Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Non-Destructive Tests Carried Out at Nanometric Scale in Iran to Characterize Hydroxyapatite

Abstract:
Researchers from Iran University of Science and Technology characterized mechanical properties of hydroxyapatite powder by using novel and non-destructive tests.

Non-Destructive Tests Carried Out at Nanometric Scale in Iran to Characterize Hydroxyapatite

Tehran, Iran | Posted on June 27th, 2014

The research was carried out in association with University of Malaya, Malaysia, and Gadjah Mada University, Indonesia.

The aim of the research was to investigate the production method of a type of hydroxyapatite that is compatible with human body and has desirable mechanical properties such as higher strength and higher resistance against abrasion and scratch. During the investigation of the desired properties, nano-identation and nano-scratch tests were successfully carried out on hydroxyapatite samples.

Dr. Majid Reza Ayatollahi, the supervisor of the research, explained why these tests had been chosen. "There is no need for large samples to carry out nano-identation or nano-scratch tests. Therefore, they are very good for biological materials that are relatively expensive. On the other hand, the tests can be repeated on a sample due to their non-destructive nature. The possibility to precisely control the charge and the diffusion of the identator and the lack of the presence of chemical or electrical fields are among the advantages of the test."

According to the results, the maximum amount of Young's Module for hydroxyapatite is obtained at sintering temperature of 1200C while the minimum value is reached at 1000C. The increase in the sintering temperature from 1000C to 1300C increases the toughness of hydroxyapatite. More increase in the sintering temperature has negative effect on the toughness. At all sintering temperatures, the amount of toughness obtained from nano-scratch test was higher than that obtained from nano-identation test.

Results of the research have been published in Ceramics International, vol. 40, issue 7, January 2014, pp. 9159-9164.

####

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

Chemistry

March 2016; 6th Int'l Conference on Nanostructures in Iran July 29th, 2015

Meet the high-performance single-molecule diode: Major milestone in molecular electronics scored by Berkeley Lab and Columbia University team July 29th, 2015

'Seeing' molecular interactions could give boost to organic electronics July 28th, 2015

Quantum networks: Back and forth are not equal distances! July 28th, 2015

Discoveries

Atomic view of microtubules: Berkeley Lab researchers achieve record 3.5 angstroms resolution and visualize action of a major microtubule-regulating protein August 4th, 2015

World's quietest gas lets physicists hear faint quantum effects August 4th, 2015

Artificial blood vessels become resistant to thrombosis August 4th, 2015

Engineering a better 'Do: Purdue researchers are learning how August 4th, 2015

Materials/Metamaterials

Engineering a better 'Do: Purdue researchers are learning how August 4th, 2015

Thin films offer promise for ferroelectric devices: Researchers at Tokyo Institute of Technology demystify the ferroelectric properties observed in hafnium-oxide-based thin films, revealing a potentially useful device material August 3rd, 2015

Self-assembling, biomimetic membranes may aid water filtration August 1st, 2015

Transparent, electrically conductive network of encapsulated silver nanowires: A novel electrode for optoelectronics August 1st, 2015

Announcements

Artificial blood vessels become resistant to thrombosis August 4th, 2015

Engineering a better 'Do: Purdue researchers are learning how August 4th, 2015

Proving nanoparticles in sunscreen products August 4th, 2015

Global Carbon Nanotubes Industry 2015: Acute Market Reports August 4th, 2015

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

World's quietest gas lets physicists hear faint quantum effects August 4th, 2015

Artificial blood vessels become resistant to thrombosis August 4th, 2015

Global Carbon Nanotubes Industry 2015: Acute Market Reports August 4th, 2015

Nanoparticles Give Antibacterial Properties to Machine-Woven Carpets August 4th, 2015

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