Nanotechnology Now

Our NanoNews Digest Sponsors


Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Diamond-like tip better than the best

Abstract:
German and US researchers have produced a super-sharp, strong, and resilient carbon tip that has earned top place as the industry's current benchmark.

Diamond-like tip better than the best

EU | Posted on March 2nd, 2010

Funded by the EU, the diamond-like tip is 3,000 times more wear-resistant at the nanoscale than a silicon oxide tip, making it ideal for use in atomic imaging, probe-based data storage, and other emerging applications. Findings from the study are published in the journal Nature Nanotechnology.

The research was part of PROTEM ('Probe-based terabit memory'), a project that received EUR 5.3 million under the 'Information society technologies' (IST) Thematic area of the Sixth Framework Programme (FP6). Collaborators on the current study include IBM Research-Zurich in Switzerland, and the US-based University of Pennsylvania and University of Wisconsin.

In their paper, the authors write that greater 'understanding of friction and wear at the nanoscale [the length scale applicable to nanotechnology] is important for many applications that involve nanoscale components sliding on a surface'. These emerging applications include nanolithography, nanometrology and nanomanufacturing.

Diamond-like carbon, they explain, is often used as a surface coating in certain types of applications that require low friction and wear because of its resistance to wear at the macroscale. Until now, the issue has always been the material's resilience to wear at the nanoscale because manufacturing diamond-like carbon structures with nanoscale precision is complex.

Another key difference between the macroscale and the nanoscale is that defects, cracks and other conditions that control material strength and wear at macroscopic scales are not as important at the nanoscale.

The new nano-sized tip produced by the researchers wears away at a significantly lower rate than that of a silicon oxide tip (the current state of the art). At a rate of one atom per micrometer of sliding on a substrate of silicon dioxide, the material has now set a new standard.

'[The diamond-like carbon material] is known to possess low friction in humid conditions, and we find that, at the nanoscale, it is three orders of magnitude more wear-resistant than silicon under ambient conditions,' they conclude.

The tip comprises carbon, hydrogen, silicon and oxygen, all combined together on the end of a silicon microcantilever (used in atomic force microscopy). Instead of simply coating the tip with wear-resistant materials, the scientists developed the material from scratch. They used a molding technique to produce the tips on the silicon microcantilevers, and a bulk processing technique that would allow for mass commercial manufacturing in the future.

For more information, please visit:

Nature Nanotechnology: www.nature.com/nnano/index.html

PROTEM project: www.protem-fp6.org/

IBM Research-Zürich: www.zurich.ibm.com/

Document Reference: Bhaskaran, H., et al. (2010) Ultralow nanoscale wear through atom-by-atom attrition in silicon-containing diamond-like carbon. Nature Nanotechnology (published online 31 January 2010). DOI: 10.1038/NNANO.2010.3.

####

About CORDIS
CORDIS, the Community Research and Development Information Service, is a free service provided by the Office for Official Publications of the European Communities.

It is dedicated to promoting participation in the EU research programmes and to facilitating the uptake of European research results by industry. The service contributes to achieve the strategic goal of the European Union to become the most competitive knowledge based economy in the world by 2010.

For more information, please click here

Copyright © CORDIS

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Building a smart cardiac patch: 'Bionic' cardiac patch could one day monitor and respond to cardiac problems June 28th, 2016

New, better way to build circuits for world's first useful quantum computers June 28th, 2016

Yale researchers’ technology turns wasted heat into power June 27th, 2016

FEI Launches Helios G4 DualBeam Series for Materials Science: The Helios G4 DualBeam Series features new capabilities to enable scientists and engineers to answer the most demanding and challenging scientific questions June 27th, 2016

Govt.-Legislation/Regulation/Funding/Policy

Nanoscientists develop the 'ultimate discovery tool': Rapid discovery power is similar to what gene chips offer biology June 25th, 2016

Ultrathin, flat lens resolves chirality and color: Multifunctional lens could replace bulky, expensive machines June 25th, 2016

Particle zoo in a quantum computer: First experimental quantum simulation of particle physics phenomena June 23rd, 2016

Titan shines light on high-temperature superconductor pathway: Simulation demonstrates how superconductivity arises in cuprates' pseudogap phase June 22nd, 2016

Nanoelectronics

Soft decoupling of organic molecules on metal June 23rd, 2016

Tailored DNA shifts electrons into the 'fast lane': DNA nanowire improved by altering sequences June 22nd, 2016

Scientists engineer tunable DNA for electronics applications June 21st, 2016

Novel energy inside a microcircuit chip: VTT developed an efficient nanomaterial-based integrated energy June 10th, 2016

Announcements

Building a smart cardiac patch: 'Bionic' cardiac patch could one day monitor and respond to cardiac problems June 28th, 2016

New, better way to build circuits for world's first useful quantum computers June 28th, 2016

Yale researchers’ technology turns wasted heat into power June 27th, 2016

FEI Launches Helios G4 DualBeam Series for Materials Science: The Helios G4 DualBeam Series features new capabilities to enable scientists and engineers to answer the most demanding and challenging scientific questions June 27th, 2016

Tools

FEI Launches Helios G4 DualBeam Series for Materials Science: The Helios G4 DualBeam Series features new capabilities to enable scientists and engineers to answer the most demanding and challenging scientific questions June 27th, 2016

Nanoscientists develop the 'ultimate discovery tool': Rapid discovery power is similar to what gene chips offer biology June 25th, 2016

Ultrathin, flat lens resolves chirality and color: Multifunctional lens could replace bulky, expensive machines June 25th, 2016

Researchers discover new chemical sensing technique: Technique allows sharper detail -- and more information -- with near infrared light June 24th, 2016

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







Car Brands
Buy website traffic