The mechanical reliability of 45S5 bioactive glass-derived scaffolds was quantified, for the first time, by determining the Weibull modulus (m) in compressive loading mode. The scaffolds were fabricated by sponge replication followed by sinter-crystallization (main crystalline phase Na2CaSi2O6) and exhibited a trabecular pore-strut 3D architecture. The Weibull modulus (m = 6) was higher than most of those reported in the literature for bioactive glass and ceramic scaffolds. The compressive strength was found dependent on porosity according to a power-law relationship. The mechanical properties and bone-like macroporous structure of these glass–ceramic scaffolds show great promise for use in bone repair applications.
Mechanical characterization of 45S5 bioactive glass-derived scaffolds / Baino, Francesco; Fiume, Elisa. - In: MATERIALS LETTERS. - ISSN 0167-577X. - ELETTRONICO. - 245:(2019), pp. 14-17. [10.1016/j.matlet.2019.02.086]
Mechanical characterization of 45S5 bioactive glass-derived scaffolds
Baino, Francesco;Fiume, Elisa
2019
Abstract
The mechanical reliability of 45S5 bioactive glass-derived scaffolds was quantified, for the first time, by determining the Weibull modulus (m) in compressive loading mode. The scaffolds were fabricated by sponge replication followed by sinter-crystallization (main crystalline phase Na2CaSi2O6) and exhibited a trabecular pore-strut 3D architecture. The Weibull modulus (m = 6) was higher than most of those reported in the literature for bioactive glass and ceramic scaffolds. The compressive strength was found dependent on porosity according to a power-law relationship. The mechanical properties and bone-like macroporous structure of these glass–ceramic scaffolds show great promise for use in bone repair applications.File | Dimensione | Formato | |
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45S5 BG scaffold_Weibull Mater Lett 2019.pdf
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https://hdl.handle.net/11583/2731701
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