fulltext.study @t Gmail

Ultrastructural observation of single-crystal apatite fibres

Paper ID Volume ID Publish Year Pages File Format Full-Text
12721 814 2005 7 PDF Available
Title
Ultrastructural observation of single-crystal apatite fibres
Abstract

Hydroxyapatite (HAp) has been widely used as a biomaterial for substituting human hard tissues such as bone. By altering the morphology of HAp crystals, novel properties may be produced by controlling the orientation of the crystal planes. Apatite fibres were successfully synthesized by precipitation from aqueous solutions containing Ca(NO3)2, (NH4)2HPO4, urea and HNO3. The products were composed of carbonate-containing apatite fibres with preferred orientation along the {h00} planes. Examination of individual fibres using transmission electron microscopy showed that the as-synthesized apatite fibres were highly strained single crystals with the c-axis orientation parallel to the long axis of the fibre. The crushed fibres consisted of domains that were preferentially oriented with the c-axis parallel to the long axis of the fibres. When the apatite fibres were heated to 800, 1000 and 1200 °C for 1 h, the domains were removed and grain boundaries, dislocations and voids were formed.

Keywords
Hydroxyapatite; Microstructure; Transmission electron microscopy; Apatite fibre; Single crystal
First Page Preview
Ultrastructural observation of single-crystal apatite fibres
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 26, Issue 17, June 2005, Pages 3427–3433
Authors
, , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us