Nanotechnology Now

Our NanoNews Digest Sponsors


Heifer International

Wikipedia Affiliate Button

Home > Press > Iran's Nano Scientists Improve Fricative Properties of Aluminum Alloys

Abstract:
Iranian researchers at Isfahan University of Technology improved the fricative properties of mostly-used aluminum alloys through a novel method by using nanocomposites.

Iran's Nano Scientists Improve Fricative Properties of Aluminum Alloys

Iran | Posted on November 23rd, 2010

"Al2024 alloy is known as one of the most used aluminum alloys, especially in aerospace industry. However, it does not have desirable fricative properties just like other aluminum alloys. We improved the properties of the alloy by creating a nanocomposite layer on its surface," Babak Zahmatkesh, one of the researchers, told the news service of Iran Nanotechnology Initiative Council's website.

After preliminary studies, the researchers designed an appropriate tool for the friction stir process and optimized the parameters of the process. Then, they produced Al-10% Al2O3 nanocomposite powder through mechanical alloying and applied the powder on the surface of the base metal during a plasma heat spraying process.

The combination of plasma heat spraying process and friction stir process used in this research solves the problems in the previous methods during the coating with strengthening particles.

In the previous methods, there were observed various problems such as severe aggregation, impossibility of the extension of the strengthened zone on the plate surface, non-homogeneity in the thickness of the strengthening layer, formation of pores and limitations in the thickness of the strengthened layer.

"The results show that the strengthening particles have diffused homogeneously into the sub-layer and the average thickness of the nanocomposite layer is 600 micrometers," Eng Zahmatkesh said about the results obtained in the research.

"In addition, the nanocomposite sample has a higher resistance against friction in comparison with the base metal to the extent that the amounts of weight reduction at the end of the friction experiment (1000 m) were 37.7 mg for the base metal and only 4 mg for the nanocomposite sample. The results of micro-resistance test show a noticeable increase in the hardness of nanocomposite compared to that of the base metal," he added.

####

For more information, please click here

Copyright © FARS

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

Enhancing molecular imaging with light: New technology platform increases spectroscopic resolution by 4 fold July 27th, 2016

New nontoxic process promises larger ultrathin sheets of 2-D nanomaterials July 27th, 2016

Nanometrics Reports Second Quarter 2016 Financial Results July 26th, 2016

Ultrasensitive sensor using N-doped graphene July 26th, 2016

Academic/Education

The NanoWizard® AFM from JPK is applied for interdisciplinary research at the University of South Australia for applications including smart wound healing and how plants can protect themselves from toxins July 26th, 2016

News from Quorum: The College of New Jersey use the Quorum Cryo-SEM preparation system in a project to study ice crystals in high altitude clouds July 19th, 2016

Leti and Korea Institute of Science and Technology to Explore Collaboration on Advanced Technologies for Digital Era July 14th, 2016

SUNY Poly Celebrates Its 10th Year Exhibiting at SEMICON West with Cutting Edge Developments in Integrated Photonics and Power Electronics July 8th, 2016

Materials/Metamaterials

New lithium-oxygen battery greatly improves energy efficiency, longevity: New chemistry could overcome key drawbacks of lithium-air batteries July 26th, 2016

Designing climate-friendly concrete, from the nanoscale up: New understanding of concrete’s properties could increase lifetime of the building material, decrease emissions July 25th, 2016

Ultra-flat circuits will have unique properties: Rice University lab studies 2-D hybrids to see how they differ from common electronics July 25th, 2016

Attosecond physics: Mapping electromagnetic waveforms July 25th, 2016

Announcements

Enhancing molecular imaging with light: New technology platform increases spectroscopic resolution by 4 fold July 27th, 2016

New nontoxic process promises larger ultrathin sheets of 2-D nanomaterials July 27th, 2016

Nanometrics Reports Second Quarter 2016 Financial Results July 26th, 2016

Ultrasensitive sensor using N-doped graphene July 26th, 2016

Aerospace/Space

Scientists move 1 step closer to creating an invisibility cloak July 15th, 2016

Bouncing droplets remove contaminants like pogo jumpers: Researchers at Duke University and the University of British Columbia are exploring whether surfaces can shed dirt without being subjected to fragile coatings July 7th, 2016

Russian physicists create a high-precision 'quantum ruler': Physicists have devised a method for creating a special quantum entangled state June 25th, 2016

Novel capping strategy improves stability of perovskite nanocrystals: Study addresses instability issues with organometal-halide perovskites, a promising class of materials for solar cells, LEDs, and other applications June 13th, 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