Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > Reduction of Particle Size Modifies Magnetic Properties of Materials

Abstract:
Iranian researchers from Isfahan University of Technology modified the properties of a magnetic material by using nanotechnology, which has many applications in various industries.

Reduction of Particle Size Modifies Magnetic Properties of Materials

Tehran, Iran | Posted on June 17th, 2014

Barium ferrite is a magnetic material that is used in the production of permanent magnets, magnetic sorption environment and microwave adsorbents. Size, structure, and magnetic properties of the material highly depend on the production conditions and the nature of the raw material used in the production process.

According to the supervisor of the research, Dr. Parviz Kameli, effort was made in this research to investigate the produced barium ferrite nanoparticles and the effect of re-cooking temperature on magnetic properties of the final product.

In the present studies, various methods, including sol-gel or hydrothermal methods, have usually been used for the production of barium ferrite nanoparticles. But in this research, the nanoparticles have been produced through co-precipitation method in the presence of high concentration of hydroxide ions and low process temperature.

Taking into consideration the low temperature of the production process, reduction in energy consumption and increase in the production rate of the final product are among the important results of the research.

FE-SEM images taken from the structure of the product show that the re-cooking temperature is an important parameter in controlling the size of particle diameter from nanometric to micrometric scale, to the extent that as temperature increases from 90 to 1200°C, the size of nanoparticles changes from a few nanometers to micrometers.

On the other hand, magnetic properties of the nanoparticles increase as the re-cooking temperature increases. In this report, the best temperature was reported to be 900°C to obtain magnetic properties and the optimum particle size.

Results of the research have been published in Ceramics International, vol. 40, issue 5, January 2014, pp. 7279-7284.

####

For more information, please click here

Copyright © Fars News Agency

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

Strengthening thin-film bonds with ultrafast data collection October 23rd, 2014

RF Heating of Magnetic Nanoparticles Improves the Thawing of Cryopreserved Biomaterials October 23rd, 2014

TARA Biosystems and Harris & Harris Group Form Company to Improve Safety and Efficacy of New Therapies October 22nd, 2014

Researchers patent a nanofluid that improves heat conductivity October 22nd, 2014

Discoveries

Strengthening thin-film bonds with ultrafast data collection October 23rd, 2014

RF Heating of Magnetic Nanoparticles Improves the Thawing of Cryopreserved Biomaterials October 23rd, 2014

Mechanism behind nature's sparkles revealed October 22nd, 2014

Researchers patent a nanofluid that improves heat conductivity October 22nd, 2014

Materials/Metamaterials

Researchers patent a nanofluid that improves heat conductivity October 22nd, 2014

Materials for the next generation of electronics and photovoltaics: MacArthur Fellow develops new uses for carbon nanotubes October 21st, 2014

Super stable garnet ceramics may be ideal for high-energy lithium batteries October 21st, 2014

Could I squeeze by you? Ames Laboratory scientists model molecular movement within narrow channels of mesoporous nanoparticles October 21st, 2014

Announcements

Advancing thin film research with nanostructured AZO: Innovnano’s unique and cost-effective AZO sputtering targets for the production of transparent conducting oxides October 23rd, 2014

Strengthening thin-film bonds with ultrafast data collection October 23rd, 2014

RF Heating of Magnetic Nanoparticles Improves the Thawing of Cryopreserved Biomaterials October 23rd, 2014

Researchers patent a nanofluid that improves heat conductivity October 22nd, 2014

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals

Strengthening thin-film bonds with ultrafast data collection October 23rd, 2014

RF Heating of Magnetic Nanoparticles Improves the Thawing of Cryopreserved Biomaterials October 23rd, 2014

NIST offers electronics industry 2 ways to snoop on self-organizing molecules October 22nd, 2014

Journal Nanotechnology Progress International (JONPI), 2014, Volume 5, Issue 1, pp 1-24 October 22nd, 2014

Industrial

Researchers patent a nanofluid that improves heat conductivity October 22nd, 2014

New Nanocomposites Help Elimination of Toxic Dyes October 15th, 2014

Perpetuus Carbon Group Receives Independent Verification of its Production Capacity for Graphenes at 140 Tonnes per Annum: Perpetuus Becomes the First Manufacturer in the Sector to Allow Third Party Audit October 7th, 2014

Bilbao (Spain) to welcome 1500 delegates at international event: ImagineNano 2015 and Graphene 2015 under the same roof October 2nd, 2014

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







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE