fulltext.study @t Gmail

Phase composition and in vitro bioactivity of porous implants made of bioactive glass S53P4

Paper ID Volume ID Publish Year Pages File Format Full-Text
722 60 2012 9 PDF Available
Title
Phase composition and in vitro bioactivity of porous implants made of bioactive glass S53P4
Abstract

This work studied the influence of sintering temperature on the phase composition, compression strength and in vitro properties of implants made of bioactive glass S53P4. The implants were sintered within the temperature range 600–1000 °C. Over the whole temperature range studied, consolidation took place mainly via viscous flow sintering, even though there was partial surface crystallization. The mechanical strength of the implants was low but increased with the sintering temperature, from 0.7 MPa at 635 °C to 10 MPa at 1000 °C. Changes in the composition of simulated body fluid (SBF), the immersion solution, were evaluated by pH measurements and ion analysis using inductively coupled plasma optical emission spectrometry. The development of a calcium phosphate layer on the implant surfaces was verified using scanning electron microscopy–electron-dispersive X-ray analysis. When immersed in SBF, a calcium phosphate layer formed on all the samples, but the structure of this layer was affected by the surface crystalline phases. Hydroxyapatite formed more readily on amorphous and partially crystalline implants containing both primary Na2O·CaO·2SiO2 and secondary Na2Ca4(PO4)2SiO4 crystals than on implants containing only primary crystals.

Keywords
S53P4; Bioactive glass; Sintering; In vitro
First Page Preview
Phase composition and in vitro bioactivity of porous implants made of bioactive glass S53P4
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: Acta Biomaterialia - Volume 8, Issue 6, July 2012, Pages 2331–2339
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