Nanotechnology Now





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 1200°C while the minimum value is reached at 1000°C. The increase in the sintering temperature from 1000°C to 1300°C 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

Carnegie Mellon chemists characterize 3-D macroporous hydrogels: Methods will allow researchers to develop new 'smart' materials June 30th, 2015

Visible Light-Sensitive Photocatalysts Used for Purification of Contaminated Water in Iran June 30th, 2015

The Hydrogen-Fuel cell will revolutionize the economy of the world: New non-platinum and nanosized catalyst for polymer electrolyte fuel cell June 29th, 2015

X-rays and electrons join forces to map catalytic reactions in real-time: New technique combines electron microscopy and synchrotron X-rays to track chemical reactions under real operating conditions June 29th, 2015

Discoveries

Influential Interfaces Lead to Advances in Organic Spintronics July 1st, 2015

Ultra-stable JILA microscopy technique tracks tiny objects for hours July 1st, 2015

Emergence of a 'devil's staircase' in a spin-valve system July 1st, 2015

Measurement of Tiny Amounts of Heavy Metals in Baby Food Samples July 1st, 2015

Materials/Metamaterials

Proposed TSCA Nanomaterial Rule ‘Premature’, Says Former EPA Toxicologist July 1st, 2015

NEI Announces the Issuance of Multiple Patents on Self-Healing & Superhydrophobic Coatings June 30th, 2015

BASF and Fraunhofer IPMS-CNT jointly develop electronic materials June 30th, 2015

Green Chemistry Methods Used in Iran to Produce Zinc Oxide Nanoparticles June 27th, 2015

Announcements

Leti Announces Launch of First European Nanomedicine Characterisation Laboratory: Project Combines Expertise of 9 Partners in 8 Countries to Foster Nanomedicine Innovation and Facilitate Regulatory Approval July 1st, 2015

Bruker Introduces Second-Generation Inspire Nanochemical Imaging Solution: Featuring Unique PeakForce IR and IR EasyAlign Technology July 1st, 2015

GLOBALFOUNDRIES Completes Acquisition of IBM Microelectronics Business: Transaction adds differentiating technologies, world-class technologists, and intellectual property July 1st, 2015

Samsung's New Graphene Technology Will Double Life Of Your Lithium-Ion Battery July 1st, 2015

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

Influential Interfaces Lead to Advances in Organic Spintronics July 1st, 2015

Emergence of a 'devil's staircase' in a spin-valve system July 1st, 2015

Samsung's New Graphene Technology Will Double Life Of Your Lithium-Ion Battery July 1st, 2015

Measurement of Tiny Amounts of Heavy Metals in Baby Food Samples July 1st, 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