Szczegóły publikacji
Opis bibliograficzny
The influence of sintering conditions on microstructure and mechanical properties of titanium dioxide scaffolds for the treatment of bone tissue defects / Łucja RUMIAN, Katarzyna RECZYŃSKA, Małgorzata Wrona, Hanna Tiainen, Håvard J. Haugen, Elżbieta PAMUŁA // Acta of Bioengineering and Biomechanics ; ISSN 1509-409X. — 2015 — vol. 17 no. 1, s. 3–9. — Bibliogr. s. 9. — Ł. Rumian, K. Reczyńska – dod. afiliacja: University of Oslo
Autorzy (6)
- AGHRumian Łucja Dobromiła
- AGHReczyńska-Kolman Katarzyna
- AGHWrona Małgorzata
- Tiainen Hanna
- Haugen Håvard Jostein
- AGHPamuła Elżbieta
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 90778 |
|---|---|
| Data dodania do BaDAP | 2015-08-07 |
| Tekst źródłowy | URL |
| DOI | 10.5277/ABB-00129-2014-02 |
| Rok publikacji | 2015 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Acta of Bioengineering and Biomechanics |
Abstract
In this study the attempts to improve mechanical properties of highly-porous titanium dioxide scaffolds produced by polymer sponge replication method were investigated. Particularly the effect of two-step sintering at different temperatures on microstructure and mechanical properties (compression test) of the scaffolds were analysed. To this end microcomputed tomography and scanning electron microscopy were used as analytical methods. Our experiments showed that the most appropriate conditions of manufacturing were when the scaffolds were heat-treated at 1500 °C for 1 h followed by sintering at 1200 °C for 20 h. Such scaffolds exhibited the highest compressive strength which was correlated with the highest linear density and the lowest size of grains. Moreover, grain size distribution was narrower with predominating fraction of fine grains 10–20 μm in size. Smaller grains and higher linear density suggested that in this case densification process prevailed over undesirable process of grain coarsening, which finally resulted in improved mechanical properties of the scaffolds.