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:
News and information
Pioneering breakthrough of chemical nanoengineering to design drugs controlled by light June 18th, 2013
Study Shows How the Nanog Protein Promotes Growth of Head and Neck Cancer June 18th, 2013
New Method to Synthesize Zinc Oxide Nanoparticles with High Catalytic Activity June 18th, 2013
Production of Polyaniline Biosensors Modified with Conductive Polymer Composites June 18th, 2013
Academic/Education
CNSE Welcomes Record Number of Students, Majority of Whom are New Yorkers, for Prestigious Summer Internship Program June 12th, 2013
FEI and University of Oklahoma Begin Collaboration Research Agreement for Understanding and Developing Unconventional Oil and Gas Reservoirs: Collaboration effort will focus on new methods to classify shales in the economic assessment of “tight” resource plays June 7th, 2013
Johannes Gutenberg University Mainz obtains new Collaborative Research Center on "Nanodimensional polymer therapeutics for tumor therapy" June 2nd, 2013
Lorraine University uses Nanoparticle Tracking Analysis to characterize biomolecules for agrichemicals, pharmacology and cosmetics May 28th, 2013
Materials
Working backward: Computer-aided design of zeolite templates: Rice scientists apply drug-design lessons to production of industrial minerals June 17th, 2013
Discover the ‘Nanostructure Advantage’ at ECerS 2013, Booth 5: Innovnano presents nanostructured powders for high performance ceramics June 17th, 2013
Discovery of new material state counterintuitive to laws of physics June 14th, 2013
Ceramics in Paper Manufacturing including Advanced and Nano Materials: Author- Dr. Mahendra Patel, 420 pages; 32 chapters, Publ.2013 June 12th, 2013
Announcements
Pioneering breakthrough of chemical nanoengineering to design drugs controlled by light June 18th, 2013
Study Shows How the Nanog Protein Promotes Growth of Head and Neck Cancer June 18th, 2013
New Method to Synthesize Zinc Oxide Nanoparticles with High Catalytic Activity June 18th, 2013
Production of Polyaniline Biosensors Modified with Conductive Polymer Composites June 18th, 2013
Aerospace/Space
'Popcorn' particle pathways promise better lithium-ion batteries June 11th, 2013
Space Solar Power: Key to a Livable Planet Earth June 10th, 2013
Researchers enlist Cameca Nanosims Microprobe to determine origins of lunar water: Microprobes's results indicate water on Earth and Moon has similar origin June 4th, 2013
National Space Society Report On Annual Conference June 3rd, 2013