Response of 45S5 Bioglass® foams to tensile loading

Rehorek L, Chlup Z, Meng D, Yunos DM, Boccaccini AR, Dlouhy I (2013)

Publication Type: Journal article

Publication year: 2013

Journal

Ceramics International Elsevier

Publisher: Elsevier

Book Volume: 39

Pages Range: 8015-8020

Journal Issue: 7

DOI: 10.1016/j.ceramint.2013.03.070

Abstract

The tensile strength test of highly porous ceramic foams has been developed and first results have been obtained on bioactive glass foams. The tested material was a 45S5 Bioglass® derived foam-like scaffold intended for use in bone tissue engineering which was manufactured by Bioglass® slurry coating of polyurethane foam and subsequent sintering. The Bioglass® foam structure was investigated in two states: uncoated (as fabricated) and with a PDLLA polymer coating. The tensile testing procedure is based on fixation of the foam into aluminium pots by a suitable adhesive. Tensile test samples having cross-section of 10×10 mm2 and a length of 30 mm were used for the experiments. Basic fractographic analysis was applied to get relevant information about specimens' behaviour during tensile loading. In Bioglass® based scaffolds, the presence of PDLLA coating led to a significant increase of the fracture strength, which is attributed to the interaction of the polymer phase with propagating cracks, e.g. enabling a crack bridging mechanism to take place. © 2013 Elsevier Ltd and Techna Group S.r.l.

Authors with CRIS profile

Aldo Boccaccini Lehrstuhl für Werkstoffwissenschaften (Biomaterialien)

Involved external institutions

Academy of Sciences of the Czech Republic (ASCR) / Akademie věd České republiky (AVČR) CZ Czech Republic (CZ) Imperial College London / The Imperial College of Science, Technology and Medicine GB United Kingdom (GB)

How to cite

APA:

Rehorek, L., Chlup, Z., Meng, D., Yunos, D.M., Boccaccini, A.R., & Dlouhy, I. (2013). Response of 45S5 Bioglass® foams to tensile loading. Ceramics International, 39(7), 8015-8020. https://dx.doi.org/10.1016/j.ceramint.2013.03.070

MLA:

Rehorek, L., et al. "Response of 45S5 Bioglass® foams to tensile loading." Ceramics International 39.7 (2013): 8015-8020.

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