Navigation Links
Stressed nanomaterials display unexpected movement
Date:2/23/2010

ries do not move, a characteristic that helps the material resist deformation. But when Hemker and his colleagues performed experiments on nanocrystalline aluminum thin films, applying a type of force called shear stress, they found an unexpected result. "We saw that the grains had grown bigger, which can only occur if the boundaries move," he said, "and the most surprising part of our observation was that it was shear stress that had caused the boundaries to move."

"The original view," Hemker said, "was that these boundaries were like the walls inside of a house. The walls and the rooms they create don't change size; the only activity is by people moving around inside the room. But our experiments showed that in these nanomaterials, when you apply a particular type of force, the rooms do change size because the walls actually move."

The discovery has implications for those who use thin films and other nanomaterials to make integrated circuits and microelectromechanical systems, commonly called MEMS. The boundary movement shown by Hemker and his colleagues means that the nanomaterials used in these products likely possess more plasticity, higher reliability and less brittleness, but also reduced strength.

"As we move toward making things at much smaller sizes, we need to take into account how activity at the atomic level affects the mechanical properties of the material," Hemker said. "This knowledge can help the microdevice makers decide on the proper size for their components and can lead to better predictions about how long their products will last."


'/>"/>

Contact: Phil Sneiderman
prs@jhu.edu
443-287-9960
Johns Hopkins University
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. Miami Beach Real Estate Attorney Opens Miami Real Estate Brokerage for International Luxury Miami Beach Condo Buyers From Distressed Sellers
2. EPA announces research strategy to study nanomaterials
3. Quantum dots and nanomaterials: Ingredients for better lighting and more reliable power
4. NPL to create encyclopedia for space nanomaterials
5. Nanomaterials show unexpected strength under stress
6. NanoMaterials Technology to Conduct Process Development Feasibility Study with US Based Emerging Pharmaceutical Company
7. Therapeutic Cells Derived From Reprogrammed (iPS) Stem Cells Display Early Aging
8. Greenway Medical Technologies To Display Live Interoperability Implementations at 2009 DIA Show
9. TrueVision Adds 3D Flat Panel Displays to its Visualization Platform for Refractive-Cataract Surgery
10. American Society of Anesthesiologists Primary Agenda Displayed Says Dr. Barry Friedberg of Cosmetic Surgery Anesthesia
11. Managing Risk Through Quality: Ansell Healthcares Innovative Gammex(R) Glove Range on Display at Arab Health 2009
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Stressed nanomaterials display unexpected movement
(Date:7/1/2015)... , ... July 01, 2015 , ... It is now ... (TBI) using single photon emission computed tomography (SPECT) according to researchers from ... which examined over 20,000 brain scans and is believed to be the largest brain ...
(Date:7/1/2015)... ... July 01, 2015 , ... The next-generation sequencing (NGS) clinical market is poised ... molecular diagnostics industry. BCC Research reveals in its new report that the market drivers ... and a growing need for better diagnostics as part of a molecular diagnostics trend. ...
(Date:7/1/2015)... HAMILTON, Bermuda , July 1, 2015 /PRNewswire/ ... biopharmaceutical company focused on the treatment of dementia, ... investor briefing on July 22 at 5:45 p.m. ... at the Alzheimer,s Association International Conference 2015 (AAIC). ... following remarks: , Dr. Lawrence ...
(Date:7/1/2015)... InferMed , s ... will augment ... s olutions suite   Elsevier , ... and services, announced today the acquisition of  InferMed , a ... company. InferMed,s Arezzo technology supports clinicians in choosing ...
Breaking Biology Technology:Brain Scans Can Tell Post-Traumatic Stress Disorder and Traumatic Brain Injury Apart According to New Research by Amen Clinics 2Brain Scans Can Tell Post-Traumatic Stress Disorder and Traumatic Brain Injury Apart According to New Research by Amen Clinics 3Brain Scans Can Tell Post-Traumatic Stress Disorder and Traumatic Brain Injury Apart According to New Research by Amen Clinics 4NGS-Based Diagnostics, the ‘Must-Have Platform’, Sends Market Segment CAGRs Soaring According to BCC Research 2NGS-Based Diagnostics, the ‘Must-Have Platform’, Sends Market Segment CAGRs Soaring According to BCC Research 3Axovant Sciences To Host Investor Briefing And Live Webcast During AAIC 2015 Meeting 2Axovant Sciences To Host Investor Briefing And Live Webcast During AAIC 2015 Meeting 3Elsevier Acquires InferMed, Provider of Clinical Decision Support Technology 2Elsevier Acquires InferMed, Provider of Clinical Decision Support Technology 3Elsevier Acquires InferMed, Provider of Clinical Decision Support Technology 4
... to announce,that their new, unique immunoassay Rat/Mouse PINP- the ... I collagen levels in rodent,specimens*, is now available., ... to allow the,specific assessment of type I collagen levels ... the assessment of new osteoporosis drug candidates,in pre-clinical studies ...
... Cell Therapeutics, Inc.,(CTI) (Nasdaq and MTAX: CTIC) ... e la Borsa ("CONSOB") granted authorization to,publish the ... by Article 8 and Article 56 of the ... common stock representing more than 10% of,the shares ...
... Dec. 2008, ATLANTA, Jan. 11 Cryolife, Inc., ... tissue has once again severely,maimed an elective knee surgery ... Shockingly the same deadly,organism that devastated Mr. Hohenbery took ... The Lykins, death, another of the Keenan Law ...
Cached Biology Technology:A New, Unique and Unrivalled Rat/Mouse PINP Assay for Pharmaceutical, Clinical and Academic Research Organizations. 2Cell Therapeutics, Inc. Announces Authorization to Publish Italian Listing Prospectus 2Cell Therapeutics, Inc. Announces Authorization to Publish Italian Listing Prospectus 3Cryolife Once Again Severely Maims an Innocent Knee Surgery Patient 2
(Date:6/10/2015)... , June 10, 2015 ... "3D Sensor Market by Technology (Ultrasound, TOF, Structured ... (consumer Electronics, Entertainment, Automotive) and by Geography - ... by MarketsandMarkets, the market is expected to reach ... of 25.51% between 2015 and 2020. ...
(Date:6/9/2015)... , June 09, 2015 Research and ... of the "Gesture Recognition & Touchless Sensing ... Electronics, Automotive, & Others), Product (Biometric & Sanitary ... 2020" report to their offering. ... is expected to reach $ 23.55 Billion by ...
(Date:6/8/2015)... WASHINGTON , June 8, 2015  The ... announced today their selection of Troy Potter ... Chairman, effective immediately. SIBA is a non-profit association ... promote responsible policy, education and implementation of solutions ... public platforms. ...
Breaking Biology News(10 mins):3D Sensor Market Worth $3,319.71 Million by 2020 23D Sensor Market Worth $3,319.71 Million by 2020 33D Sensor Market Worth $3,319.71 Million by 2020 4Global Gesture Recognition & Touchless Sensing (Technology, Application & Products) Market 2015-2020 2Secure Identity & Biometrics Association (SIBA) Names Troy Potter of L-3 National Security Solutions as Chairman 2Secure Identity & Biometrics Association (SIBA) Names Troy Potter of L-3 National Security Solutions as Chairman 3Secure Identity & Biometrics Association (SIBA) Names Troy Potter of L-3 National Security Solutions as Chairman 4Secure Identity & Biometrics Association (SIBA) Names Troy Potter of L-3 National Security Solutions as Chairman 5
... Washington D.C. Researchers at the U.S. Department ... today a major breakthrough in engineering systems of ... to important improvements across a range of industries, ... will use these new "RNA machines", to adjust ...
... - Drugs used to overcome cancer may also combat ... Wright, scientific director of the Michael G. DeGroote Institute ... study found that certain proteins, called kinases, that confer ... cancer," says Wright about the study published in Chemistry ...
... Albert Einstein College of Medicine of Yeshiva ... control the survival of messenger RNA ( mRNA ) arguably ... help regulate cell division and could therefore have implications for ... today,s online edition of the journal Cell . , ...
Cached Biology News:DOE researchers achieve important genetic breakthroughs to help develop cheaper biofuels 2Built-in 'self-destruct timer' causes ultimate death of messenger RNA in cells 2Built-in 'self-destruct timer' causes ultimate death of messenger RNA in cells 3
A univariate (peak height or area) quantitative multi-component analysis package....
... Antigen sequence: H-Ala-Cys-Asp-Thr-Ala-Thr-Cys-Val-Thr-His-Arg-Leu-Ala-Gly-Leu-Leu-Ser-Arg-Ser-Gly-Gly-Val-Val-Lys-Asn-Asn-Phe-Val-Pro-Thr-Asn-Val-Gly-Ser-Lys-Ala-Phe-NH 2 ... our corresponding peptide and ... 5 I-labelled peptide, ... (H-1470) and ([ 1 ...
... is a dramatic breakthrough in accurate, small-volume bulk ... resolution, the micro 1 has unique advantages not ... micro 1 never needs re-calibration as do other ... on an LCD Display , Graphical Row Selection ...
... expression profiling allows a high-throuput screening of ... occuring or artifitially induced changes in the ... system can be detected, studied, classified and ... range of genes at a glance. Automatized ...
Biology Products: