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

Heinl P, Müller L, Körner C, Singer R, Müller F (2008)

Publication Language: English

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2008

Journal

Acta Biomaterialia Elsevier

Book Volume: 4

Pages Range: 1536-1544

Journal Issue: 5

DOI: 10.1016/j.actbio.2008.03.013

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. © 2008 Acta Materialia Inc.

Authors with CRIS profile

Peter Heinl Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle) Carolin Körner Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle) Robert Singer Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)

Additional Organisation(s)

Exzellenz-Cluster Engineering of Advanced Materials

Related research project(s)

Activity Development of process strategies Jan. 1, 2000 - Jan. 1, 2003 Activity SEBM of special alloys Jan. 1, 2000 - Jan. 1, 2003

Involved external institutions

Friedrich-Schiller-Universität Jena DE Germany (DE)

How to cite

APA:

Heinl, P., Müller, L., Körner, C., Singer, R., & Müller, F. (2008). Cellular Ti-6Al-4V structures with interconnected macro porosity for bone implants fabricated by selective electron beam melting. Acta Biomaterialia, 4(5), 1536-1544. https://dx.doi.org/10.1016/j.actbio.2008.03.013

MLA:

Heinl, Peter, et al. "Cellular Ti-6Al-4V structures with interconnected macro porosity for bone implants fabricated by selective electron beam melting." Acta Biomaterialia 4.5 (2008): 1536-1544.

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