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Cellular Ti–6Al–4V structures with interconnected macro porosity for bone implants fabricated by selective electron beam melting

Paper ID Volume ID Publish Year Pages File Format Full-Text
1587 86 2008 9 PDF Available
Title
Cellular Ti–6Al–4V structures with interconnected macro porosity for bone implants fabricated by selective electron beam melting
Abstract

Selective electron beam melting (SEBM) was successfully used to fabricate novel cellular Ti–6Al–4V structures for orthopaedic applications. Micro computer tomography (μCT) analysis demonstrated the capability to fabricate three-dimensional structures with an interconnected porosity and pore sizes suitable for tissue ingrowth and vascularization. Mechanical properties, such as compressive strength and elastic modulus, of the tested structures were similar to those of human bone. Thus, stress-shielding effects after implantation might be avoided due to a reduced stiffness mismatch between implant and bone. A chemical surface modification using HCl and NaOH induced apatite formation during in vitro bioactivity tests in simulated body fluid under dynamic conditions. The modified bioactive surface is expected to enhance the fixation of the implant in the surrounding bone as well as to improve its long-term stability.

Keywords
Titanium alloys; Surface modification; Bioactivity; Selective electron beam melting; Porous structures
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Cellular Ti–6Al–4V structures with interconnected macro porosity for bone implants fabricated by selective electron beam melting
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Publisher
Database: Elsevier - ScienceDirect
Journal: Acta Biomaterialia - Volume 4, Issue 5, September 2008, Pages 1536–1544
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