAQ: GOOG ), Apple Inc. (NASDAQ: ... Inc. (NASDAQ: GPRO ) and Baidu Inc. (NASDAQ: ...
(Date:7/2/2015)... Research and Markets( http://www.researchandmarkets.com/research/jvft55/next_generation ... Generation Biometrics Market by Application, Technology, Function & Geography ... offering. The next generation biometrics market is ... CAGR of 17.9% between 2015 and 2020 ... market. Safran SA ( France ...
Breaking Biology News(10 mins):Unchained Labs just can't get enough, acquires Avid Nano, rocks out the new pUNk! 2Consumers Flock to This Summer's Must Have Tech Gadgets as Latest Digital Wallets, Smart Technology & Wearable Products Continue to Grow in Popularity & Functionality 2Consumers Flock to This Summer's Must Have Tech Gadgets as Latest Digital Wallets, Smart Technology & Wearable Products Continue to Grow in Popularity & Functionality 3Consumers Flock to This Summer's Must Have Tech Gadgets as Latest Digital Wallets, Smart Technology & Wearable Products Continue to Grow in Popularity & Functionality 4Consumers Flock to This Summer's Must Have Tech Gadgets as Latest Digital Wallets, Smart Technology & Wearable Products Continue to Grow in Popularity & Functionality 5Consumers Flock to This Summer's Must Have Tech Gadgets as Latest Digital Wallets, Smart Technology & Wearable Products Continue to Grow in Popularity & Functionality 6Next Generation Biometrics Market 2015 - Global Forecast to 2020 with Safran, NEC, 3M Cogent, Fujitsu & Suprema Dominating the $24 Billion Market 2Next Generation Biometrics Market 2015 - Global Forecast to 2020 with Safran, NEC, 3M Cogent, Fujitsu & Suprema Dominating the $24 Billion Market 3
... Program Organization (HFSPO) is pleased to announce that President ... are among the 7 recipients of the 2009 International ... of China. Their awards were presented at a ceremony ... Chinese President Hu Jintao, Prime Minister Wen Jiabao and ...
... By combining the tools of medicinal chemistry and ... compounds that may offer therapeutic leads for bone-related diseases ... Chemical Biology , support using zebrafish as a novel ... M.D., Ph.D., and colleagues described using fish embryos to ...
... A study published in today,s online edition the ... identification of a new form of adult onset muscular ... neurogeneticist at the Research Centre of the Centre hospitalier ... de Montral, in collaboration with European collaborators, demonstrated that ...
Cached Biology News:Zebrafish swim into drug development 2Zebrafish swim into drug development 3
(Date:7/27/2015)... , July 27, 2015 The ... the winners of its annual Klerman and Freedman ... scientists who have been supported by NARSAD Young ... to pursue innovative ideas in neurobiological and psychosocial ... concept for the early detection, treatment, prevention and ...
(Date:7/27/2015)... ... 27, 2015 , ... Visual Assay was named as a finalist for the ... technologies and services of the past year. More than 70 judges selected the finalists, ... will be announced at the 2015 R&D 100 Awards Dinner on November 13 at ...
(Date:7/24/2015)... Pa. , July 24, 2015 Ryan ... been filed in United States District Court for the Northern ... all persons or entities that purchased the common stock of ... ) between July 31, 2014 and June 15, 2015, inclusive ... than September 8, 2015, move the Court for appointment as ...
(Date:7/24/2015)... N.J. , July 24, 2015  Champions Oncology ... advanced technology solutions and services to personalize the development ... report its financial and operational results for the fourth ... on Tuesday, July 28, 2015, before market open. ... discuss the results that day at 9:00 a.m. EDT ...
Breaking Biology Technology:Brain & Behavior Research Foundation Names Winners of Klerman-Freedman Prizes for Exceptional Research 2Brain & Behavior Research Foundation Names Winners of Klerman-Freedman Prizes for Exceptional Research 3Brain & Behavior Research Foundation Names Winners of Klerman-Freedman Prizes for Exceptional Research 4Brain & Behavior Research Foundation Names Winners of Klerman-Freedman Prizes for Exceptional Research 5Brain & Behavior Research Foundation Names Winners of Klerman-Freedman Prizes for Exceptional Research 6Visual Assay® Named Finalist in 53rd Annual R&D 100 Awards 2Ryan & Maniskas, LLP Announces Class Action Lawsuit Against Avalanche Biotechnologies, Inc. 2Ryan & Maniskas, LLP Announces Class Action Lawsuit Against Avalanche Biotechnologies, Inc. 3Champions Oncology to Announce Fourth Quarter Financial Results on Tuesday, July 28 2
... ... The use of codon optimization in gene synthesis has long been misunderstood. ... awarded two US patents covering the technology. DNA2.0,s approach goes beyond codon ... optimization. The algorithm associated with this patent has been proven to increase ...
... DENVER, June 10 Building on the momentum of ... http://www.stemcellaware.com ) will hold the sixth Stem Cell Awareness ... group,s last event, in Punta Gorda, Florida, drew past ... as well as members of the public interested in ...
... 10 Strativa Pharmaceuticals, the proprietary products division of ... (NYSE: PRX ), today announced that the ... New Drug Application (NDA) for ondansetron orally dissolving film ... for the prevention of nausea and vomiting associated with ...
Cached Biology Technology:DNA2.0 Awarded US Patents for Breakthrough Gene Optimization Technology -- Company's Unique Algorithm Enables Expression Yields up to 50 Times Greater than Competing Approaches 2DNA2.0 Awarded US Patents for Breakthrough Gene Optimization Technology -- Company's Unique Algorithm Enables Expression Yields up to 50 Times Greater than Competing Approaches 3Colorado Stem Cell Awareness Rally to Take Place in Denver, Colorado on June 13th, 2009 2Colorado Stem Cell Awareness Rally to Take Place in Denver, Colorado on June 13th, 2009 3Strativa's New Drug Application for Ondansetron Orally Dissolving Film Strip Accepted by FDA 2Strativa's New Drug Application for Ondansetron Orally Dissolving Film Strip Accepted by FDA 3
... kit measures NOS activity by monitoring the ... assay is simple, sensitive, and specific for ... both crude and purified enzyme preparations. The ... 50 total reactions. Radiolabeled arginine and NADPH ...
Human TSLP MAb (Clone 258136)...
Human Complement Component C5a MAb (Clone 295003)...
Mouse Complement Component C5a Affinity Purified PAb...
Biology Products: