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Glass reinforced hydroxyapatite for hard tissue surgery—Part 1: mechanical properties

Paper ID Volume ID Publish Year Pages File Format Full-Text
12873 820 2001 5 PDF Available
Title
Glass reinforced hydroxyapatite for hard tissue surgery—Part 1: mechanical properties
Abstract

Commercial hydroxyapatite (HA) was reinforced by adding 2.5 and 5 wt% of a Na2O–CaO–P2O5 glass and then sintered. The resulting composites have chemical compositions that are similar to the inorganic constituent of the mineral part of bone, and are closely related to the trace elements that are present, in this case Na. X-ray diffraction showed no decomposition of HA to secondary phases; however, the glass reinforced-HA composites contained a HA phase and variable amounts of tricalcium phosphate phase, depending on the sintering temperature and the amount of glass added. The HA-composite material exhibited higher flexural strength overall compared to sintered HA. The presence of secondary phases β- and α-tricalcium phosphate in the microstructure of the composites has a major influence on the mechanical properties. Additionally, the presence of porosity also has a bearing on the mechanical properties of the material.

Keywords
Hydroxyapatite; Decomposition; Tricalcium phosphate; Mechanical properties
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Glass reinforced hydroxyapatite for hard tissue surgery—Part 1: mechanical properties
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 22, Issue 20, 15 October 2001, Pages 2811–2815
Authors
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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